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Table of Contents
Definition / general | Case reports | Gross description | Microscopic (histologic) description | Microscopic (histologic) imagesCite this page: Teratoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/colontumorteratoma.html. Accessed July 14th, 2017.
Definition / general
- Rare in colon or rectum
- Usually mature
- Excision is curative in all colonic cases of mature cystic teratoma reported to date
Case reports
- 30 year old man with mature cystic teratoma (dermoid cyst) in cecum (Arch Pathol Lab Med 2002;126:97)
- 41 year old woman with malignant teratoma associated with ulcerative colitis (Virchows Arch A Pathol Anat Histopathol 1987;411:61)
- 76 year old woman with "hairy polyp" (Endoscopy 1989;21:148)
Gross description
Dermoid cyst:
- Unilocular cyst with thin uniform wall and smooth lining, contains tan / white cheesy material that flakes away in layers
- May contain hair or teeth
Microscopic (histologic) description
Dermoid cyst:
- Cyst lined by keratinizing stratified squamous epithelium with granular tissue
- Cyst wall may contain sebaceous glands and other adnexal structures
- Variable fibrosis and smooth muscle
- No endodermal or mesodermal elements; no immature elements or atypia
Microscopic (histologic) images
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Dermoid cyst
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