Case Reports in Radiology / 2013 / Article / Fig 3

Case Report

A Case of Pelvic Schwannoma Presenting Prominent Eggshell-Like Calcification

Figure 3

(a) Cut surface of the tumor shows encapsulated solid mass containing multiple eggshell-like calcifications. (b) Microscopic image (HE, magnification ×100) shows palisaded arrangement of spindle-shaped cells. (c) Immunohistochemically, tumor cells are positive for S-100 protein. (d) Myxoid degeneration and hyalinization are focally seen in the tumor.

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