Inflammatory pseudotumor (IPT) is a pseudoneoplastic lesion that most commonly involves lung.
We report a case of IPT of kidney associated with hepatocellular carcinoma. CT and PET/CT showed the features of renal cell carcinoma. After radical nephrectomy, histologic examination demonstrated acute pyelonephritis associated with papillary necrosis, and IPT involving renal parenchyma and capsule. Although renal IPT is a very rare tumor, awareness of its existence in the differential diagnosis of a renal mass is critical to avoid misdiagnosis. Clinician should carefully consider differential diagnosis and complications associated with acute or chronic pyelonephritis and papillary necrosis in diabetic patients, particularly.
Written by:
Lee JH, Lee KG, Park HK, Song SY, Kim JY, Kim YH, Choi YY, Jang KS, Park MH. Are you the author?
Department of Surgery, College of Medicine, Hanyang University Medical Center, Seoul, Korea.
Reference: Clin Nucl Med. 2012 Jul;37(7):699-701.
doi: 10.1097/RLU.0b013e3182443e4d
PubMed Abstract
PMID: 22691519
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