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November 1993

Asymptomatic Slowly Growing Tumor on the Forearm

Author Affiliations

Hospital Universitario San Carlos, Universidad Complutense, Madrid, Spain

Arch Dermatol. 1993;129(11):1510. doi:10.1001/archderm.1993.01680320145021

REPORT OF A CASE  A 32-year-old woman presented with an asymptomatic, dome-shaped, reddish nodule on the anterior aspect of her left forearm (Figure 1) that was present for 4 years. This slowly growing lesion was firm, unpainful, and elastic and was attached to the skin surface. It was easy to move over the underlying subcutaneous fat. It was surgically excised.Histopathologic findings, obtained with hematoxylin-eosin, alcian blue, and periodic acid—Schiff, are shown in Figures 2 through 4.Although the lesion was not completely excised, there was no regrowth 9 months after excision.What is your diagnosis?

Submissions  Clinicians, local and regional societies, and residents and fellows in dermatology are invited to submit quiz cases to this section. Cases should follow the established pattern and be submitted double-spaced and in triplicate. Photomicrographs and illustrations must be clear and submitted as positive color transparencies. If photomicrographs are not

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