Primary mucinous cystadenocarcinoma of renal pelvis: A case report

We report a case of primary mucinous cystadenocarcinoma of renal pelvis which
radiologically resembled large multicystic mass in 45 years old man.
Case Presentation: The patient referred to our center with loin pain and progressive abdominal
distention from 4 years ago. In the previous published literature, four cases of mucinous
cystadenocarcinoma of renal origin have been published. Abdominal CT showed complete
replacement of left kidney by a large multiloculated cystic mass accompanied with multiple large
nephrolithiasis. Nephrectomy was performed and histopathology revealed covering of epithelium
of renal pelvis by columnar epithelium and scattered goblet cells and mucous gland.
Conclusion: Mucinous cystic neoplasms of kidney are rare entity and our case and few similar
reported cases showed that this tumor is an unique clinicopathologic renal mass that may be
classified by World Health Organization classification in the future