Papillary Squamous Cell Carcinoma of the Uterine Cervix : A Clinicopathologic Study of Twelve Cases

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  • 子宮頸部乳頭状扁平上皮癌の臨床病理学的検討

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Abstract

Papillary squamous cell carcinoma (PSCC) of the uterine cervix is an infrequently described subtype of cervical malignancy. Twelve cases of PSCC of the uterine cervix encountered at the Department of Gynecology of the Cancer Institute Hospital were reviewed. 1. Macroscopically, polypoid type and slightly elevated type tumors were seen in the PSCC. Polypoid type tumors tended to have a deep invasion. Slightly elevated type tumors tended to extend to the vaginal wall. 2. Histologically, PSCC had a papillary architecture with papillae that were covered by several layers of atypical cells. There were three patterns of atypical cells which, 1)resemble squamous atypical cells, 2)resemble transitional cell carcinoma of the urinary tract, 3)resemble invasive squamous cell carcinoma. A deep wedge biopsy or conization was necessary to demonstrate the invasive component. Cytological specimens were useful in diagnosing invasive squamous cell carcinoma. 3. In conclusion, PSCC of the uterine cervix is an uncommon but histologically distinctive cervical cancer. Cervical stromal invasion may be difficult to demonstrate histologically unless deep biopsies are obtained. Careful inspection is required in order to not miss the vaginal extension which is frequently noted in slightly elevated PSCC.

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