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A Journal on Dermatology

Journal of Istituto Dermatologico San Gallicano
Official Journal of the Associazione Dermatologi Ospedalieri Italiani - A.D.O.I.
Indexed/Abstracted in: EMBASE, Scopus



Esperienze Dermatologiche 2013 March;15(1):23-6

language: Italian

Pilomatrixoma: often only a postoperative diagnosis

Peccerillo F. 1, Di Caterino P. 1, Pitruzzella D. 1, Battarra V. C. 1, Boccia L. 2

1 UOSD Dermatologia Oncologica e Chirurgia delle Neoformazioni Cutanee, Azienda Ospedaliera “Sant’Anna e San Sebastiano” di Caserta;
2 AORN Dermatologia Caserta, Caserta, Italia


A pilomatrixoma is a benign subcutaneous tumor that arises from the cutaneous adnexa and usually affects children, appearing as a single and asymptomatic nodule, localized most often on the face, rarely on the trunk and neck. On ultrasonography pilomatrixoma presents hypoechoic features with irregular echotexture structures due to calcifications. The most frequent pilomatrixoma’s dermoscopic pattern is characterized by irregular white structures and polymorphic atypical vessels, even though not specifical. The diagnostic gold standard is biopsy. The preoperative diagnosis based on clinical suspicion, dermoscopy and ultrasound, should always be confirmed histologically after surgical excision of the lesion.

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