2024年10月22日 · Ultrasound. Exact sonographic appearances are varied depending on individual tumor components 1. Usually is seen as a heterogeneous mass of mixed hyper- and hypoechoic components with the former primarily resulting from fatty portions. Areas of hemorrhage appear hypoechoic on ultrasonography 19.

2024年12月31日 · Ultrasound. tend to appear as hyperechoic lesions on ultrasound, located in the cortex and with beam attenuation posteriorly (in the same manner as the beam is attenuated by a fatty liver)

2023年3月10日 · Ultrasound. Fatty areas appear hyperechoic, whereas cellular components are hypoechoic. CT. Usually rounded or lobulated masses with heterogeneous appearance of predominate fat density, however overall density is higher than retroperitoneal fat as it contains hematopoietic tissue 2. Areas of high attenuation may be seen due to hemorrhage or ...

2021年2月12日 · Hepatic myelolipoma is a rare, benign fat-containing lesion of the liver, usually asymptomatic and found incidentally. Its diagnosis by imaging remains difficult because of a lack of pathognomonic signs. The definite diagnosis is by resection or biopsy.

2024年8月28日 · MRI is the modality of choice for imaging lipomas, not only to confirm the diagnosis, which is usually strongly suggested by ultrasound and CT but also to better assess for atypical features suggesting liposarcoma. Additionally, MRI is better able to demonstrate the surrounding anatomy.

2024年12月26日 · Ultrasound. hyperechoic with a partially hypoechoic rim. the rim likely represents a layer of myometrium surrounding the fatty central component 3. posterior acoustic attenuation. often poor vascularity on color Doppler examination. CT. predominantly fat-containing mass arising from uterus, typically measuring between -40 to -100 HU. well ...

2021年3月18日 · adrenal myelolipoma: most common macroscopic fat containing adrenal lesion; See also fat-containing adrenal lesions

2022年6月18日 · Histopathologic evaluation may reveal adenomatous, angiomatous, or myomatous tissue components, which may then yield a classification of "adenolipoma", "angiomyolipoma", or "myelolipoma" 5. Radiographic features. As with other lipomas, hepatic lipomas are characteristically circumscribed homogeneous lesions that appear to contain …

The typical adrenal myelolipoma has macroscopic fat-containing components. The amount of fatty component is variable, ranging from only a few small regions in an otherwise mostly soft tissue density mass. The main differential diagnosis in such …

2023年2月6日 · CT features most consistent with adrenal myelolipoma. The amount of fatty components is variable, ranging from only a few small regions in an otherwise mostly soft tissue density mass (10%) to masses made up of roughly equal components of fat and soft tissue (50%) or almost completely composed of fatty tissue (40%).