PMC3804817_01
Computed tomographic scan imaging: mass in upper pole of left kidney.
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A computed tomographic scan imaging demonstrated an 18 cm lesion from the left kidney; no thrombus in renal vein or cava and neither regional lymph nodes or adrenal gland involved were informed (Figure 1).
Surgical specimen. Tumor in capsule of upper renal pole.
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The surgical specimen revealed a solid multinodular mass measuring 18x15 cm (Figure 2) which probably originates in the renal capsule (Figure 3).
Microscopic examination of the tumor. A) Hematoxilyn-eosin staining demostrating high-grade sarcomatoid cells. B) Immunohistochemistry showing difuse actin expression in smooth muscle fiber cytoplasm. Renal capsule (arrow).
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The surgical specimen revealed a solid multinodular mass measuring 18x15 cm (Figure 2) which probably originates in the renal capsule (Figure 3). The histopathogical examination demonstrated a renal high-grade leiomyosarcoma, which renal capsule infiltration but without extend over there (Figure 3A), and did not extend to pelvis, renal vein or adrenal gland. The immunohistochemical profile with smooth muscle actine was difusely positive (Figure 3B).