Bilateral peripelvic fat simulating renal pelvic tumor

Area of Science:

• Nephrology
• Surgical Pathology

Background:

• Lipomas are benign adipose tumors.
• Renal lipomas can originate in the renal cortex or perirenal tissue.
• They may present as peripelvic masses, complicating diagnosis.

Observation:

• A case of excessive peripelvic fat proliferation was observed.
• This proliferation mimicked a renal pelvic tumor.
• The kidney was successfully salvaged in this rare instance.

Findings:

• The observed condition was an unusual presentation of peripelvic fat proliferation.
• Diagnostic challenges arise due to the simulation of renal pelvic tumors.
• Successful kidney salvage was achieved.

Implications:

• This case expands the differential diagnosis for peripelvic masses.
• It underscores the importance of accurate diagnosis in renal tumor evaluation.
• Highlights the potential for conservative management in specific lipoma presentations.