Annals of Coloproctology

Benign bowel disease

Colonic duplication in an adult with chronic constipation: a case report and review of its surgical management: Muhammad Ash-Shafhawi Adznan, Hizami Amin Tai, Aras Emre Canda, Nevra Elmas, Mustafa Cem Terzi; Ann Coloproctol. 2024;40(Suppl 1):S6-S10. Published online May 16, 2024; DOI: https://doi.org/10.3393/ac.2022.01081.0154

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One of the possible causes of chronic constipation is colonic duplication. Although seldom asymptomatic, its diagnosis is important due to the risk of malignancy that it carries. We present a case of a young female patient with long-standing constipation who was referred to Kolorektal Cerrahi Clinic (Izmir, Turkey) after scans revealed tubular type of colonic duplication. We successfully performed a laparoscopic total colectomy, and she recovered well. Identifying the type of duplication is important to ensure adequate resection and treatment. A proper workup, including carcinoembryonic antigen levels, must be done as well. Multiple surgical techniques and procedures have been introduced for this condition, but resection of the duplicated colon with its native lumen should be the management of choice, especially in tubular type of duplications such as in our case. In centers where laparoscopic services are available, laparoscopy could be a better option, as it provides multiple benefits of minimally invasive surgery. Attention should also be paid to anatomical details during surgery to ensure better results and outcomes.

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Tubular duplication of colon with diverticulosis in an adult
Pinaki Saoji, Shrishail Adke, Ajith Varrior
Journal of Applied & Clinical Radiology.2025; 1(2): 67. CrossRef

Anorectal benign disease

Chronic fistula in ano associated with adenocarcinoma: a case report with a review of the literature: Nalini Kanta Ghosh, Ashok Kumar; Ann Coloproctol. 2024;40(Suppl 1):S1-S5. Published online May 16, 2024; DOI: https://doi.org/10.3393/ac.2022.00752.0107

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Abstract PDF: The malignant transformation of chronic fistula in ano is rare, accounting for 3% to 11% of all anal canal malignancies. It results from long-standing inflammation and chronic irritation. No guidelines are available for the management of these cases. We herein present a case report of a 55-year-old man who presented with a history of constipation, perianal pain, and discharging fistula in ano of 4-year duration and underwent fistula surgery with recurrence. Biopsy of the fistulous tract revealed adenocarcinoma. He received neoadjuvant chemoradiotherapy, followed by abdominoperineal excision including excision of the fistulous tract. After 18 months of follow-up, he is free of recurrence. We present this case with a review of the literature, highlighting the management strategies.

Benign bowel disease

Strangulated internal hernia through a defect of the broad ligament: a case report of laparoscopic surgery: Ji Hyeong Song, Jin Soo Kim; Ann Coloproctol. 2024;40(Suppl 1):S44-S47. Published online April 27, 2023; DOI: https://doi.org/10.3393/ac.2022.00906.0129

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An internal hernia is defined as the protrusion of an internal organ through a defect in the abdominal cavity. Broad ligament hernia (BLH) is an extremely rare type of internal hernia that is difficult to diagnose preoperatively because the symptoms are nonspecific. However, early diagnosis is crucial, and early surgery is required to reduce complications such as strangulation. Laparoscopy has the advantage of enabling simultaneous diagnosis and treatment of BLH. With the advancement of the laparoscopic techniques, several cases of laparoscopic treatment of BLH have been reported. Nevertheless, open surgery is primarily performed in patients requiring bowel resection. We present a case of laparoscopic surgery for a strangulated internal hernia through a broad ligament defect. We successfully resected the strangulated small intestine and closed the defect of the broad ligament laparoscopically with a minor incision.

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Broad ligament defect causing internal hernia: A case report and literature review
Jie He, Yan Wen, Banzhu Zhang, Jun Zhou, Yuan Lin
Medicine.2025; 104(43): e45264. CrossRef
Inflamed Appendix Protruding Through a Right Broad Ligament Defect: A Case Report
Elissavet Symeonidou, Ioannis Gkoutziotis, Maria S SidiropouIou, Chrysoula Gouta , Kalliopi Gianna , Konstantinos Mpallas
Cureus.2024;[Epub] CrossRef

Colorectal cancer

Neuroendocrine carcinoma associated with chronic ulcerative colitis: a case report and review of the literature: Yumi Yokota, Hiroyuki Anzai, Yuzo Nagai, Hirofumi Sonoda, Takahide Shinagawa, Yuichiro Yoshioka, Shinya Abe, Yuichiro Yokoyama, Hiroyuki Matsuzaki, Shigenobu Emoto, Koji Murono, Kazuhito Sasaki, Hiroaki Nozawa, Tetsuo Ushiku, Soichiro Ishihara; Ann Coloproctol. 2024;40(Suppl 1):S32-S37. Published online April 19, 2023; DOI: https://doi.org/10.3393/ac.2022.00801.0114

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Adenocarcinoma is a common histological type of ulcerative colitis-associated cancer (UCAC), whereas neuroendocrine carcinoma (NEC) is extremely rare. UCAC is generally diagnosed at an advanced stage, even with regular surveillance colonoscopy. A 41-year-old man with a 17-year history of UC began receiving surveillance colonoscopy at the age of 37 years; 2 years later, dysplasia was detected in the sigmoid colon, and he underwent colonoscopy every 3 to 6 months. Approximately 1.5 years thereafter, a flat adenocarcinoma lesion occurred in the rectum. Flat lesions with high-grade dysplasia were found in the sigmoid colon and surrounding area. The patient underwent laparoscopic total proctocolectomy and ileal pouch-anal anastomosis with ileostomy. Adenocarcinoma was diagnosed in the sigmoid colon and NEC in the rectum. One year postoperation, recurrence or metastasis was not evident. Regular surveillance colonoscopy is important in patients with long-term UC. A histological examination of UCAC might demonstrate NEC.

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Depressed lesion detected during surveillance colonoscopy in a patient with ulcerative colitis
Keijiro Numa, Kazuki Kakimoto, Noboru Mizuta, Naohiko Kinoshita, Kei Nakazawa, Ryoji Koshiba, Yuki Hirata, Ken Kawakami, Takako Miyazaki, Shiro Nakamura, Hiroki Nishikawa
Intestinal Research.2025;[Epub] CrossRef

Colorectal cancer

Treatment of side limb full-thickness prolapse of the side-to-end coloanal anastomosis following intersphincteric resection: a case report and review of literature: Guglielmo Niccolò Piozzi, Krunal Khobragade, Seon Hui Shin, Jeong Min Choo, Seon Hahn Kim; Ann Coloproctol. 2024;40(Suppl 1):S38-S43. Published online February 8, 2023; DOI: https://doi.org/10.3393/ac.2022.00829.0118

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Intersphincteric resection (ISR) with coloanal anastomosis is an oncologically safe anus-preserving technique for very low-lying rectal cancers. Most studies focused on oncological and functional outcomes of ISR with very few evaluating long-term postoperative anorectal complications. Full-thickness prolapse of the neorectum is a relatively rare complication. This report presents the case of a 70-year-old woman presenting with full-thickness prolapse of the side limb of the side-to-end coloanal anastomosis occurring 2 weeks after the stoma closure and 2 months after a robotic partial ISR performed with the Da Vinci single-port platform. The anastomosis was revised through resection of the side limb and conversion of the side-to-end anastomosis into an end-to-end handsewn anastomosis with interrupted stitches. This study describes the first case of full-thickness prolapse of the side limb of the side-to-end handsewn coloanal anastomosis following ISR. Moreover, a revision of all reported cases of post-ISR full-thickness and mucosal prolapse was performed.

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International standardization and optimization group for intersphincteric resection (ISOG‐ISR): modified Delphi consensus on anatomy, definition, indication, surgical technique, specimen description and functional outcome
Guglielmo Niccolò Piozzi, Krunal Khobragade, Vusal Aliyev, Oktar Asoglu, Paolo Pietro Bianchi, Vlad‐Olimpiu Butiurca, William Tzu‐Liang Chen, Ju Yong Cheong, Gyu‐Seog Choi, Andrea Coratti, Quentin Denost, Yosuke Fukunaga, Emre Gorgun, Francesco Guerra, Ma
Colorectal Disease.2023; 25(9): 1896. CrossRef

Colorectal cancer

Melanocytic nevus of the anal canal and granular cell tumor of the cecum: a case report and literature review of 2 coincidentally co-occurring neurocristopathies: Victoria Sandoval, Jorge Lara-Endara, Javier Rodríguez-Suárez, Williams Arias Garzón, Ligia Redrobán, Nelson Montalvo; Ann Coloproctol. 2024;40(Suppl 1):S23-S26. Published online January 12, 2023; DOI: https://doi.org/10.3393/ac.2022.00444.0063

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Abstract PDF: Granular cell tumors are predominantly benign soft tissue tumors originating from Schwann cells, whereas melanocytic nevi are benign proliferations of melanocytes. We present the case of a patient with the presence of both entities located in the cecum and anal canal, respectively, constituting an extremely rare coincidental finding. A 43-year-old woman was evaluated by colonoscopy for iron-deficiency microcytic anemia that had lasted for 1 year. Colonoscopy demonstrated a macular lesion of 0.3 cm with a melanocytic appearance in the anal canal; at the cecum level, a subepithelial, yellowish, and partially mobile firm nodular lesion measuring 1.3 cm was observed. A histopathological study showed a melanocytic nevus in the anal canal and a granular cell tumor in the cecum. This is the first reported case of a patient with the extremely rare coincidental-incidental finding of these 2 entities at the same time.

Metastasis

Peritoneal metastatic mixed adenoneuroendocrine carcinoma treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy: a case report: Sungchul Lee, Euitae Kim, Dong-Guk Park; Ann Coloproctol. 2024;40(Suppl 1):S18-S22. Published online November 21, 2022; DOI: https://doi.org/10.3393/ac.2022.00339.0048

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A 61-year-old man presented with abdominal distension without any symptoms. On colonoscopy and computed tomography findings, it was clinically diagnosed as peritoneal metastasis of sigmoid colon cancer, and diagnostic laparoscopy was performed. Only the peritoneum was partially resected, and the pathology was signet ring cell carcinoma with predominantly local mucinous carcinoma component. However, the patient complained of persistent symptoms and, despite the progress of chemotherapy, the peritoneal dissemination worsened, and additional cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (HIPEC) was performed. Mixed adenoneuroendocrine carcinomas (MANECs) were reported in the appendix with perforated visceral peritoneum. After additional chemotherapy, the patient was discharged. Patients with advanced MANEC with peritoneal spreading may benefit from aggressive treatment by cytoreduction surgery with HIPEC, followed by intravenous chemotherapy.

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Mixed neuroendocrine non-neuroendocrine neoplasms in gastroenteropancreatic tract
Sebastián Díaz-López, Jerónimo Jiménez-Castro, Carlos Enrique Robles-Barraza, Carlos Ayala-de Miguel, Manuel Chaves-Conde
World Journal of Gastrointestinal Oncology.2024; 16(4): 1166. CrossRef

Benign bowel disease

Perioperative considerations for acute appendicitis in patients with COVID-19 infection: two case reports: In-Kyeong Kim, Seung-jin Kwag, Han-Gil Kim, Young-Tae Ju, Seung-Jun Lee, Tae-Jin Park, Sang-Ho Jeong, Eun-Jung Jung, Jin-Kwon Lee; Ann Coloproctol. 2023;39(6):521-525. Published online December 7, 2021; DOI: https://doi.org/10.3393/ac.2021.00647.0092

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We report considerations related with surgery through 2 cases of acute apendicitis with COVID-19 infection. In November and December 2020, two patients infected with COVID-19 developed acute apendicitis and underwent emergency surgery. In case 1, an 84-year-old woman was asymptomatic and diagnosed with acute apendicitis on the 20th day of infection. She was discharged after surgery without complication. In contrast, case 2 was a 69-year-old male patient with pneumonia treated with antibiotics, steroids and remdesivir. After surgery, he was hospitalized for a long duration due to persistent pneumonia and wound complications. We should perform appendectomy in well-established negative pressure operating rooms, personal protective equipment, and protocols. Since the physical examination and blood tests were limited, image examination like computed tomography scan should be considered if acute apendicitis is suspected. If the patient has pneumonia before surgery, it can get worse after surgery, and complications such as wound infections can occur.

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COVID-19-specific risk factor for early post-appendectomy complications (EPAC) in older patients: a retrospective study
Tamer A. A. M. Habeeb, A. Hussain, Jose Bueno-Lledó, M. E. Giménez, A. Aiolfi, M. Chiaretti, I. A. Kryvoruchko, M. N. Manangi, Abd Al-Kareem Elias, Abdelmonem A.M Adam, Mohamed A. Gadallah, Saad Mohamed Ali Ahmed, Ahmed Khyrallh, Mohammed H. Alsayed, Esma
Techniques in Coloproctology.2025;[Epub] CrossRef

Benign bowel disease

Recurrent perianal abscess in a patient with Hermansky-Pudlak syndrome–associated granulomatous colitis: a case report: Ahmet Omak, Tevfik Kıvılcım Uprak, Wafi Attaallah; Ann Coloproctol. 2024;40(Suppl 1):S11-S14. Published online November 19, 2021; DOI: https://doi.org/10.3393/ac.2021.00437.0062

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Abstract PDF: Hermansky-Pudlak syndrome (HPS) is a rare genetic disease consisting of the triad of oculocutaneous albinism, bleeding diathesis, and pigmented reticuloendothelial cells. In HPS patients’ granulomatous colitis could be an additional feature and perianal abscess could be seen in such patients. We report a patient with HPS-associated granulomatous colitis, refractory to medical treatment, and perianal involvement. Patients with HPS-associated granulomatous colitis and perianal involvement may require multiple surgical interventions and there is no consensus yet for treatment in such patients.

Benign bowel disease

A case report of impacted fecalith within mucosal pouch: an unusual cause of colocolic intussusception: Douglas Greer, Adrian Fernandez; Ann Coloproctol. 2024;40(Suppl 1):S15-S17. Published online November 18, 2021; DOI: https://doi.org/10.3393/ac.2021.00724.0103

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Abstract PDF: Intussusception involving the colon is unusual in adults and when present is managed with resection due to the risk of malignancy. We present an unusual case where the intussusceptum was impacted stool in a mucosal pouch in the transverse colon. The patient presented with bleeding per rectum and abdominal pain and was found to have a colocolic intussusception on computed tomography. Colonoscopy showed an ulcerated mass in the transverse colon. A laparoscopic right hemicolectomy was performed. Histopathology demonstrated known chronic lymphocytic leukemia, but not solid malignancy. A large fecalith impacted within a mucosal pouch had acted as the lead point. This represents a highly unusual but benign cause of intussusception.

A rare presentation of low-grade appendiceal mucinous neoplasm within an amyand’s hernia: a case report: Hani Atiqah Saim, Ian Chik, Fahrol Fahmy Jaafar, Zamri Zuhdi, Razman Jarmin, Azlanudin Azman; Ann Coloproctol. 2023;39(2):183-187. Published online October 18, 2021; DOI: https://doi.org/10.3393/ac.2021.00430.0061

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An Amyand’s hernia is characterised as the presence of the appendix in an inguinal hernial sac. During laparoscopic cholecystectomy for gallbladder polyps, an incidental Amyand’s hernia was discovered in a 75-year-old female patient. On examination, the hernia contained an appendiceal mucocele but no evidence of perforation. An open appendicectomy with tension-free mesh repair was performed for the hernia. The histopathological report of the appendix was a low-grade appendiceal mucinous neoplasm (LAMN), an entity that is just as rare as an Amyand’s hernia. The patient had the right inguinal swelling for over 10 years but it was thought to be an inguinal intramuscular cyst as reported on a previous abdominal ultrasound. Mucocele of the appendix may have a benign or malignant appendiceal progress, leading to individualised diagnosis and treatment. We review an Amyand’s hernia with LAMN and discuss the asymptomatic tendency yet malignant potential of appendiceal mucoceles along with treatment strategies.

Citations

Citations to this article as recorded by

Molecular characterization of Pseudomyxoma peritonei with single-cell and bulk RNA sequencing
Ye Jin Ha, Seong-Hwan Park, Seon-Kyu Kim, Ka Hee Tak, Jeong-Hwan Kim, Chan Wook Kim, Yong Sik Yoon, Seon-Young Kim, Jong Lyul Lee
Scientific Data.2025;[Epub] CrossRef
Incidental appendiceal mucocele discovery: A case series and literature review
Nathaniel Grabill, Mena Louis, Jonathan W. Ray, Ana Tucker, Travelyan Walker, James Chambers
International Journal of Surgery Case Reports.2025; 131: 111281. CrossRef
Complicated Appendicitis Associated With Appendiceal Mucinous Neoplasm Within Amyand’s Hernia in a Patient With Previous Hernia Repair: A Case Report and Literature Review
Carlos A Navarro-Castañeda, Luis A Pérez-Silva, Rubén A Sandoval-Barba, Nubia A Ramírez-Buensuceso-Conde, Jorge Farell-Rivas
Cureus.2024;[Epub] CrossRef

Benign bowel disease

A case report of a colouterine fistula treatment: when the patient chooses the steeplechase: Stefano Pontone, Pier Giorgio Nardis, Chiara Eberspacher, Domenico Mascagni; Ann Coloproctol. 2023;39(4):366-370. Published online August 9, 2021; DOI: https://doi.org/10.3393/ac.2021.00318.0045

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Abstract PDF: Colouterine fistula is a rare disease that is primarily treated using surgical approaches. Although invasive surgery is controversial in terms of techniques and results, minimally invasive endoscopic treatments have not been widely described. However, because it is rare for these fistulas to close spontaneously, surgical treatment is often mandatory. Appropriate management of colouterine fistula is complicated, especially when the patient refuses surgery. In this case study, we provide the first description of a minimally invasive endoscopic treatment of an iatrogenic colouterine fistula using a self-expandable metallic stent after an over-the-scope clip malposition.

Metachronous carcinoma at the colostomy site after abdominoperineal resection of rectal cancer: a case report: Young Sun Choi, Kil-young Lee, Youn Young Park, Hyung Jin Kim, Jaeim Lee; Ann Coloproctol. 2023;39(2):175-177. Published online July 27, 2021; DOI: https://doi.org/10.3393/ac.2020.00185.0026

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Metachronous carcinoma at the colostomy site is very rare after abdominoperineal resection. A 53-year-old male patient underwent an abdominoperineal resection 6 years earlier for rectal cancer developed metachronous carcinoma at the site of stoma. A portion of the colon, including the stoma and the surrounding skin, was resected and a new stoma was created in the transverse colon. Although the occurrence of carcinoma at the stoma site is a rare condition, careful observation for the stoma and colonoscopy for surveillance are necessary.

Citations

Citations to this article as recorded by

Tumor Recurrence at the Colostomy Site: A Rare Case Report and Literature Review
Abdelhak Ettaoussi, Ilias El Azhari, Nassima Fakhiri, Abdessamad Majd, Kamal Khadija, Mounir Bouali, Abdelilah El Bakouri, Khalid Khaleq, Khalid El Hattabi
European Journal of Medical and Health Research.2025; 3(3): 215. CrossRef
A rare case of metastatic carcinoma at the colostomy site after abdominoperineal resection
Dheeraj Manne, Tirou Aroul, Robinson Smile
International Surgery Journal.2025; 12(10): 1849. CrossRef
Colostomy‐site carcinoma with primitive phenotype in a rectal cancer patient after achieving pathological complete response with neoadjuvant chemoradiotherapy
Takayuki Kodama, Maki Kanzawa, Hiroshi Hasegawa, Shuichi Tsukamoto, Mari Nishio, Manabu Shigeoka, Yu‐ichiro Koma, Tomoo Itoh, Hiroshi Yokozaki
Pathology International.2024; 74(1): 33. CrossRef
Metachronous Carcinoma at Colostomy Site Post Abdominoperineal Resection – A Rare Presentation Case Report
Muhammed Huzaifa, Ankita Singh, Vaibhav Aggarwal, Anita Dhar
Clinical Cancer Investigation Journal.2023; 12(2): 1. CrossRef
Peristomal adenocarcinoma 16 years after colorectal adenocarcinoma resection with curative intent
Kayleigh A M van Dam, Thaís T T Tweed, Bart de Vries, Henricus J Belgers
Journal of Surgical Case Reports.2023;[Epub] CrossRef
A Rare Case of Metachronous Carcinoma at the Colostomy Site Following Abdominoperineal Resection – Case Report
Naoki Todayama, Ai Hua Chang, Tomohiro Tabata
Archive of International Journal of Cancer and Allied Science.2023; 3(2): 1. CrossRef

Benign bowel disease

Successful detection and removal of predictable juvenile polyp: a case report: Kwang Yeon Kim, Jin Su Kim; Ann Coloproctol. 2023;39(5):435-438. Published online July 21, 2021; DOI: https://doi.org/10.3393/ac.2021.00311.0044

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Juvenile polyp makes up 70% to 80% of pediatric colon polyp, and the average age of diagnosis is 2 to 5 years. The treatment of juvenile polyp in children is polypectomy through colonoscopy. The fact that the lumen of intestine is much smaller than that of adults and the need to perform polypectomy is a heavy burden on the endoscopists. Recently, fecal calprotectin (FC) has been found to be related to juvenile polyp. A previously healthy 34-month-old female patient presented to the pediatric gastroenterology department with intermittent bloody stools that were progressively worsening. FC level was abnormally elevated at 2,719 µg/g (normal, < 50 µg/g). The polyp was successfully removed with a endoscopic polypectomy. This is the first case in Korea to show that FC can be used to screen juvenile polyp in children. Caution must be taken that FC levels can increase with inflammation, regardless of the number or size of the polyps.

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Why is it worth looking for colorectal polyps in children using ultrasound? A case report and literature review
Katarzyna Kamila Bąk-Drabik, Monika Prokurat, Agnieszka Szymlak, Anna Jarzumbek, Paweł Ziora, Jarosław Kwiecień
Pediatria i Medycyna Rodzinna.2025; 20(4): 418. CrossRef

Benign bowel disease

A fecalith mimicking a bladder calculus secondary to an appendicovesical fistula: a case report: Mauricio Gonzalez-Urquijo, Andrea Romero-Davila, MaryCarmen Mendoza-Silva, Antonio Nassim Halun Treviño, Mario Rodarte-Shade, Gerardo Gil-Galindo; Ann Coloproctol. 2023;39(4):362-365. Published online July 21, 2021; DOI: https://doi.org/10.3393/ac.2020.00311.0044

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Abstract PDF: An appendicovesical fistula is defined as an abnormal communication between the appendix and the urinary bladder, with only a few cases reported in the literature. It is very challenging to make an early diagnosis, due to the inability of conventional imaging modalities to detect this unique pathology. The symptoms are often mild, and there are not any specific signs or symptoms that might suggest this type of anomalous communication. We report a case of a 27-year-old male patient who presented difficulty for initiating urination, dysuria, and persistent urinary tract infections. An abdominal x-ray showed a large calculus inside the bladder. A cystoscopy was performed, where the tip of the appendix was seen protruding inside the bladder with a large fecalith adhered to the bladder wall. An appendectomy and partial cystectomy with primary repair were auspiciously achieved. A review of the literature is also presented.

Benign bowel disease

A case report of an unexpected colonic polyp: cavernous hemangioma: Miguel Mascarenhas, Rui Morais, Regina Teixeira, Guilherme Macedo; Ann Coloproctol. 2023;39(3):280-282. Published online July 13, 2021; DOI: https://doi.org/10.3393/ac.2020.00535.0076

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Cavernous hemangiomas of the colon are rare, benign vascular lesions, and the site most commonly affected is the rectosigmoid junction. Surgical treatment is recommended for large diffuse lesions but in the presence of pedunculated lesions, endoscopic resection should be preferred if possible. We report a case of a 65-year-old man referred for colonoscopy after positive fecal occult blood, that revealed at the level of the sigmoid colon, a wide base pedunculated polyp (35 mm) occupying more than half of the lumen, with the covering mucosa with a vinous appearance. In order to remove the lesion, a detachable snare was placed and polypectomy was performed. During the procedure, the detachable snare was cut with active bleeding, controlled after clip placement and diluted adrenaline injection. Afterwards, histology revealed a polypoid lesion with a hyperplastic mucosa and submucosal plane expanded by numerous thick-walled vessels in the context of a cavernous colonic hemangioma.

Citations

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Early and accurate diagnosis and selection of appropriate treatment plans are crucial for patients with gastrointestinal hemangiomas
Zhou Chen, Liang Wang, Peng-Jie Yu
World Journal of Gastrointestinal Surgery.2025;[Epub] CrossRef
A Diagnostic Twist: Cavernous Hemangioma Presenting as Acute Appendicitis
Jesus Sebastian Luna Medrano, Fiorella Guadalupe Rodriguez Campian, Brigida del Pilar Grecia, Alejandra Carolina Vargas Castañeda, Raysha Shirley Silva Jordan, Maylin Abigail Matienzo Rafael, Paolo Augusto Romero Merino
World Journal of Colorectal Surgery.2025; 14(4): 148. CrossRef
Endoscopic Resection of a Cavernous Hemangioma in the Sigmoid Colon: A Case Report
Noora Al-Khater, Mohamed Mohamed, Afra Juma, Faisal Abubaker, Sameer Ansari
Gastro Hep Advances.2024; 3(3): 396. CrossRef
Anorectal hemangioma, a rare cause of lower gastrointestinal bleeding, treated with selective embolization: A case report
Barbora Pospisilova, Jaromir Frydrych, Antonin Krajina, Julius Örhalmi, Ivana M Kajzrlikova, Petr Vitek
World Journal of Gastrointestinal Surgery.2024; 16(8): 2735. CrossRef
Spontaneous colonic perforation of a cavernous hemangioma during colonoscopy
María Florencia Álvarez, Domingo Cesar Balderramo, Florencia Defanti, Mariano Antonio Higa
Gastroenterología y Hepatología.2022; 45: 95. CrossRef
A giant hemangioma of the sigmoid colon as a cause of lower gastrointestinal bleeding in a young man
Lucas Fair, Benjamin Gough, Adatee Oknokwo, Ronney Stadler
Baylor University Medical Center Proceedings.2022; 35(6): 852. CrossRef

Colorectal cancer

Experience of surgical treatment in a granular cell tumor in the ascending colon: a case report: In-Kyeong Kim, Young-Tae Ju, Han-Gil Kim, Jin-Kwon Lee, Dong-Chul Kim, Jae-Myung Kim, Jin Kyu Cho, Ji-Ho Park, Ju-Yeon Kim, Chi-Young Jeong, Soon-Chan Hong, Seung-Jin Kwag; Ann Coloproctol. 2023;39(3):275-279. Published online July 6, 2021; DOI: https://doi.org/10.3393/ac.2020.00836.0119

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Abstract PDF: We report a case about successful surgical treatment of a granular cell tumor in the ascending colon. A 36-year-old man underwent screening colonoscopy. An endoscopic examination revealed a 10-mm yellowish and hemispheric mass in the ascending colon, and lower endoscopic ultrasonography revealed a hypoechoic-to-isoechoic mass invaded the submucosal layer. The mass was suspected to be a colonic carcinoid tumor. Based on the preoperative evaluation, endoscopic complete resection was considered difficult. Therefore, the lesion was removed via laparoscopic right hemicolectomy. Histological examination revealed that the tumor consisted of nests of polygonal cells with abundant granular eosinophilic cytoplasm. Immunohistochemical staining revealed diffuse positivity for S100 and CD68. Therefore, the tumor was diagnosed as a granular cell tumor. We suggest that surgical resection should be considered if it is located in the thin-walled ascending colon prone to perforation, difficult to rule out malignant tumor due to submucosal invasion, or to remove endoscopically.

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