PMC4014828_01
(a) Swelling in left frontal region in a 26-year-old male patient. (b) Contrast head CT scan. (c) Intraoperative finding showing soft tissue mass lesion in left frontal region. (d) Mass size 7 x 6 x 5 cm
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F1
We present a case of a 26-year-old male, who complained of headache with a raised, painless lesion on his left frontal region [Figure 1a-d] since 2.5 years before admission.
(a) Section showing spindle cells arranged in short fascicles and storiform pattern (Hematoxylin and eosin, x10). (b) Tumor cells with oval nuclei, vesicular chromatin, inconspicuous nucleoli, and scanty to moderate cytoplasm (Hematoxylin and eosin, x40). (c) Section showing tumor cells focally positive staining for Vimentin (x200). (d) Section showing tumor cells focally positive staining for CD34 (x200)
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F2
Hematoxylin and eosin stained sections showed a densely cellular and poorly circumscribed tumor in the dermis layer, comprising of interwoven bundles and fascicles of uniform spindle-shaped cells arranged in "storiform" or "cartwheel" pattern [Figure 2a and b]. The tumor cells had monotonous appearance with oval nuclei, vesicular chromatin, inconspicuous nucleoli, and scanty to moderate cytoplasm [Figure 2b]. Tumor cells were positive for both vimentin and CD-34, respectively [Figure 2c and d].