The Hairy Polyp: a Benign Teratoma of the Colon

Mauer, Kenneth; Waye, Jerome D.; Lewis, Blair S.; Szporn, Arnold H.

doi:10.1055/s-2007-1012926

Cited by 4 publications

(6 citation statements)

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“…Though documented in literature, teratomas of the gastrointestinal tracts are rare lesions( 2 , 4 ). Most of the teratomas diagnosed in the gastrointestinal tract have been of the stomach.…”

Section: Discussionmentioning

confidence: 99%

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Mature Solid Teratoma of the Retroperitoneum Presenting as Sigmoid Colon Polyp with Lower Gastrointestinal Bleeding: A Case Report

Onyishi

Lebbie

Sesay

et al. 2022

Ethiop J Health Sci

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Background: Mature colonic teratomas are rare tumors and no case, to the best of our knowledge, has been reported from the African continent. In addition, some pedunculated teratomas in the colon have been treated by endoscopic polypectomy and classified as primary teratoma of the colon. We report a case of a distinct intra sigmoid pedunculated teratoma originating from the retroperitoneum of a 4-year-old African girl and we highlight the potential for misclassification of primary origin of endoscopically removed polypoid teratomas in the colon. Case Presentation: A 4 year-old black African female child who presented with abdominal pain and hematochezia. On clinical assessment, she was found to be anaemic and to have a sigmoid colon mass. At surgery, there was a mobile mass within the lumen of sigmoid colon and the mass was fixed to the retroperitoneum by a stalk of tissue. Pathologist’s review of the resected sigmoid segment showed a pedunculated intra-sigmoid mass with the stalk traversing the wall of the colon. The mass was histologically proven a mature solid teratoma. Conclusion: This, to the best of our knowledge, is the first report of intra sigmoid teratoma from the African continent. It highlights the potential for misclassification of endoscopically resected colonic teratomas.

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Section: Discussionmentioning

confidence: 99%

“…Along the gastrointestinal tract, the stomach has been found the most common location of teratomas ( 1 , 2 ). Extremely rare are teratomas of the sigmoid colon of which there are few featured case reports ( 4 ). A thorough literature search returned no reported case in Africa.…”

Section: Introductionmentioning

confidence: 99%

Mature Solid Teratoma of the Retroperitoneum Presenting as Sigmoid Colon Polyp with Lower Gastrointestinal Bleeding: A Case Report

Onyishi

Lebbie

Sesay

et al. 2022

Ethiop J Health Sci

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“…[6][7][8][9][10][11] Most teratomas encountered within the gastrointestinal tract arise within the intestinal wall, in the muscularis layer or the submucosal layer. 10 In our case, teratoma was demonstrated as a polypoid mass in the wall of sigmoid colon, protruding to both serosal and mucosal surfaces. During embryogenesis, germ cells migrate in a path from the endoderm of yolk sac to the dorsal mesentery of the hindgut, and rests of totipotential cells may theoretically become sequestered along this path.…”

Section: Discussionmentioning

confidence: 99%

“…Teratomas are properly assigned to the group of neoplastic polyps because of their capability for developing malignancy. 9,10 In conclusion, teratoma cannot be diagnosed on the basis of clinical findings alone, since the histopathologic confirmation is necessary. In addition, physicians should keep in mind that mature cystic teratomas located in the intestinal wall can easily mimic a cystic ovarian lesion on radiologic examination, as in our case.…”

Section: Discussionmentioning

confidence: 99%

Teratoma of Sigmoid Colon Mimicking Ovarian Cystic Lesion: Case Report

Karahan¹,

Devrim²,

Bozkurt³

et al. 2012

Turkiye Klinikleri J Med Sci

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A AB BS ST TR RA AC CT T Teratoma is a germ cell tumor and usually consists of three germ layers. Teratomas are mostly located in the gonads and occurrence of teratoma in extragonadal sites israre. Gastrointestinal tract, particularly colon, is an unusual extragonadal site for teratomas. Extragonadal teratomas arise from totipotent cells in sequestered primitive cell rests. Teratoma cannot be diagnosed on the basis of clinical findings alone, since the histopathologic confirmation is necessary. Cystic teratomas, located in the wall of colon can easily mimic ovarian lesions on radiologic examination. In this case report, we aimed to describe the histopathological findings of an unusual case of mature teratoma in the wall of sigmoid colon which was mimicking an ovarian cystic lesion on radiologic examination.K Ke ey y W Wo or rd ds s: : Teratoma; colon, sigmoid; pathology Ö ÖZ ZE ET T Teratom bir germ hücreli tümördür ve genellikle üç germ tabakasından oluşur. Teratomlar çoğunlukla gonadlarda yer alırlar ve ekstragonadal bölgelerde teratom oluşumu nadir görülen bir durumdur. Gastrointestinal sistem, özellikle de kolon, teratom oluşumu için alışılmadık bir ekstragonadal bölgedir. Ekstragonadal teratomlar ayrılmış primitif hücre serilerindeki totipotent hücrelerden köken alırlar. Teratom tanısı klinik bulgulara dayandırılamaz, aynı zamanda histopatolojik inceleme de gereklidir. Kolon duvarında yerleşik kistik teratomlar radyolojik muayenede over lezyonlarını taklit edebilir. Bu yazıda radyolojik incelemede over kistini taklit eden ve nadir bir lokalizasyon olarak sigmoid kolon duvarında yerleşim gösteren matür bir teratomun histopatolojik bulgularını tanımlamak amaçlanmıştır.

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“…It is important to distin− guish between primary rectal teratomas and protruding ovarian teratomas. The majority of primary rectal teratomas fea− ture pedunculated polyps protruding into the rectal lumen which have arisen as a result of the peristaltic movement of the bowel [3], and can be removed endoscop− ically [4]. A pedunculated polyp extend− ing into the rectum from an ovarian tera− toma is an extremely rare occurrence and one which requires surgical treatment.…”

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confidence: 99%

Ovarian teratoma presenting as a pedunculated polyp at colonoscopy

Park

Park²,

Kim³

et al. 2006

Endoscopy

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A 41−year−old woman (gravida 2, para 2) was admitted to hospital with intermit− tent abdominal pain which she experi− enced during defecation. Her medical his− tory was uneventful. Colonoscopy re− vealed a hyperemic, polypoid mass with a stalk, 15 cm from the anal verge ( Fig− ure 1); computed tomography revealed a right ovarian mass that was continuous with the intraluminal lesion in the sig− moid colon. At surgery, a right ovarian mass was identified which was adhering to the sigmoid colon and to the pelvic peritoneum on the right side. Right sal− pingo−oophorectomy and an anterior re− section with a colorectal anastomosis were performed. The resected specimen included a pedunculated polyp of the sig− moid colon, which was continuous with an ovarian mass (Figure 2). The length of the polyp stalk was 1.8 cm. The pathologi− cal diagnosis was a benign mature cystic teratoma which had ruptured, leading to the formation of a colonic fistula, and which had subsequently protruded into the colonic lumen. The patient had no postoperative complications and was dis− charged from hospital 8 days after the op− eration.The complications of ovarian teratoma in− clude torsion, rupture, infection, and ma− lignant change [1]. The rupture of an ovar− ian teratoma into an adjacent hollow vis− cus is a rare complication. Previously re− ported endoscopic examinations of tera− tomas that have ruptured into the adja− cent colon have revealed the presence of hair or teeth in the mass and polypoid masses extending into the rectum [2]. In the present case a right ovarian teratoma had ruptured into the colon and appeared as a pedunculated polyp on colonoscopy examination. It is important to distin− guish between primary rectal teratomas and protruding ovarian teratomas. The majority of primary rectal teratomas fea− ture pedunculated polyps protruding into the rectal lumen which have arisen as a result of the peristaltic movement of the bowel [3], and can be removed endoscop− ically [4]. A pedunculated polyp extend− ing into the rectum from an ovarian tera− toma is an extremely rare occurrence and one which requires surgical treatment.

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The Hairy Polyp: a Benign Teratoma of the Colon

Cited by 4 publications

References 0 publications

Mature Solid Teratoma of the Retroperitoneum Presenting as Sigmoid Colon Polyp with Lower Gastrointestinal Bleeding: A Case Report

Mature Solid Teratoma of the Retroperitoneum Presenting as Sigmoid Colon Polyp with Lower Gastrointestinal Bleeding: A Case Report

Teratoma of Sigmoid Colon Mimicking Ovarian Cystic Lesion: Case Report

Ovarian teratoma presenting as a pedunculated polyp at colonoscopy

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