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Amy GillisGillian Lieberman, MD
Pigmented Villonodular Synovitis PVNS
Amy Gillis, Harvard Medical School Year IIIGillian Lieberman, MD
Amy GillisGillian Lieberman, MD
February 2002
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Amy GillisGillian Lieberman, MD
Our Patient• 47 year old female
• Right hip pain since age 20
• No history of trauma
• Diagnosed with DJD of R hip in 20’s
• ED visits 1/year since then for pain
Amy GillisGillian Lieberman, MD
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Amy GillisGillian Lieberman, MD
Differential Diagnosis: Nontraumatic, Monoarticular Joint
Problem: Patients 20-45• Osteoarthritis• Inflammatory Arthritis• Rheumatoid Arthritis• Psoriatic Arthritis • Septic arthritis• Systemic lupus erythematosis• Synovial chondromatosis• Pigmented villonodular synovitis• Benign/Malignant bone tumor
Frassica FJ, Bhimani MA, McCarthy EF, Wenz J. Pigmented Villonodular Synovitis of the Hip and Knee. Am Fam Physician 1999; 60(5): 1404-15.
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Amy GillisGillian Lieberman, MD
Imaging Studies for Joint Assessment
• Plain radiograph• Arthrocentesis/Arthrogram• CT• MRI
– Suggest process– Extent
• Biopsy – tissue diagnosis
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: Plain Film
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
Joint space narrowing
From BIDMC PACS
Subchondral Sclerosis
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Amy GillisGillian Lieberman, MD
Prior Dx: Degenerative Joint Disease
• Joint space narrowing• Juxtarticular sclerosis• Osteophytes• Subchondral cysts
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Amy GillisGillian Lieberman, MD
Prior Dx: Degenerative Joint Disease
• Joint space narrowing• Juxtarticular sclerosis• Osteophytes• Subchondral cysts
Is this a primary or secondary process?
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
Joint space narrowing
From BIDMC PACS
Subchondral Sclerosis
Bony erosion of lesser trochanter
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: Plain Film
Bony erosion of lesser trochanter
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Amy GillisGillian Lieberman, MD
Degenerative Joint Disease?• Remained monoarticular for years
• Recurrent visits to ED
• Bony Erosions
Pursue alternative diagnosis
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
Non uniform distribution of contrast within joint capsule
Question: Is there an ongoing process involving the capsule?From BIDMC PACS
Our Patient: Hip Arthrogram
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Amy GillisGillian Lieberman, MD
Our Patient: Joint Aspiration
• Blood tinged
• Brown fluid
• Minimal inflammatory cells
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Amy GillisGillian Lieberman, MD
DDx: blood tinged, brown fluid, minimal inflammatory cells
• Trauma• Pigmented villonodular synovitis• Bleeding disorders• Sickle cell disease• Ehler’s Danlos syndrome
•Ruddy: Kelley's Textbook of Rheumatology, 6th ed., W. B. Saunders Company, 2001.
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Amy GillisGillian Lieberman, MD
Differential Diagnosis
Joint Aspirate• Trauma• Pigmented villonodular
synovitis• Bleeding disorders• Sickle cell disease• Ehler’s Danlos syndrome
Clinical Presentation• Osteoarthritis• Inflammatory Arthritis• Rheumatoid Arthritis• Psoriatic Arthritis• SLE• Septic arthritis• Synovial chondromatosis• Pigmented villonodular
synovitis• Bone tumor
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Amy GillisGillian Lieberman, MD
Differential Diagnosis
Joint Aspirate• Trauma• Pigmented villonodular
synovitis• Bleeding disorders• Sickle cell disease• Ehler’s Danlos syndrome
Clinical Presentation• Osteoarthritis• Inflammatory Arthritis• Rheumatoid Arthritis• Psoriatic Arthritis• SLE• Septic arthritis• Synovial chondromatosis• Pigmented villonodular
synovitis• Bone tumor
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Amy GillisGillian Lieberman, MD
Pigmented Villonodular Synovitis the basics - PVNS
• “Pigmented” - contains hemosiderin• “Villonodular” - appearance of gross
specimen• Proliferative disorder of synovium• Single joint
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Amy GillisGillian Lieberman, MD
Studies – Joint Assessment
• Plain radiograph• Arthrocentesis/Arthrogram• CT• MRI
– Suggest process– Extent
• Biopsy – tissue diagnosis
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Femur
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Area of enhancement compared to surrounding soft tissue density
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Extends into the joint space
Encompasses the entire joint space
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: CT
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: CT
Distal Femur
Area of enhancement compared to surrounding soft tissue density
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Amy GillisGillian Lieberman, MD
Our Patient, CT: Impression
• Ill defined infiltrating soft tissue enhancement surrounding femoral head and neck.
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: MRI
Areas of darkness on T1 weighted image
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: MRI
Proximal areas of darkness on T1 weighted image
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: MRI
Distal areas of darkness on T1 weighted image
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Amy GillisGillian Lieberman, MD
MRI – Dark on T1
• Metal/ foreign body• Cortical Bone• Tendons• Air• Hemosiderin• Fast flowing blood
Sanders TG, Parsons TW 3rd. Radiographic imaging of musculoskeletal neoplasia. Cancer Control 2001; 8(3): 221-31.
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Amy GillisGillian Lieberman, MD
MRI – Dark on T1
• Metal/ foreign body• Cortical Bone• Tendons• Air• Hemosiderin• Fast flowing blood
Sanders TG, Parsons TW 3rd. Radiographic imaging of musculoskeletal neoplasia. Cancer Control 2001; 8(3): 221-31.
Plain film showed soft tissue density in the area of interest
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Amy GillisGillian Lieberman, MD
MRI – Dark on T1
• Metal/ foreign body• Cortical Bone• Tendons• Air• Hemosiderin• Fast flowing blood
Sanders TG, Parsons TW 3rd. Radiographic imaging of musculoskeletal neoplasia. Cancer Control 2001; 8(3): 221-31.
Plain film showed soft tissue density in the area of interest
PVNS contains hemosiderin
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: MRI with contrast
Region enhances with Gadolinium
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Amy GillisGillian Lieberman, MDAmy GillisGillian Lieberman, MD
From BIDMC PACS
Our Patient: MRI with contrast
Region enhances with Gadolinium
Increased blood flow or increased vascular permeability
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Amy GillisGillian Lieberman, MD
Our Patient: Open Biopsy – Definitive Diagnosis
• Pigmented Villonodular Synovitis
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Amy GillisGillian Lieberman, MD
Pigmented Villonodular Synovitis PVNS
• Non malignant• Proliferative disorder• Unknown cause
– Infection vs neoplasm– Clonality suggests neoplasm
• Entire synovium: joints, tendons, bursa• Single joint
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Amy GillisGillian Lieberman, MD
PVNS
• 1/500,000 per year• Age 20-45• Knee – 80%• Uncommonly > 1 joint• Tendon and bursa involvment
• Pain and swelling– Intermittent, often long standing
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Amy GillisGillian Lieberman, MD
PVNS - Pathology
• Proliferation of synovium
• Brownish villi
Image compliments of Carl Winalski, MD, Brigham and Women’s Hospital
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Amy GillisGillian Lieberman, MD
PVNS - Histology
• Fibrous stroma• Hemosiderin deposition• Histiocytic infiltrate• Giant cells
From fig 28-51. Cotran: Robbins Pathologic Basis of Disease, 6th ed., W. B. Saunders Company, 1999.
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Amy GillisGillian Lieberman, MD
PVNS - Subtypes
• Diffuse– Entire synovium
• Local– Discrete region
Images compliments of Carl Winalski,MD, Brigham and Women’s Hospital.
Patient 2
Patient 3
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Amy GillisGillian Lieberman, MD
PVNS – Radiographic Features
• Soft tissue swelling – 80%• Bony destruction• Joint space narrowing
– Later in disease– 70-75% of hip cases
• Subchondral cysts– 95% of hip cases
• No calcifications
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Amy GillisGillian Lieberman, MD
PVNS – Radiographic Features
• Soft tissue swelling – 80%• Bony destruction• Joint space narrowing
– Later in disease– 70-75% of hip cases
• Subchondral cysts– 95% of hip cases
• No calcifications
Image compliments of Carl Winalski,MD, Brigham and Women’s Hospital.
Patient 4
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Amy GillisGillian Lieberman, MD
PVNS – MRI Features
• Low –intermediate signal intensity on PD, T1 and T2 weighted images– Hemosiderin deposition
• Hyperplastic synovium– Lobulated mass
• Bone erosions• Bone density preserved
Frassica FJ, Bhimani MA, McCarthy EF, Wenz J. Pigmented Villonodular Synovitis of the Hip and Knee. Am Fam Physician 1999; 60(5): 1404-15.
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Amy GillisGillian Lieberman, MD
Dark on MRI images: Patient 5
Images compliments of Carl Winalski,MD, Brigham and Women’s Hospital.
PD T2W
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Amy GillisGillian Lieberman, MD
PVNS – MRI Features
• Blooming effect
Images compliments of Carl Winalski,MD, Brigham and Women’s Hospital.
Patient 6
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Amy GillisGillian Lieberman, MD
PVNS – Ankle: Patient 7
PD T2WImages compliments of Carl Winalski,MD, Brigham and Women’s Hospital.
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Amy GillisGillian Lieberman, MD
PVNS – Treatment Options
• Synovectomy– Local recurrence (45%)
• Radiation therapy
• Arthroplasty
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Amy GillisGillian Lieberman, MD
Image compliments of Carl Winalski,MD, Brigham and Women’s Hospital.
Patient 5 Synovectomy Post Treatment
A synovectomy was performed.
Anterior space free of disease but PVNS remains posteriorly. MRI should be obtained preop for surgical planning.
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Amy GillisGillian Lieberman, MD
Our Patient
Discussion underway weighing advantages of hip replacement versus synovectomy
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Amy GillisGillian Lieberman, MD
References• Blanco CE, Leon HO, Guthrie TB. Combined partial arthroscopic synovectomy and radiation
therapy for diffuse pigmented villonodular synovitis of the knee. Arthroscopy 2001; 17(5): 527- 531.
• Cotran: Robbins Pathologic Basis of Disease, 6th ed., W. B. Saunders Company, 1999. • Dambro: Gritffith’s 5-Minute Clinical Consult. Lippincott Williams & Wilkins, 2001.• Frassica FJ, Bhimani MA, McCarthy EF, Wenz J. Pigmented Villonodular Synovitis of the Hip
and Knee. Am Fam Physician 1999; 60(5): 1404-15.• Goldman: Cecil Textbook of Medicine, 21st ed. WB Saunders Company, 2000.• Juhl: Paul and Juhl's Essentials of Radiologic Imaging, 7th ed., Lippincott Williams &
Wilkins, 1998. • Murray RO, Jacobson HG. The Radiology of Skeletal Disorders, Churchill Livingstone, 1972.• Resnick D, Niwayama G. Diagnosis of Bone and Joint Disorders, 2nd ed., W.B. Saunders
Company, 1988.• Ruddy: Kelley's Textbook of Rheumatology, 6th ed., W. B. Saunders Company, 2001.• Sanders TG, Parsons TW 3rd. Radiographic imaging of musculoskeletal neoplasia. Cancer
Control 2001; 8(3): 221-31.
Amy GillisGillian Lieberman, MD
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Amy GillisGillian Lieberman, MD
Acknowledgements
• Daniel Saurborn, MD• Carl Winalski, MD• Larry Barbaras and Cara Lyn D’amour• Gillian Lieberman, MD• Pamela Lepkowski
Amy GillisGillian Lieberman, MD
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Amy GillisGillian Lieberman, MD
PVNS - Pathology
• Proliferation of synovium
• Brownish villi
From fig 28-50. Cotran: Robbins Pathologic Basis of Disease, 6th ed., W. B. Saunders Company, 1999.