Department of Radiology, Asahikawa Medical University
MRI, Muscle ultrasonography, Sarcoidosis
The nodule in the muscle of a patient with muscular sarcoidosis was examined by US, CT, MRI, 67Ga scintigraphy, and five
characteristics of the images were noted: There were (1) long nodules along muscle fibers, (2) a bright star in the short axial
sonograms, (3) a dark star in the axial MR images, (4) three stripes in the long axial sonograms and coronal MR images, and
(5) long lesions with increased radionuclide uptake in the 67Ga scintigram. Because of its relatively specific findings, ultrasound
is the method of first choice for examining patients with muscular sarcoidosis of the nodular type.