Renal angiomyolipoma - tuberous sclerosis

Case contributed by Mariam Iddi Kaoneka
Diagnosis almost certain

Presentation

History of seizures.

Patient Data

Age: 40 years
Gender: Male
This study is a stack
Axial
non-contrast
This study is a stack
Axial C+
arterial phase
This study is a stack
Axial C+
delayed
This study is a stack
Axial C+ portal
venous phase
Coronal C+ portal
venous phase
Sagittal C+ portal
venous phase
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Info

Multiple lesions of varying sizes with mixed fat density and soft tissue component are seen in both kidneys. No evidence of perinephric hematoma.

Case Discussion

This is a typical case of angiomyolipomas.

The patient presented with a history of seizures from childhood, accompanied by intellectual disability and facial angiofibromas. A CT brain scan revealed multiple bilateral subependymal calcific foci, consistent with subependymal hamartomas of varying sizes. A CT abdomen was subsequently performed, showing bilateral angiomyolipomas, although the patient did not report any abdominal symptoms. Despite attending multiple dermatology and neurology clinics since childhood, a final diagnosis of tuberous sclerosis was only made at the age of 40.

While the majority of angiomyolipomas (approximately 80 percent) are sporadic, the remaining 20% are associated with phakomatoses, most notably tuberous sclerosis 1. This case underscores the importance of a multidisciplinary approach to diagnosis and management, as it can lead to a timely and accurate diagnosis, potentially preventing delayed recognition and treatment.

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