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Article
August 1986

Posttraumatic Occurrence of Infantile Digital FibromatosisA Histologic and Electron Microscopic Study

Author Affiliations

From the Departments of Dermatology, Tottori University School of Medicine, Yonago (Drs Miyamoto, Mihara, Hagari, and Shimao), and Matsue Red Cross Hospital, Matsue (Dr Nakahara), and the Kimura Dermatological Clinic, Matsue (Dr Kimura), Japan.

Arch Dermatol. 1986;122(8):915-918. doi:10.1001/archderm.1986.01660200087022
Abstract

• We encountered a patient with infantile digital fibromatosis. The representative lesion was a firm, indurated nodule, which developed in the scar of a previous injury on the skin of the left thigh of an 11-year-old girl. Electron microscopy revealed tumor cells that were strongly reminiscent of myofibroblasts. Histopathologically, the cytoplasmic inclusion bodies in the tumor cells stained posi tively or negatively with hematoxylin-eosin. Electron microscopically, they were either well-defined dense bodies that often showed a doughnutlike appearance or ill-demarcated dense bodies. Spotty calcified foci were seen in the central area of the tumor mass.

(Arch Dermatol 1986;122:915-918)

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