Renal hemangioma: diagnostic aspects and management techniques

Area of Science:

• Urology
• Radiology
• Pathology

Background:

• Renal hemangiomas are uncommon renal masses with diverse presentations.
• Distinguishing hemangiomas from renal cell carcinoma (RCC) is crucial for appropriate management.
• Hemangiomas share vascular similarities with arteriovenous malformations but differ in flow dynamics.

Observation:

• Three cases of renal hemangioma are presented.
• Two cases underwent surgical intervention, with one requiring nephroscopy for definitive diagnosis.
• One case was managed non-operatively, suggesting conservative approaches can be viable.

Findings:

• Angiography is key in differentiating renal hemangiomas from RCC, guiding treatment decisions.
• Renal hemangiomas lack the rapid pre-capillary shunting seen in arteriovenous malformations.
• Nephroscopy was utilized for diagnosis in a surgically managed case.

Implications:

• Conservative management should be considered for renal hemangiomas when confidently diagnosed via angiography.
• Avoid brush biopsies of suspected renal hemangiomas based solely on pyelographic findings before angiography.
• Accurate diagnosis through imaging and careful procedural selection is vital for optimal patient outcomes.