Malignant proliferating trichilemmal tumour: a case report

Malays J Pathol. 1999 Dec;21(2):117-21.

Abstract

An 86-year-old man presented with a painless, pea-sized growth over the left angle of his jaw, which had been gradually enlarging over two years. A clinical diagnosis of pilar cyst was made. Histopathological examination of the mass revealed a malignant proliferating trichilemmal tumour. During follow-up 4 months later, a palpable small upper jugular lymph node was noted at the left side of the neck. Biopsy revealed a metastatic malignant trichilemmal tumour. This case illustrates a rare malignant tumour which is a challenge to clinical diagnosis.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Aged, 80 and over
  • Cell Transformation, Neoplastic
  • Epidermal Cyst / pathology
  • Epidermal Cyst / surgery
  • Hair Follicle / pathology*
  • Humans
  • Jaw / pathology
  • Lymph Nodes / pathology
  • Lymphatic Metastasis
  • Male
  • Skin Neoplasms / pathology*
  • Skin Neoplasms / surgery