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Case Reports in Obstetrics and Gynecology
Volume 2016 (2016), Article ID 6081634, 4 pages
Case Report

Intracystic Primary Squamous Cell Carcinoma of the Breast: A Challenging Diagnosis

1Gynaecology Service, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
2Pathology Service, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal

Received 29 April 2016; Revised 3 August 2016; Accepted 31 August 2016

Academic Editor: Stefan P. Renner

Copyright © 2016 Vera Ramos et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We report a case of a 36-year-old woman that presented with a painful mass in the outer quadrants of the left breast that had grown rapidly. Physical examination revealed a well circumscribed elastic mass and breast ultrasound showed a cyst measuring 26 mm with vegetation growing on the inner wall. Microscopic evaluation, after fine needle aspiration cytology (FNAC), suggested benign lesion. Tumorectomy was performed and the final diagnosis was a pure squamous cell carcinoma (SCC) of the breast. A simple mastectomy with sentinel node biopsy was performed. The histological study of the specimen revealed residual SCC and the sentinel lymph node was negative. The patient received 6 cycles of adjuvant chemotherapy and adjuvant radiotherapy. Four years later, the patient is free of disease.