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Int J Clin Exp Pathol. 2013 May 15;6(6):1187-9. Print 2013.

Cutaneous hybrid tumor composed of epidermal cyst and cystic pilomatricoma expressing p53 and high Ki-67 labeling.

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1
Department of Pathology, Shizuoka City Shimizu Hospital, Shimizu, Shizuoka, Japan. piyo0111jp@yahoo.co.jp

Abstract

Hybrid tumor composed of epidermal cyst and pilomatricoma has been reported in only four times in the English literature. Herein, a cutaneous hybrid tumor composed of epidermal cyst and cystic pilomatricoma in a 58-year-old woman was presented. The tumor was located in the scalp, and measured 1 x 1 x 1 cm. The tumor was cystic and contained atheromatous materials. Histologically, the cyst was composed of epidermal cyst (50% in area) and pilomatricoma (50% in area). The pilomatricoma was composed mostly of basophilic cells. Interestingly, the pilomatricoma element of the cyst showed immunoreactive p53 and Ki-67 (labeling=40%). In conclusion, the fifth case of hybrid tumor composed of epidermal cyst and pilomatricoma was presented.

PMID:
23696941
PMCID:
PMC3657376
[Indexed for MEDLINE]
Free PMC Article
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