Aggressive Angiomyolipomas: the Clandestine Epithelioid Variant

Area of Science:

• Nephrology
• Oncology
• Pathology

Background:

• Epithelioid angiomyolipoma is a rare kidney neoplasm.
• It is considered a variant of classical angiomyolipoma, a benign tumor.

Observation:

• Case reports indicate epithelioid angiomyolipoma possesses malignant potential.
• Metastasis, both loco-regional and distant, has been documented.

Findings:

• Epithelioid angiomyolipoma may exhibit a more adverse clinical course than classical angiomyolipoma.
• Distinguishing between these entities is essential for appropriate management.

Implications:

• Comprehensive histological characterization is vital for accurate diagnosis.
• Recognizing the malignant potential of epithelioid angiomyolipoma impacts clinical decision-making and prognosis.