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01-01-2009 | Test Yourself: Answer

MR features of a giant cyamella in a patient with osteoarthritis: diagnosis and discussion

Authors: Peter L. Munk, Abdulrhaman Althathlol, Faisal Rashid, David Malfair

Published in: Skeletal Radiology | Issue 1/2009

Excerpt

The cyamella is infrequently encountered in humans with only a handful of reports in the literature describing its appearance on radiographs, CT, and MRI [1, 2]. It is occasionally referred to as the popliteal fabella or the fabella distalis. It is typically located within the tendon or, occasionally, the myotendinous junction of the popliteus muscle, which runs from the lateral femoral epicondyle, posteriorly and distally to the origin of the muscle on the proximal third of the posterior face of the tibial diaphysis. Most commonly, on radiographs, it is seen in the lateral femoral groove and is usually a small, ossified structure. …

Mishra AK, Jurist KA. Symptomatic cyamella. Arthroscopy 1996; 12: 327–329.CrossRef

Akansel G, Inan N, Sarisoy HT, Anik Y, Akansel S. Popliteus muscle sesamoid bone (cyamella): appearance on radiograph, CT and MRI. Surg Radiol Anatomy 2006; 28: 642–645.CrossRef

McCarthy PH, Wood AK. Anatomical and radiological observations of the sesamoid bones of the popliteus muscle in the adult dog and cat. Anat Histol Embryol 1989; 18: 58–65.CrossRef

Le Minor JM. Brief communication: the popliteal sesamoid bone (cyamella) in primates. Am J Phys Anthropol 1992; 87: 107–110.CrossRef

Keats TE, Anderson MW. Atlas of normal roentgen variants that may simulate disease. 8th ed. Philadelphia: Mosby/Elsevier; 2007.

Pritchett JW. The incidence of fabella in osteoarthrosis of the knee. J Bone Joint Surg Am 1984; 66: 1379–1380.CrossRef

Title: MR features of a giant cyamella in a patient with osteoarthritis: diagnosis and discussion
Authors: Peter L. Munk
Abdulrhaman Althathlol
Faisal Rashid
David Malfair
Publication date: 01-01-2009
Publisher: Springer Berlin Heidelberg
Published in: Skeletal Radiology / Issue 1/2009
Print ISSN: 0364-2348
Electronic ISSN: 1432-2161
DOI: https://doi.org/10.1007/s00256-008-0581-x

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MR features of a giant cyamella in a patient with osteoarthritis: diagnosis and discussion

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