• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Johns Hopkins Arthritis Center

Show Search
Hide Search
  • Disease Information
    • Rheumatoid Arthritis
    • Psoriatic Arthritis
    • Ankylosing Spondylitis
    • Osteoarthritis
    • Gout
    • Osteoporosis
  • Patient Corner
    • Drug Information Sheets
    • Managing Your Arthritis
    • RheumTV – Patient Education Video Library
  • Our Research
    • Patient-Centered Outcomes Research
    • Current Research Studies
    • The Camille Julia Morgan Arthritis Research and Education Fund
  • About Us
    • Appointment Information
    • Contact Us
    • Our Faculty
    • Our Staff
    • Rheumatology Specialty Centers
  • Donate
Home / Ask the Expert / Polymyositis

Polymyositis

April 12, 2007 By Arthritis Center

Question

40 old man with weekness from 20 yr ago. his diagnosis is polymyositis and treatment not good. Now he have progimal and distal weekness.cpk=2450 ,LDH=900,.EMG faverable polymyositis .Biopsy have regernation$degernation of muscle fiber. gint cell no cellar infiltriation.but patient tretment with high dose corticosteriod,mtx.no provment in weekness but enzyme decrease tocpk=1450,LDH=600.PMH:negative what is your diagnosis? here is not possible for evalution muscle dystrophy.

Answer

Diagnosis is impossible without seeing the patient. But I share your concerns about diagnoses other than polymyositis given the long history and the marginal response to high dose steroids. Other possibilities inlude muscular dystrophy as you mentioned and metabolic myopathies. Muscle biopsy with EM and special stains is very useful to make those diagnoses.

Arthritis Center

Founded in 1998, the Arthritis Center at Johns Hopkins is dedicated to providing quality education to patients and healthcare providers alike.

Primary Sidebar

Ask The Expert Topics

  • Alternative Therapies
  • Ankylosing Spondylitis
  • Associated With Other Illnesses
  • Bursitis and Tendinitis
  • Corticosteroids
  • Diet and Exercise
  • Disease Modifying Antirheumatic Drugs (DMARDs)
  • Enteropathic Arthritis
  • Fibromyalgia
  • General Arthritis
  • Gout, Pseudogout, Other
  • Infectious Arthritis
  • Myositis
  • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs)
  • Osteoarthritis
  • Osteonecrosis
  • Osteoporosis
  • Polymyalgia Rheumatica
  • Psoriatic Arthritis
  • Reactive Arthritis
  • Regional Pain: Back and Neck
  • Rehabilitation
  • Rheumatoid Arthritis
  • Surgical Therapy
  • Systemic Lupus Erythematosus (SLE)
  • Systemic Sclerosis
  • Vasculitis
RheumTV Logo

Rheum.TV is an informational platform created to educate patients living with a rheumatic disease. With over 100 disease education videos produced by the team at Johns Hopkins Rheumatology.

Visit Rheum.TV

Footer

Johns Hopkins Rheumatology

  • Johns Hopkins Rheumatology
  • Johns Hopkins Lupus Center
  • Johns Hopkins Lyme Disease Research Center
  • Johns Hopkins Myositis Center
  • Johns Hopkins Scleroderma Center
  • Johns Hopkins Sjögren’s Syndrome Center
  • Johns Hopkins Vasculitis Center

Connect With Us

  • Facebook
  • Twitter
  • YouTube

Johns Hopkins Medicine

© 2023 Johns Hopkins Arthritis Center
Patient Privacy