Trichoblastoma: management of a rare skin lesion

J Pediatr Surg. 2012 Jan;47(1):250-2. doi: 10.1016/j.jpedsurg.2011.10.068.


A 15-year-old girl presented with a 2-year history of an enlarging parietal scalp lesion. Excisional biopsy revealed trichoblastoma, a benign secondary tumor arising from a nevus sebaceous. There is no consensus in the literature about the surgical management of nevus sebaceous in children owing to the low incidence of secondary malignancy. There is a 20% lifetime risk of transformation to a soft tissue neoplasm, most of which are benign; but malignant neoplasms have also been reported. At minimum, these lesions need to be followed clinically over the patient's lifetime if left in situ. Recurrence after excision is rare.

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • Female
  • Head and Neck Neoplasms / pathology
  • Head and Neck Neoplasms / surgery*
  • Humans
  • Neoplasms, Multiple Primary / pathology
  • Neoplasms, Multiple Primary / surgery*
  • Nevus / pathology
  • Nevus / surgery*
  • Scalp Dermatoses / pathology
  • Scalp Dermatoses / surgery*
  • Skin Neoplasms / pathology
  • Skin Neoplasms / surgery*