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What is polymyositis and dermatomyositis?

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Polymyositis and dermatomyositis are two related diseases marked by inflammation of the muscles (polymyositis) and skin (dermatomyositis). Symptoms of both diseases can include:

People with dermatomyositis may also have skin problems around the eyes and hands.

  • Muscle weakness
  • Fatigue
  • Difficulty swallowing
  • Shortness of breath
  • Fever
  • Weight loss

SOURCES:

National Jewish Health: "Undifferentiated Connective Tissue Disease (UCTD): Overview."

MedlinePlus: "Connective Tissue Disorders."

National Institute of Arthritis and Musculoskeletal and Skin Diseases: "Questions and Answers about Heritable Disorders of Connective Tissue;" "Handout on Health: Scleroderma;" and "What Are Heritable Disorders of Connective Tissue? Fast Facts: An Easy-to-Read Series of Publications for the Public."

NYU Langone Medical Center: "Ehlers-Danlos Syndrome."

Indiana University-Purdue University: "Epidermolysis Bullosa simplex, Dowling-Meara/Kobner/Weber-Cockayne types."

Cedars-Sinai: "Marfan Syndrome," "Mixed Connective Tissue Disease," "Polymyositis and Dermatomyositis."

UAB Arthritis and Musculoskeletal Center: "Questions Patients Ask."

Arthritis Foundation: "What Is Rheumatoid Arthritis?"

American College of Rheumatology: "Scleroderma (Systemic Sclerosis)."

Sjögren's Syndrome Foundation: "What Is Sjögren's Syndrome?"

Robert Wood Johnson University Hospital: "Systemic Lupus Erythematosus (Lupus)."

University of Utah Vasculitis Center: "What is Vasculitis?"

Children's Hospital of Pittsburgh: "Vasculitis."

Reviewed by Sabrina Felson on October 15, 2017

SOURCES:

National Jewish Health: "Undifferentiated Connective Tissue Disease (UCTD): Overview."

MedlinePlus: "Connective Tissue Disorders."

National Institute of Arthritis and Musculoskeletal and Skin Diseases: "Questions and Answers about Heritable Disorders of Connective Tissue;" "Handout on Health: Scleroderma;" and "What Are Heritable Disorders of Connective Tissue? Fast Facts: An Easy-to-Read Series of Publications for the Public."

NYU Langone Medical Center: "Ehlers-Danlos Syndrome."

Indiana University-Purdue University: "Epidermolysis Bullosa simplex, Dowling-Meara/Kobner/Weber-Cockayne types."

Cedars-Sinai: "Marfan Syndrome," "Mixed Connective Tissue Disease," "Polymyositis and Dermatomyositis."

UAB Arthritis and Musculoskeletal Center: "Questions Patients Ask."

Arthritis Foundation: "What Is Rheumatoid Arthritis?"

American College of Rheumatology: "Scleroderma (Systemic Sclerosis)."

Sjögren's Syndrome Foundation: "What Is Sjögren's Syndrome?"

Robert Wood Johnson University Hospital: "Systemic Lupus Erythematosus (Lupus)."

University of Utah Vasculitis Center: "What is Vasculitis?"

Children's Hospital of Pittsburgh: "Vasculitis."

Reviewed by Sabrina Felson on October 15, 2017

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