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

Am J Dermatopathol. 2017 Mar;39(3):e41-e43. doi: 10.1097/DAD.0000000000000736.

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.

Publication types

  • Case Reports

MeSH terms

  • Biomarkers, Tumor / analysis
  • Child
  • Diagnostic Errors
  • Female
  • Hair Diseases / diagnosis*
  • Hair Diseases / pathology
  • Humans
  • Immunohistochemistry
  • Lymphatic Metastasis / diagnosis*
  • Lymphatic Metastasis / pathology
  • Neoplasm Recurrence, Local / diagnosis
  • Pilomatrixoma / diagnosis*
  • Pilomatrixoma / pathology
  • Skin Neoplasms / diagnosis*
  • Skin Neoplasms / pathology

Substances

  • Biomarkers, Tumor