2024年5月15日 · Ultrasound. typically well-defined hyperechoic lesions. a small proportion (10%) are hypoechoic, which may be due to a background of hepatic steatosis, where the liver parenchyma itself is of increased echogenicity. color Doppler: may show peripheral feeding vessels contrast-enhanced ultrasound

2024年11月16日 · Hemangiomas are typically well-defined, lobulated and heterogeneous with no features of local invasion. While many sequences show a rather heterogeneous signal intensity "mass", certain signal characteristics tend to dominate.

2023年7月15日 · Hemangiomas are benign tumors of vascular origin, usually seen in early childhood. Though many types exist according to the ISSVA classification, the most common are by far infantile hemangiomas. Other types include congenital hemangiomas, spindle-cell hemangiomas, epithelioid hemangiomas and intramuscular hemangiomas. Terminology

2023年7月15日 · Infantile hemangiomas are predominantly superficial soft-tissue lesions and thus can be easily assessed by ultrasound. They present as an echogenic well-defined mass that may exhibit prominent internal vascularity on color Doppler 1 .

2024年7月23日 · A hyperechoic liver lesion on ultrasound can arise from a number of entities, both benign and malignant. A benign hepatic hemangioma is the most common entity encountered, but in patients with atypical findings or risk …

2024年1月11日 · Ultrasound. On grayscale ultrasound, giant hepatic hemangiomas present as a heterogeneous mass 3,8. CT Giant hemangiomas may demonstrate similar findings to their smaller relatives, although findings are less consistent. On non-contrast scans, the lesions are usually heterogeneously hypoattenuating masses with marked central areas of low ...

2023年5月9日 · Ultrasound Hemangiomas can have a variety of sonographic appearances depending on their exact histological composition (i.e. hypo, iso or hyperechoic). The dominant pattern, however, is considered to be a homogeneous echotexture that is predominantly hyperechoic 11 .

Patel M Soft tissue hemangioma. Case study, Radiopaedia.org (Accessed on 03 Feb 2025) https://doi.org/10.53347/rID-19301

2024年7月2日 · Ultrasound. On ultrasound intramuscular hemangiomas are described as hypoechoic or isoechoic lesions 2, but they can also be hyperechoic relative to skeletal muscle (as in cases 1, 2 and 4 of this article). Contrary to venous malformations, they are not compressible with pressure on the probe.

Left scalp lesion in supra-orbital region with imaging features suggesting infantile hemangioma. Typically it appears as a slowly growing mass lesion with delayed homogeneous post-contrast enhancement.