"T1: hypointense to muscle"
"T2: hyperintense"
"T1 C+ (Gd): four different patterns have been described 10"
"The incidence is reported to be 1 in 1,000,000 and most frequently diagnosed in females (~57%) between 40-70 years 1."
"Myxomas have been reported to range in size from 1-17 cm 1,2. Intramuscular myxomas can be solitary or multiple, when multiple myxomas are present they are associated with monostotic or polyostotic fibrous dysplasia, known as Mazabraud syndrome 1,3-5."
"There may be a link with postzygotic mutations of the GNAS1 gene located on chromosome 20q13.2-q13.3, particularly when associated with Mazabraud syndrome 3-5. GNAS1 encodes the alpha subunit of G-protein (GSa) involved in cell proliferation 3-5. This mutation affects the mesenchymal precursor cells at the early stages of commitment 5."
"intra-tumoural cysts may be present in a small proportion of cases"
Expected headings
"Associations"
"Genetics"
"Signal characteristics"
"McCune-Albright syndrome: cafè-au-lait skin pigmentations and endocrine dysfunction, such as precocious puberty, diabetes mellitus, goitre and breast fibroadenomatosis 7"
"Intramuscular myxomas appear as well-demarcated, homogeneous and hypodense ovoid lesions. The soft tissue mass attenuation is higher than that of water and less than that of surrounding tissue 1. They usually show mild diffuse enhancement or peripheral and septal enhancement seen in approximately 50% of cases 1."