To highlight the imaging characteristics of angiomyolipomas(AMLs) as isolated form or part of the tuberous sclerosis complex(TSC). To list the imaging diagnostic clues for distinguishing AMLs from other renal tumors. To present the role of interventional radiologist for the treatment of hemorrhagic complications.
Definition: AML is a solid benign tumor composed of varying proportions of adipose tissue,
smooth muscle and abnormal blood vessels. Epidemiology: AMLs are more frequent in woman than in man(4:1) with a peak of incidence between the fourth-sixth decades of life. Clinic: Most commonly AMLs are asymptomatic,
but lesions>4cm can present with retroperitoneal hemorrhage due to tumor rupture and severe symptoms as: anemia hematuria flank pain palpable mass renal failure Histology: Although once...
Findings and procedure details
A.IMAGING TECHNIQUE 1.US using curvilinear abdominal probe,
frequency 2-7MHz and color Doppler technique. 2.T he CT protocol: non-enhanced CT(NECT)-5mm slice thickness; triphasic contrast-enhanced CT(CECT) with MPR: - corticomedullary phase(25-40 seconds delay), - nephrographic(80-90 seconds delay), - excretory phase(240-300 seconds delay) 1,5ml/kg body weight of iodinated CM(370 mg iodine/ml) 3.MRI performed with a 1.5-T system during an end-expiratory breath hold using: -axial T1-w...
Knowing the current classification types of AMLs,
imaging appearance and proper imaging technique helps in both diagnosis and treatment. Although the presence of fat attenuation is well-established diagnostic imaging,
sometimes AML exhibits atypical findings with fat-poor content overlapping with the appearance of other renal tumors. Therefore,
it is imperative to meticulously evaluate all solid renal masses for the presence of fat to avoid recommending surgical excision of an angiomyolipoma.
MiaMadalina Ifrosa mail:firstname.lastname@example.org Prof.Dr.Ioana G.Lupescu mail: email@example.com Radiology,
Medical Imaging and Interventional Radiology Department Fundeni Clinical Institute.
UMPh Carol Davila,
Aydin H et al.
Clinical correlates of renal angiomyolipoma subtypes in 209 patients: classic,
tuberous sclerosis associated and epithelioid.
Sauter G et al.
IA World Health Organization classification of tumors: pathology and genetics.
Tumors of the urinary system and male genital organs.
Lyon: IARC Press,2004;
Silverman SG et al.
Diagnosis of renal angiomyolipomas: classic,
and epithelioid types.
Semin Ultrasound CT...