| Case 197 | Surgical Pathology Case |
| CLINICAL INFORMATION | ||
| 60-year-old male with two month history of abdominal pain. Radiograph showed a retroperitoneal cystic mass encasing the right kidney. | ||
| GROSS DESCRIPTION | ||
| The 1654 gram 29 × 16 × 8.0 cm composite resection specimen included the right kidney and a 15.5 × 15.0 × 6.5 cm partially necrotic gray-tan mass that invaded the lower pole of the kidney. | ||
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| HE, 10× | HE, 10× | |
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| HE, 20× | HE, 20× | |
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| HE, 20× | HE, 40× | |
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| HE, 40× | HE, 40× | |
| Source: Department of Pathology, Creighton University Medical Center, Omaha, NE Photo: Zenggang Pan Discussion: Zenggang Pan | ||