Anetodermic pilomatricoma: report of three cases

Utility of Ultrasound in a Rapidly Growing Cutaneous Nodule in an Infant

“…Clinically, it is characterized by atrophic, wrinkled, pseudoblisterous, or bulla-like changes of the skin overlying the tumor. 3 Preceding mechanical trauma at the site of occurrence of the tumor has been reported, as is the case in our patient. It would lead to the disruption of the dermal integrity and cutaneous microcirculation responsible of the clinical appearance of the tumor.…”

Rapidly growing nodule in an adolescent girl

“…Anetodermic pilomatricomas, also known as lymphangiectatic pilomatricomas, are a rare variant of pilomatricoma with a bullous or keloid‐like appearance . They occur most frequently on the upper arms and shoulders . As with other variants of pilomatricomas, they usually arise before the age of 30 and occur more frequently in women and girls than boys and men …”

“…Anetodermic pilomatricomas may show loss of elastic tissue on histopathology, as well as dilation of lymphatic vessels in the dermis . Dermal edema may also be seen, which is sometimes associated with presence of mast cells . Because of these unique histopathology features, various theories have been suggested regarding the underlying causes of anetodermic pilomatricomas.…”

Dermoscopic and Immunohistochemical Observations in Anetodermic Pilomatricoma: A Case Report

“…Pilomatricoma, or calcifying epithelioma of Malherbe, is a benign cutaneous neoplasm originating from hair matrix cells. Anetodermic, pseudobullous, or lymph angiectatic pilomatricoma is a rare variant, and, to-date, approximately 30 cases have been reported (1)(2)(3)(4)(5). Although dermoscopy is helpful to diagnose non-anetodermic pilomatricoma (6)(7)(8)(9), its application has been documented in only one case of anetodermic pilomatricoma (1).…”