Acute myonecrosis on MRI: etiologies in an oncological cohort and assessment of interobserver variability.

Objective: To determine the etiologies of myonecrosis in oncology patients and to assess interobserver variability in interpreting its MRI features.

Materials And Methods: Pathology records in our tertiary cancer hospital were searched for proven myonecrosis, and MRIs of affected regions in those patients were identified. MRI reports that suggested myonecrosis were also identified.

Marrow visualization on renal scintigraphy: an often-overlooked finding in azotemic patients.

Unlabelled: Delayed perfusion and enhanced hepatobiliary uptake are recognized findings on (99m)Tc-mercaptoacetyltriglycine ((99m)Tc-MAG3) scintigraphy in patients with renal insufficiency. Less well appreciated is the finding of bone marrow visualization. This study was performed to determine the frequency of this sign and to try to determine its association with laboratory parameters.