Pilar tumour of the scalp developing in hereditary sebaceous cysts.
D002294:Carcinoma, Squamous Cell / Q000209:etiology* / Q000473:pathology; D004814:Epidermal Cyst / Q000150:complications* / Q000235:genetics; D005260:Female; D006801:Humans; D008875:Middle Aged; D010375:Pedigree; D012535:Scalp / Q000473:pathology; D012878:Skin Neoplasms / Q000209:etiology* / Q000473:pathology