Presentation
Left flank pain
Patient Data
Age: 65 years
Gender: Female
From the case:
Renal angiomyolipoma
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A 105 × 70 × 75 mm exophytic well-defined fat containing mass is noted at the posterior aspect of left kidney. Several vascular structures are also observed within.
Degenerative changes as osteophytosis are seen at the lumbar spine.
Case Discussion
Features are typical for left renal angiomyolipoma, which is a type of benign renal neoplasm encountered both sporadically and as part of a phakomatosis, most commonly tuberous sclerosis.
On CT scan images most lesions involve the cortex and demonstrate macroscopic fat (less than -20 HU).