Rapidly growing blue‐red nodule on the cheek of a 4‐year‐old boy

Dermoscopy of pilomatricoma: A case report with a review of the literature

“…A dermoscopic examination of the lesions allowed the observation of the following features: white streaks and irregular yellow-whitish structures were present in nine pilomatricomas (60%); vascular structures were identified in thirteen cases (86.66%); reddish homogeneous areas, linear-irregular vessels, and hairpin-like vessels were observed in nine cases (60%); dotted vessels in four cases (26,7%), and crown-like vessels and comma-like vessels in one case (6.7%); ulceration was observed in eight pilomatricomas (53.3%); structureless grayish-blue areas were found in five cases (33.3%); and yellowish lobules were found in two cases (13.3%) [1][2].…”

“…The patients, nine females and six males, were aged from 4 to 75 years old (mean = 37.06). Nine of the lesions (60%) were located on the face, four (26,66%) on the upper extremities (arm), and the two (13,3%) remaining were located one (6,67%) on the back and the other on the neck (6,67%) [1][2].…”

“…The diagnosis of pilomatricoma was confirmed histologically in our case and those in other reports by showing a well-circumscribed, deep-dermal or dermal-subcutaneous tumor formed by basaloid cells that gradually lost their nuclei and mingled with the eosinophilic shadow cells that showed ghosts of epithelial cells. Calcification may be seen in shadow cell regions along with a foreign-body giant-cell reaction to keratin [1,2].…”

“…The tumor was first described by Malherbe and Chenantais in 1880, who hypothesized that the lesion originated from a sebaceous gland and, therefore, they named the tumor calcifying epithelioma of sebaceous glands [2,3].…”

An ulcerated giant pilomatricoma mimicking malignancy

“…Sehr geehrte Herausgeber, ein Pilomatrixom ist ein gutartiger Hauttumor, der typischerweise als subkutaner Knoten, mit einer Größe zwischen 0,5 und 3 cm, an Kopf, Nacken oder den oberen Extremitäten auftritt [ [2,3]. Der Tumor wird häufig bei Kindern beobachtet; mehr als 60 % der Fälle treten während der ersten beiden Lebensdekaden auf [1,2].…”