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Arch Dermatol. 2008;144(2):255-260.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Diagnosis: Proliferative fasciitis.

MICROSCOPIC FINDINGS AND CLINICAL COURSE

Results of histologic examination of the nodule revealed a lesion with an indistinct margin extending from the deep dermis to the fatty tissue. The nodule comprised spindle-shaped fibroblastlike cells intermingled with gangliocytelike giant cells with abundant eosinophilic cytoplasm and large nuclei with prominent nucleoli. The interstitium was primarily composed of a mucinous matrix with few collagen fibers. Typical mitoses were observed. Within 4 weeks, a spontaneous regression of all nodules was observed without any treatment; within 3 months, all the nodules completely disappeared.

DISCUSSION

Proliferative fasciitis is a rapidly growing, benign, reactive process of unknown etiology. Chung and Enzinger¹ separated proliferative fasciitis from nodular fasciitis based on the presence of basophilic, mitotically active, ganglionlike giant cells in the latter. It usually occurs inmiddle-aged adults of both sexes, particularly on the limbs,² but pediatric cases have been recently described.^3-5 Typically, lesions appear as rapidly growing, painful nodules occurring after trauma.⁶ The list . . . [Full Text of this Article]

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