PMC3939334_01
Computed tomographic images showing a 12.2 x 8.5 x 8.2-cm well-defined, rounded, heterogeneous enhancing mass lesion with foci of calcification and necrosis medial to the right kidney and lateral to the IVC, displacing both of them and the renal vessels anteriorly.
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F1
Abdominal computed tomography and magnetic resonance imaging revealed a 12.2 x 8.5 x 8.2-cm well-defined, rounded, heterogeneous enhancing mass lesion with foci of calcification and necrosis medial to the right kidney and lateral to the inferior vena cava (IVC), displacing both of them and the renal vessels anteriorly (Figure 1 [A, B]).
The patient is placed in the left lateral position with the retroperitoneal lump marked.
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F2
The patient was placed in the left lateral position, and a transperitoneal approach was selected (Figure 2).
Diagram showing the port position, target anatomy, and patient cart position.
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F3
An assistant port was placed in the midline for suction and irrigation (Figure 3 [A, B]).
(A) Tumor being dissected off of the IVC using harmonic scalpel. (B) Tumor being dissected off of the right kidney. (C) Feeding vessels of the tumor being clipped and divided.
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F4
It was dissected from the IVC, duodenum, head of pancreas, and right kidney without any breach of tumor capsule (Figure 4 [A-C]).
Resected specimen: 13 x 9 x 7-cm well-encapsulated schwannoma.
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F5
After the dissection was completed, the tumor was extracted completely through a right flank incision (Figure 5 [A, B]).