PMC3002418_01
A 12-year-old boy with circumscribed alopecic patch on the scalp
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Physical examination revealed a soft 4 x 4 cm skin colored mass with mild tenderness on the occipital scalp [Figure 1].
Close-up view of the lesion on shaving the scalp. There were no bony depressions; however, the mass had a bag of worms feel on palpation
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Neither were there any changes in the bone around the margins of the swollen mass [Figure 2] nor was there any bruit over the mass.
Histopathology picture (10x) showing proliferation of spindle cells in the dermis with an unremarkable epidermis
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Histologic examination of the excised specimen [Figure 3] showed a typical presentation of diffuse neurofibroma involving the entire dermis and infiltrating the subcutaneous fat.
Histopathology picture (40x) showing the multiple spindleshaped cells with elongated ovoid to curved nuclei, surrounded by ecstatic blood vessels a matrix with wire like collagenous fibers
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Few ecstatic blood vessels were also found [Figure 4].