Case Reports
doi: 10.1097/00004728-199203000-00023.
Renal pseudotumor due to a retained perirenal sponge: CT features
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- PMID: 1545031
- DOI: 10.1097/00004728-199203000-00023
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Case Reports
Renal pseudotumor due to a retained perirenal sponge: CT features
J Comput Assist Tomogr.
1992 Mar-Apr.
Abstract
A case of a surgically retained, encapsulated sponge presenting as an unusual cause of renal pseudotumor is described in a man who had a partial nephrectomy for renal cell carcinoma 1 year before. The nonspecific sonographic appearance of a hyperechoic renal mass and the atypical CT features of a thick-walled indeterminate mass suggested a hematoma, a hemorrhagic cyst, or a hemorrhagic neoplasm. A retained surgical sponge within a thick fibrotic capsule adhesive to the renal capsule was found at surgery.
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