UNASSIGNED: Obective: To describe the characteristic magnetic resonance (MR) imaging appearance of squatting-induced @entity5925 involving the thigh muslces. METHODS: This study consisted of 10 cases obtained at three institutions from 2005 to 2015. A retrospective review was performed to obtain clinical information and MR scans for @entity5925 of the thigh muscles. MR imaging was analyzed according to the distribution and degree of muscle involvement; the degree was assessed and graded as normal, mild or prominent. RESULTS: The mean @entity1 age was 20.2 years (range, 15-24 years), and seven of the ten @entity1 were male. All @entity1 had history of excessive squatting action, suffered clinically from bilateral thigh pain, and were confirmed to have @entity5925 through analysis of serum @entity908 kinase (CK) levels. All of the @entity1 (10/10) exhibited diffuse mild to prominent degree involvement of the anterior thigh muscles according to fluid-sensitive MR sequences. Among the anterior thigh muscles, the rectus femoris was spared in 8 @entity1 (8/10) and mild degree involved in 2 @entity1 (2/10). Thus, no cases exhibited prominent degree involvement of the rectus femoris muscle. CONCLUSIONS: Preservation of the rectus femoris muscle on MR imaging in squatting-induced @entity5925 may be useful for differentiating @entity5925 from other etiologies. Advances in knowledge: Preservation of rectus femoris on MR imaging is distinguishable finding in squatting-induced @entity5925 and reflects the functional anatomy of anterior thigh muscles.

Characteristic MR Image Finding of Squatting Exercise-induced XXXX of the Thigh Muscles.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity5925 :: ('MESH:D012206', 'Disease') :: ['rhabdomyolysis'] @entity908 :: ('MESH:D003401', 'Chemical') :: ['creatine']
@entity5925 :: (MESH:D012206,Disease) :: ['Rhabdomyolysis']
