Trichoblastic Carcinosarcoma Arising From the Vagina: A Case Report With Comprehensive Immunophenotypic Analysis.

A 54-year-old woman presented with abdominal pain. Magnetic resonance imaging revealed an upper vaginal mass with no pelvic side wall involvement, nodal, or distant metastasis. Radical hysterectomy was performed. Histology showed trichoblastic carcinoma with hair follicle structures and malignant sarcomatous and carcinomatous components. Hair follicular differentiation was confirmed by positivity to hair follicle markers (Bcl-2, TLE1, CD56/NCAM, and TDAG51) and presence of CD10-positive trichogenic stroma. The tumor involved the vaginal muscularis only (FIGO [International Federation of Gynecology and Obstetrics] stage I) and was excised with clear margins. The patient remained disease free at 3-month follow-up. This is the first case of cutaneous-type carcinosarcoma reported in the vagina, highlighting the difference in histology, immunophenotype, and behavior compared with gynecologic carcinosarcomas.

Citation

Joshua Jing Xi Li, Joanna Ka Man Ng, Paul Cheung Lung Choi, Jacqueline Ho Sze Lee, Mei-Yung Yu. Trichoblastic Carcinosarcoma Arising From the Vagina: A Case Report With Comprehensive Immunophenotypic Analysis. International journal of surgical pathology. 2020 Jun;28(4):440-446

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PMID: 31747847

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