Localized pigmented villonodular synovitis presenting as a loose body following minor trauma in the knee: A case report

Hiroya Kanagawa, Yasuo Niki, Hideo Matsumoto, Naoto Kosaki, Hiroyuki Enomoto, Hideo Morioka, Yoshiaki Toyama, Yasunori Suda

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Localized pigmented villonodular synovitis (LPVS) is widely accepted to frequently develop symptoms resembling internal derangement in the knee, including limitation of motion and episodes of giving way and locking. We report the case of a 31-year-old man with LPVS displaying an unusual presentation. After sustaining a twisting injury to the knee, he suffered constant but subtle knee discomfort, sudden attacks of pain and a feeling of a loose body. Arthroscopic examination 1 month after injury revealed a freely mobile tumor in the supra-patellar pouch that was not pedunculated and displayed no soft tissue attachments to the synovium. Histological findings for the tumor were consistent with a diagnosis of LPVS. This case illustrates that LPVS may present with symptoms of a loose body after trauma to the knee.

Original languageEnglish
Pages (from-to)395-397
Number of pages3
JournalKnee
Volume14
Issue number5
DOIs
Publication statusPublished - 2007 Oct 1

Keywords

  • Hemarthrosis
  • Localized pigmented villonodular synovitis
  • Loose body

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Fingerprint Dive into the research topics of 'Localized pigmented villonodular synovitis presenting as a loose body following minor trauma in the knee: A case report'. Together they form a unique fingerprint.

Cite this