An extraneural primary anaplastic ependymoma at the subcutaneous inguinal region: Report of a rare case.
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Date
2015-10
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Abstract
Ependymomas commonly arise in the central nervous system. Extraneural
presentation is quite rare. Herein, we describe a primary extraneural ependymoma
in a young female. The mass was located in the right inguinal area. The cut
surface of the 7.5 mm × 6.5 mm × 4.5 mm sized tumor was brownish‑yellow
in color. Histologically, it was hypercellular exhibiting pseudorosette or rosette
formations and some papillary structures. Mitosis was counted as high as 10 per
10 high power fields. Neither necrosis nor vascular endothelial proliferation within
the tumor was observed. Tumor cells showed strong glial fibrillary acidic protein
immunoreactivity. On epithelial membrane antigen, intracytoplasmic dot‑like
immunostaining was observed. This is the first report presenting a primary
extraneural anaplastic ependymoma arising in the inguinal subcutaneous region.
Description
Keywords
Ependymoma, epithelial membrane antigen, extraneural tumor, glial fibrillary acidic protein, subcutaneous tumor
Citation
Sayar Hamide, Ersen Ayca, Kurtul Neslihan, Yazar Mehmet Fatih, Balakan Ozan. An extraneural primary anaplastic ependymoma at the subcutaneous inguinal region: Report of a rare case. Indian Journal of Pathology & Microbiology. 2015 Oct-Dec 58(4): 560-562.