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Radiology, Vol 188, 245-248, Copyright © 1993 by Radiological Society of North America

REVIEWS

Periosteal ganglia: CT and MR imaging features

IF Abdelwahab, S Kenan, G Hermann, MJ Klein and MM Lewis
Department of Radiology, Mount Sinai Medical Center, New York, NY 10029- 6574.

The imaging features of four cases of periosteal ganglia were studied. Three lesions were located over the proximal shaft of the tibia, in proximity to the pes anserinus. The fourth lesion involved the distal shaft of the ulna. Three lesions had different degrees of external cortical erosion, scalloping, and thick spicules of periosteal bone on plain radiographs. The bone adjacent to the fourth lesion was not involved. Computed tomography (CT) showed these lesions to be sharply defined soft-tissue masses abutting the periosteum. All of the lesions had the same attenuation as fluid. Magnetic resonance (MR) imaging revealed the ganglia to be sharply defined masses that were isointense compared with neighboring muscles on T1-weighted images. There was markedly increased signal intensity compared with that of fat on T2- weighted images. The signal intensity on both types of images was homogeneous. The MR imaging features were consistent with the fluid nature of the lesions. Under the appropriate clinical circumstances, the MR imaging and CT features of periosteal ganglia are diagnostic.


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Y. S. Choi, B.-S. Kim, D. H. Kim, T. J. Chun, S.-O. Yang, and K. H. Choi
Sonographic evaluation of a tibial periosteal ganglion with an intraosseous component.
J. Ultrasound Med., October 1, 2006; 25(10): 1369 - 1373.
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