PMC3762041_01
Neurothekeoma: Cut section shows solid homogeneous soft, yellowish gray tissue
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F1
Gross examination of the submitted specimen revealed a firm, elastic, tan-colored smooth nodule, measuring 10 x 8 x 6 mm with a solid homogeneous gray cut surface [Figure 1].
Neurothekeoma: Tissue section shows a nonencapsulated dermal tumor, composed of multiple, medium-sized nodules composed of few oval-to-plump spindle cells, in a myxoid-rich stroma (H and E, x10)
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F2
Histopathologic examination revealed a nonencapsulated dermal tumor, composed of multiple, closely situated medium-sized nodules with scattered spindle-shaped cells in a myxoid-rich stroma [Figure 2].
Neurothekeoma: The tumor cells show strong positivity for S-100 immunohistochemical stain
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F3
The tumor exhibited strong positivity for S-100 immunohistochemical stain [Figure 3], and focal positivity for neuron-specific enolase (NSE).