Pigmented Villonodular Synovitis (PVNS)

PVNS is an overgrowth of the joint lining that can cause swelling, pain, and stiffness in the knee.

This page covers causes, symptoms, diagnosis, treatment options, medications, surgical approaches, and recovery guidance related to pigmented villonodular synovitis (pvns).

Quick Facts

Focus	Details
Condition Type	Synovial
Common Symptoms	Persistent swelling, Pain, Stiffness
Typical Diagnosis	Imaging (MRI) and clinical exam, Sometimes biopsy
Common Treatments	Observation if symptoms are mild, NSAIDs for symptom control

Causes and Risk Factors

Causes

Abnormal synovial tissue growth or inflammation

Risk Factors

Prior joint injury
Unknown or idiopathic factors

Symptoms and Signs

Persistent swelling
Pain
Stiffness

Diagnosis

Imaging (MRI) and clinical exam
Sometimes biopsy

Treatment Overview

Focus	Details
Non-Surgical Care	Observation if symptoms are mild
Medications	NSAIDs for symptom control
Injections	Corticosteroid injection in selected cases
Surgical Options	Synovectomy, Treatment of joint damage if present

Self-Care and Recovery

Activity modification during flares

Possible Complications

Recurrent swelling
Cartilage damage over time

FAQs

What is Pigmented Villonodular Synovitis (PVNS)?

PVNS is an overgrowth of the joint lining that can cause swelling, pain, and stiffness in the knee.

What symptoms are common?

Persistent swelling, Pain, Stiffness.

How is it diagnosed?

Imaging (MRI) and clinical exam, Sometimes biopsy.

What treatments are used?

Observation if symptoms are mild, NSAIDs for symptom control, Synovectomy, Treatment of joint damage if present.

When should I seek care?

Seek care for severe pain, swelling, fever, or inability to bear weight, or if symptoms persist despite self-care.