Fig. 1From: Primary synovial sarcoma of the kidney: a case report of complete pathological response at a Lebanese tertiary care centerPartially necrotic, densely cellular proliferation with a prominent perivascular growth pattern (a, H&E stain, 40×). Tumor cells are essentially spindle in appearance (b, H&E stain, 400×), and express vimentin (not shown), focal keratin (not shown), BCL-2 (c, 400×), and CD56 (d, 100×)Back to article page