Imaging findings in three cases of the nodular type of muscular sarcoidosis.
OBJECTIVE
Sarcoidosis is a granulomatous multisystem disorder that may uncommonly involve muscle. We report the sonographic and MRI findings in three cases of the nodular type of muscular sarcoidosis.


CONCLUSIONS
Intramuscular hypoechoic well-defined nodules in young patients or patients with a history of sarcoidosis suggest the diagnosis of intramuscular sarcoid. MRI is useful in detecting muscle sarcoid, evaluating the extent and distribution of muscle involvement, and monitoring the patient during follow-up after steroid therapy. MRI showed nodules that were iso- or hyperintense relative to muscle on T1-weighted sequences. On T2-weighted images and STIR sequences, we observed numerous intramuscular nodules of homogeneous high signal intensity. All nodules enhanced homogeneously on contrast-enhanced T1-weighted sequences. Disappearance of all nodules was seen on follow-up sonograms and MR images after patients had received steroid therapy.
Tohme-Noun
C
C
Department of Radiology, Hôpital Tenon, 4 Rue de la Chine, Paris 75970, Cedex 20, France.
Le Breton
C
C
Sobotka
A
A
Boumenir
Z E
ZE
Milleron
B
B
Carette
M F
MF
Khalil
Antoine
A
D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009135:Muscular Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D012507:Sarcoidosis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014463:Ultrasonography