PMC3576383_01
Computed tomography (CT) scan of the head and neck revealing a mass in the right parotid region. (A) Seven months previously: The mass is ~4x2.5 cm and is accompanied by a slightly osteolytic destruction of the right mandibular branch. (B) At present: The enlarged mass is ~12.5 cm and is accompanied by serious osteolytic destruction of the right mandibular branch.
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The head and neck computed tomography (CT) scan revealed a 4x2.5-cm mass in the right parotid region accompanied by an osteolytic destruction of the right mandibular branch (Fig. 1A). The CT scan revealed that the masses in the right parotid region and the right iliac area had enlarged to 12.5 and 13.5 cm, respectively, and were accompanied by serious osteolytic destruction of the right mandibular branch and the right iliac bone, respectively (Figs. 1B and 3B).
(A) Sagittal and (B) coronal computed tomography (CT) scan demonstrating the mass of the left kidney.
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Further examination by an abdominal CT scan revealed a 6.5-cm mass in the left kidney, suggesting RCC (Fig. 2), and a mass in the right iliac area accompanied by a slightly osteolytic destruction of the right iliac bone (Fig. 3A).
Computed tomography (CT) scan of the pelvic cavity revealing a mass in the right iliac area. (A) Seven months previously: The mass is ~3 cm and is accompanied with a slightly osteolytic destruction of the right iliac bone. (B) At present: The enlarged mass is ~13.5 cm and is accompanied with a serious osteolytic destruction of the right iliac bone.
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The CT scan revealed that the masses in the right parotid region and the right iliac area had enlarged to 12.5 and 13.5 cm, respectively, and were accompanied by serious osteolytic destruction of the right mandibular branch and the right iliac bone, respectively (Figs. 1B and 3B).
Histological analysis revealed a typical morphology of a middle-grade (grade 2) clear-cell renal cell carcinoma, which confirmed the patient's tumor to be a primary neoplasm. Hematoxylin and esosin (H&E); magnification, x1,000.
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The histological analysis revealed a renal clear cell carcinoma (Fig. 4) and confirmed the renal tumor to be the primary neoplasm.
Ball-like mass in the right parotid region.
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On physical examination, positive findings consisted of a firm mass measuring ~12x13 cm in the parotid region (Fig. 5).