J Korean Orthop Res Soc.  2015 Dec;18(2):87-91. 10.0000/jkors.2015.18.2.87.

Intraarticular Fibroma of the Tendon Sheath arising from the Infrapatellar Plica in the Knee

• Kim SG
• Oh TB

• KMID: 2162815
• DOI: http://doi.org/10.0000/jkors.2015.18.2.87

Abstract

A fibroma of the tendon sheath (FTS) is a rare and less well-known benign soft-tissue tumor. FTS infrequently develop in the knee region. Especially intraarticular FTS of the knee was found in a few case reports. We present a rare case of FTS arising from the infrapatellar plica of the knee in 12-year-old man without a history of specific trauma. Magnetic Resonance Imaging (MRI) and an arthroscopic examination revealed an encapsulated soft tissue mass arising from the infrapatellar plica anterior to the anterior cruciate ligament. The histological diagnosis is FTS in the intraarticular of the knee. To the best of our knowledge, this report is the first reported case of FTS involving the infrapatellar plica of the knee.

Keyword

Knee joint; Fibroma; Arthroscopic resection

MeSH Terms

Anterior Cruciate Ligament
Child
Diagnosis
Fibroma*
Humans
Knee Joint
Knee*
Magnetic Resonance Imaging
Tendons*