Metastatic Malignant Pilomatrixoma in an 8-Year-Old Girl Misdiagnosed as a Recurrent Pilomatrixoma

Abstract: Malignant pilomatrixoma or pilomatrix carcinoma is a rare, locally aggressive malignant neoplasm, derived from the hair follicle with a high propensity for local recurrence. Only a few cases of metastatic pilomatrixoma have been described in the literature. Till date, only 17 cases have been reported in the English-language medical literature, most commonly occurring associated with local recurrence in adults. We report the first case in children of a metastatic malignant pilomatrixoma in an 8-year-old girl presenting with a recurrent pilomatrix carcinoma of the forehead with metastases in cervical and parotid lymph nodes.

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