title: Perforating pilomatricoma presenting as an ulcer in the helix of the pinna.
authors.affiliation: Department of Otorhinolaryngology and Head-Neck Surgery, Medical College and Hospital, Kolkata, India. Electronic address: duttamainak@yahoo.com.
authors.forename: Mainak
authors.initials: M
authors.lastname: Dutta
authors.affiliation: Department of Otorhinolaryngology and Head-Neck Surgery, R.G. Kar Medical College and Hospital, Kolkata, India.
authors.forename: Soumya
authors.initials: S
authors.lastname: Ghatak
authors.affiliation: Department of Otorhinolaryngology and Head-Neck Surgery, R.G. Kar Medical College and Hospital, Kolkata, India.
authors.forename: Rahul
authors.initials: R
authors.lastname: Sarkar
authors.affiliation: Department of Otorhinolaryngology and Head-Neck Surgery, R.G. Kar Medical College and Hospital, Kolkata, India.
authors.forename: Shaswati
authors.initials: S
authors.lastname: Sengupta
mesh_terms: D003951:Diagnostic Errors; D054644:Ear Auricle; D004428:Ear Neoplasms / Q000150:complications / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007627:Keloid / Q000175:diagnosis; D018296:Pilomatrixoma / Q000150:complications / Q000175:diagnosis*; D012883:Skin Ulcer / Q000209:etiology*; D055815:Young Adult