Childhood pilomatricomas: Associated anomalies.

Pilomatricoma is a common benign tumor in children. We present a review of the literature with the aim of helping clinicians manage these patients. A detailed review of the literature was performed in the PubMed database using an exhaustive list of Medical Subject Heading words. One thousand four hundred fifty-eight children were described in retrospective series and case reports. An associated disease was found in 32 children (2.2%), most of whom had several pilomatricomas (n = 23); 9 had a single lesion. Based on this literature review, we recommend reassuring the family and then conducting a detailed interview regarding past medical and family history and a thorough clinical examination for signs of Turner syndrome, constitutional mismatch repair deficiency, Kabuki syndrome, Steiner's myotonic dystrophy, or Gardner syndrome. Regular long-term clinical follow-up is recommended. Specific paraclinical examinations should be performed only in cases of other clinical anomalies or a positive family history. Pilomatricoma requires management because it may be associated with other potentially serious diseases, especially when multiple lesions are present.