Three different dermoscopic view of three new cases with pilomatrixoma

Abstract

Pilomatrixoma is a benign soft tissue neoplasm originated from follicular matrix of hair and is also known as Malherbe's calcified epithelioma. Some lesions are located on the skin and are usually misdiagnosed. A small number of patients had been dermoscopically examined. In this article, three patients of pilomatrixoma who had three different dermoscopic views were evaluated and discussed in concordance with the literature.

Yellow and orange in cutaneous lesions: clinical and dermoscopic data

“…57 Calcification is seen in 80% of lesions, 57 and when it occurs superficially the dermatoscopy of this tumour sometimes shows yellowish lobules. 58 The presence of keratin in other tumour lesions explains that we can identify the yellow colour in dermoscopy in some seborrhoeic keratosis, actinic keratosis, keratoacanthomas, squamous cell carcinoma, Bowen's disease, inverted follicular keratosis 59 or melanocytic congenital naevus. The presence of yellowish crusts explains the yellow colour dermoscopy in other lesions as some pyogenic granulomas.…”

“…Individual tumour lobules are composed of a variable admixture of basaloid and ghost cells . Calcification is seen in 80% of lesions, and when it occurs superficially the dermatoscopy of this tumour sometimes shows yellowish lobules …”

A pregnancy pilomatricoma: an uncommon dermatologic benign neoplasm

“…Dermoscopy help to make the diagnosis, dermoscopic findings of pilomatricoma reported in the literature are yellowish-white structures together with streaks, linear irregular vessels and hairpin like vessels [3,4]. However Confirmation of diagnosis is histological.…”

Calcifying Epithelioma of Malherbe: A Rare Tumor in Unusual Location

“…It occurs most commonly in head and neck areas, especially cervical, frontal and temporal regions, eyelids and preauricular regions; although the upper extremities, trunk and lower extremities can be affected, in decreasing order of frequency [1]. Dermoscopic features of pilomatricoma reported in the literature are yellowish-white structures together with streaks, linear irregular vessels and hairpin like vessels [7,8]. Because of the low incidence and variable clinical presentation, pilomatricoma is a tumor commonly misdiagnosed [5].…”