Congenital leiomyosarcoma of the scalp occurred in an 8-week-old boy. The clinical and microscopic findings conform to the criteria described by Stout and Hill as requirements for the diagnosis. The lesion measured 4×6 cm, showed minimal anaplasia, and numbered one mitosis per every four high-power fields. This patient was alive and well five years following surgical incision.
Heieck JJ, Organ CH. Leiomyosarcoma of the Scalp in a Newborn. Arch Dermatol. 1970;102(2):213–215. doi:10.1001/archderm.1970.04000080085017
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