The Conundrum of Mixed Pilomatrixoma and Basal Cell Carcinoma: A Case Report and Literature Review

Authors: Kankanamge A* and Haddad A

DOI: 10.23880/cdoaj-16000315

Volume 8, Issue 4

Abstract

Pilomatrixoma is a common tumour found most often in cutaneous or subcutaneous location on the upper half of the body of children and young adults. Basal cell carcinoma (BCC) is a very common malignant cutaneous neoplasm found most often on the face of middle age and old people. A collision of BCC and pilomatrixoma is a very rare occurrence and only two cases have been reported in the English literature [1,2]. We present a case of pilomatrixoma and basal cell carcinoma occurring on the face of an 83-year-old white female patient. We considered the possibilities of a collision tumour of BCC and pilomatrixoma, BCC originating from long standing pilomatrixoma, BCC with matrical differentiation, and pilomatrix carcinoma and favoured the former two scenarios. Pilomatrix carcinoma was excluded in view of the histological and immunohistochemical findings and the clinical presentation.

Keywords: Pilomatrixoma; Basal Cell Carcinoma; Collision Tumour; Matrical Differentiation; Pilomatrix Carcinoma

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