title: Pilomatricoma: Sonographic features.
abstract: Pilomatricomas (also known as calcifying epitheliomas of Malherbe) are benign subcutaneous tumors that arise from the cutaneous adnexa and usually affect young subjects. They typically present as solitary asymptomatic nodules located in most cases on the face or neck. On ultrasonography, pilomatricomas appear as hypoechoic lesions with inhomogeneous echo structures, well-defined margins, and posterior shadowing. Color Doppler generally reveals a single artery that penetrates the lesion and gives rise to multiple intralesional branches. Diagnosis is based on clinical and histological findings. The authors present a typical case of pilomatricoma diagnosed on the basis of clinical and sonographic findings that were subsequently confirmed by histology.
authors: Institute of Radiology, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy.
authors: E
authors: E
authors: Garioni
authors: G M
authors: GM
authors: Danesino
authors: L
authors: L
authors: Madonia
keywords: Color Doppler; Pilomatricoma; Ultrasonography
references: Pediatr Radiol. 2007 Jun;37(6):549-55
references: 17437094
references: J Ultrasound Med. 2005 Oct;24(10):1397-402
references: 16179624
references: Dermatol Surg. 2002 Jul;28(7):603-5
references: 12135516
references: Dermatol Surg. 2007 Mar;33(3):340-3
references: 17338693
references: Pediatr Dermatol. 1999 Sep-Oct;16(5):341-4
references: 10571829