• Of 150 cases of pilomatricoma in Columbus (Ohio) Children's Hospital, nearly 45% were discovered before the age of 5 years and 80% were present by 10 years of age. Lesions involved the periorbital region in 17% of the cases; the upper lid and brow were involved most frequently. These lesions were frequently misdiagnosed: only two of the periorbital cases were correctly diagnosed prior to excisional biopsy.
Orlando RG, Rogers GL, Bremer DL. Pilomatricoma in a Pediatric Hospital. Arch Ophthalmol. 1983;101(8):1209–1210. doi:10.1001/archopht.1983.01040020211008