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Related Experiment Video

Updated: May 29, 2026

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
06:15

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia

Published on: August 9, 2024

Pigmented villonodular synovitis: extrasynovial recurrence.

Christopher M Jobe1, Anwar Raza, Lee Zuckerman

  • 1Department of Orthopaedic Surgery, School of Medicine, Loma Linda University, Loma Linda, California 92354, USA. cjobe@llu.edu

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|September 6, 2011
PubMed
Summary
This summary is machine-generated.

Recurrent pigmented villonodular synovitis (PVNS) can be extrasynovial and obscured by neosynovium. Surgeons should resect periarticular fat and note nodule mobility during arthroscopy for PVNS.

Related Experiment Videos

Last Updated: May 29, 2026

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
06:15

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia

Published on: August 9, 2024

Area of Science:

  • Orthopedic Surgery
  • Musculoskeletal Oncology
  • Diagnostic Imaging

Background:

  • Pigmented villonodular synovitis (PVNS) is a rare joint tumor.
  • Recurrence of PVNS can occur after surgical resection.
  • Extrasynovial PVNS presents diagnostic challenges, particularly on imaging.

Observation:

  • Arthroscopy revealed extrasynovial recurrence of PVNS in a female athlete.
  • Nodules exhibited medial movement with joint insufflation.
  • Neosynovium obscured over 95% of the recurrent tumor, making it less prominent than on MRI.

Findings:

  • The extrasynovial location is attributed to rapid neosynovium proliferation post-resection.
  • Nodule mobility during insufflation is a key arthroscopic observation.
  • The extent of recurrence can be underestimated due to overlying neosynovium.

Implications:

  • Surgical resection of recurrent PVNS requires careful attention to extrasynovial components.
  • Resection of surrounding periarticular fat is recommended to ensure complete tumor removal.
  • Surgeons must be aware of tumor displacement with joint insufflation during arthroscopy.