[Transient XXXX in magnetic resonance imaging].

@entity1 @entity63 @entity5 @entity5414 @entity4034 @entity170 @entity603 @entity572 @entity158 @entity236 @entity531 @entity130 @entity2530
This study was aimed at assessing the MR patterns of transient @entity572 and, consequently, the role of MRI in the diagnosis and follow-up of this condition. Even though this condition was originally observed in pregnant @entity1 , young or middle-aged @entity1 are most frequently affected. There is a spontaneous onset of @entity158 , usually progressing over several weeks. The @entity1 have no risk factors for @entity2530 ; they may have a history of minor @entity130 and there is a possible relationship to the third trimester of pregnancy. Laboratory values are negative. @entity158 may be severe enough to cause the @entity1 to limp and to impair joint function. The possible causes of transient @entity170 have been debated by many authors and include @entity130 , @entity603 , @entity531 and transient or reversible @entity63 . Transient @entity170 is a self-limiting disease which does not require surgical treatment. The differential diagnosis of transient @entity572 is very important because this condition may simulate @entity5 , @entity5414 , @entity4034 or @entity2530 . We report the initial and follow-up features of transient @entity572 on the MR images of 6 @entity1 (M/F = 5/1; age: 37-49 years, mean: 41.8 years). The right side was involved in 3 @entity1 , the left side in 2 @entity1 . The @entity1 with bilateral transient @entity170 was a @entity1 in the 3rd trimester of pregnancy. In all @entity1 , MRI was performed with an 0.5 T MR unit. The MR changes in our 6 @entity1 were rather uniform and included heterogeneous decrease in the signal intensity of the affected bone marrow on T1-weighted images and increased signal intensity on T2-weighted and STIR images, with no evidence of focal lesions. This pattern is known as the " @entity236 " (BME) pattern. All the @entity1 received conservative treatment. The clinical symptoms and the MR abnormalities regressed completely within 6-10 months, with no late sequelae. To conclude, this follow-up MR study demonstrates the transient, reversible @entity572 . Until the natural history of the BME pattern is better understood, we suggest a conservative management of this condition, especially in the @entity1 with no risk factors for @entity2530 . Radiographic and MR follow-up is recommended.
