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Abstract
To report the MRI appearance of serous atrophy of bone marrow (SABM) and analyse clinical findings and complications of SABM.A retrospective search of MRI examinations of SABM was performed. Symptoms, underlying conditions, MRI findings, delay in diagnosis and associated complications were recorded.We identified 30 patients (15 male, 15 female; mean age: 46?±?21 years) with MRI findings of SABM. Underlying conditions included anorexia nervosa (n?=?10), cachexia from malignant (n?=?5) and non-malignant (n?=?7) causes, massive weight loss after bariatric surgery (n?=?1), biliary atresia (n?=?1), AIDS (n?=?3), endocrine disorders (n?=?2) and scurvy (n?=?1). MRI showed mildly hypointense signal on T1- weighted and hyperintense signal on fat-suppressed fluid-sensitive images of affected bone marrow in all cases and similar signal abnormalities of the adjacent subcutaneous fat in 29/30 cases. Seven patients underwent repeat MRI due to initial misinterpretation of bone marrow signal as technical error. Superimposed fractures of the hips and lower extremities were common (n?=?14).SABM occurs most commonly in anorexia nervosa and cachexia. MRI findings of SABM are often misinterpreted as technical error requiring unnecessary repeat imaging. SABM is frequently associated with fractures of the lower extremities.• SABM occurs in several underlying conditions, most commonly anorexia nervosa and cachexia. • Abnormal marrow signal is often misinterpreted as technical error requiring unnecessary repeat imaging. • SABM is frequently associated with stress fractures. • Fractures in SABM can be obscured by marrow signal abnormality on MRI.
View details for DOI 10.1007/s00330-015-3692-5
View details for Web of Science ID 000359396700031
View details for PubMedID 25773942