Bilateral Renal Lymphangiectasia.

Area of Science:

• Nephrology
• Vascular Malformations
• Diagnostic Imaging

Background:

• Renal lymphangiectasia (RLM) is an exceptionally rare benign lymphatic malformation of the kidney.
• It is frequently misdiagnosed as other cystic renal masses, particularly polycystic kidney disease.
• While often an incidental finding, undiagnosed RLM can lead to significant renal complications.

Observation:

• We present a case of an adult male with asymptomatic, bilateral RLM.
• The condition was incidentally detected during a routine ultrasound examination.
• Further confirmation was achieved through CT-scan imaging and laboratory analysis of aspirated fluid.

Findings:

• The case confirms RLM as a rare entity that can be asymptomatic.
• Diagnostic imaging (ultrasound and CT) plays a crucial role in identifying RLM.
• Conservative management was deemed appropriate for this asymptomatic patient.

Implications:

• Accurate differentiation of RLM from other cystic renal masses is critical for appropriate patient management.
• Early diagnosis can prevent potential complications such as hypertension and renal failure.
• This case underscores the importance of recognizing RLM in adult patients presenting with incidental cystic renal findings.