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- Title
Intra-articular ganglion cysts of the knee: clinical and MR imaging features.
- Authors
Kim, M. G.; Kim, Baek Hyun; Choi, Jung-Ah; Lee, Nam Joon; Chung, Kyoo Byung; Choi, Yun Sun; Cho, Sung Bum; Lim, Hong Chul; Kim, B H; Choi, J A; Lee, N J; Chung, K B; Choi, Y S; Cho, S B; Lim, H C
- Abstract
The purpose of this study was to present clinical and MR imaging features of intra-articular ganglion cysts of the knee. Retrospective review of 1685 consecutive medical records and MR examinations of the knee performed at three imaging centers allowed identification of 20 patients (13 men and 7 women; mean age 35 years), in whom evidence of intra-articular ganglion cyst was seen. Of the 20 ganglion cysts, 5 were found in the infrapatellar fat pad, 10 arose from the posterior cruciate ligament, and 5 from the anterior cruciate ligament. Three of five patients with ganglion cyst in the infrapatellar fat pad had a palpable mass. In 7 of 15 patients with ganglion cyst in the intercondylar notch, exacerbation of pain occurred in a squatting position. On four MR arthrographies, ganglion cysts were an intra-articular round, lobulated, low signal intensity lesion. Five cases of fat-suppressed contrast-enhanced T1-weighted SE images demonstrated peripheral thin rim enhancement. The clinical presentation of intra-articular ganglion cyst is varied according to its intra-articular location. The MR appearance of intra-articular ganglion cyst is characteristic and usually associated with the cruciate ligament or the infrapatellar fat pad. Magnetic resonance arthrography has no definite advantage over conventional MR in the evaluation of the lesion. For intra-articular ganglion cyst in the infrapatellar fat pad, fat-suppressed contrast-enhanced MR imaging could be useful, because a thin, rim-enhancing feature of intra-articular ganglion cyst allows it to be distinguished from synovial hemangioma and synovial sarcoma.
- Subjects
INTRA-articular injections; CYSTS (Pathology); KNEE; JOINTS (Anatomy); MAGNETIC resonance imaging; DIAGNOSTIC imaging
- Publication
European Radiology, 2001, Vol 11, Issue 5, p834
- ISSN
0938-7994
- Publication type
journal article
- DOI
10.1007/s003300000713