title: Squamous cell carcinoma arising in mature cystic teratoma with sigmoid invasion.
abstract: Malignant transformation in a mature cystic teratoma (MCT) is rare occurring in 1.8% out of 8000 cases of MCT. The most common histological types are squamous cell carcinoma (SCC) followed by adenocarcinoma and melanoma. Clinically, these tumors are usually asymptomatic but may be discovered accidentally during gynecologic examination due to mass effect. We present cytology and histology correlation of a rare case of SCC arising in a dermoid cyst with metastasis to sigmoid.
authors.affiliation: Department of Pathology, VMMC and Safdarjung Hospital, New Delhi, India.
authors.forename: Pooja
authors.initials: P
authors.lastname: Srivastava
authors.forename: Leelavathi
authors.initials: L
authors.lastname: Dawson
authors.forename: Ashish Kumar
authors.initials: AK
authors.lastname: Mandal
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged; D010048:Ovarian Cysts / Q000473:pathology* / Q000601:surgery; D010051:Ovarian Neoplasms / Q000473:pathology* / Q000601:surgery; D011379:Prognosis; D012811:Sigmoid Neoplasms / Q000556:secondary* / Q000601:surgery; D013724:Teratoma / Q000473:pathology* / Q000601:surgery