J Korean Bone Joint Tumor Soc.  2014 Dec;20(2):85-88. 10.5292/jkbjts.2014.20.2.85.

A Tenosynovial Giant Cell Tumor Arising from Posterior Cruciate Ligament of Knee Joint: A Case Report

• Kim HK
• Choi CH
• Chung KJ
• Lee YM
• Shin MK
• Hwang JH

• KMID: 1799898
• DOI: http://doi.org/10.5292/jkbjts.2014.20.2.85

Abstract

Localized forms of giant cell tumor are known to arise commonly in the synovial membrane of the finger joints. Multinucleated giant cells are its characteristic pathology finding, giant cell tumor shows a low rate of recurrence after complete excision. When occurring at the knee joints, giant cell tumor manifests a wide form of symptoms, from no symptom at all, to intermittent locking. Complete excision is possible by arthroscopy, but if done incompletely, it is reported to recur in 45% of cases. We present here a case of giant cell tumor that has arisen from the anterior portion of the posterior cruciate ligament, excised by arthroscopy and followed by pathologic confirmation.

Keyword

giant cell tumor (GCT); posterior cruciate ligament (PCL); knee joint

MeSH Terms

Arthroscopy
Finger Joint
Giant Cell Tumors*
Giant Cells
Knee Joint*
Pathology
Posterior Cruciate Ligament*
Recurrence
Synovial Membrane

Figure

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  Figure 1. (A) On proton density coronal image, a 9×6 mm sized mass (white arrow) with well circumscribed intermediate signal intensity was seen lateral side of knee joint. (B) On T2 sagittal image, a 9×6 mm sized mass (white arrow) with well circumscribed intermediate signal intensity was seen just anterior margin of PCL.

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  Figure 2. The mass was visible at the anterolateral area of the PCL by arthroscope.

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  Figure 3. (A) Well defined mass with capsule shows closely packed cells (H&E, ×10). (B) Relatively closely packed medium sized polyhedral cells with giant cells is shown (H&E, ×100).

Reference

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