Lipoma | Radiology Reference Article - Radiopaedia.org
2024年7月14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.
Intramuscular lipoma | Radiology Reference Article - Radiopaedia.org
Intramuscular lipomas are usually yellowish and located within muscle. They may show a capsule at the margin that can show interdigitations and muscle fibers passing through 1. Mature adipocytes irregularly infiltrate and replace muscle fibers and bundles in the infiltrative type 1.
Intramuscular Lipoma: Symptoms, Causes & Treatment - Cleveland Clinic
2022年7月29日 · An intramuscular lipoma is a rare noncancerous (benign) tumor that forms deep inside a muscle. Tumors that don’t cause symptoms rarely require treatment. Your provider may remove a large intramuscular lipoma that pinches nerves, causes nerve pain or muscle cramps — or forms an unsightly bump under the skin.
Intramuscular lipomas: Large and deep benign lumps not to be ...
2013年11月1日 · In 14 cases (27%) we obtained ultrasound scans, suggesting a diagnosis of lipoma (13 cases) and 1 hemangioma. In all cases we obtained an MRI scan of the tumor region in the habitual sequences with gadolinium injection in 16 patients.
Ultrasound of muscle | Imaging | Oxford Academic
2002年6月1日 · Ultrasound examination of muscle is ideally performed with high-frequency linear array transducers, although low frequency probes may be required for deep-seated abnormalities in large individuals. Extended field of view imaging is useful to delineate extensive muscle abnormalities and helps provide clear representation of spatial relationships.
Lipoma and Atypical Lipomatous Tumors - OrthoInfo - AAOS
Intramuscular lipoma (fatty tumor that occurs within a muscle) Atypical lipomatous tumor (ALT) (deeper fat with a larger number of cells that can look atypical under the microscope. Doctors can use a specific genetic test called MDM2 to confirm the diagnosis.)
Ultrasound of palpable lesions: a pictorial review
2024年5月20日 · Ultrasound of a palpable nodule in the right anterolateral lower calf demonstrates a focal muscular protrusion with fascial defect (calipers) consistent with muscle hernia. The hernia was more conspicuous in the standing than the supine position and when the patient flexed the underlying muscle
Soft-Tissue Masses: Optimal Imaging Protocol and Reporting
2013年8月23日 · Evaluation of any lipoma includes searching for small nodules or thickened septa within the lesion; these increase the probability of the lesion being a well-differentiated liposarcoma. However, the radiologist should beware of intramuscular lipoma, which may infiltrate muscle fibers occasionally, mimicking nodules.
Ultrasound features of deep-seated lipomas - PMC - PubMed …
Grey-scale, panoramic ultrasound view demonstrating different echogenicities of the subfascial lipomas (L) relative to the echogenicities of the adjacent muscles. a Hyperechoic; b hypoechoic; c mixed echogenicity relative to adjacent muscles.
Ultrasonography of Superficial Soft-Tissue Masses: Society of ...
2022年4月12日 · Differential diagnoses include asymmetric fat deposition (non-neoplastic), which can be distinguished from lipomas by lack of a pseudocapsule. A variant of a lipoma is an angiolipoma, which tends to be more hyperechoic, heterogeneous, and vascular, and is more likely to be painful.