National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Amyopathic dermatomyositis



Amyopathic dermatomyositis is a form of dermatomyositis characterized by the presence of typical skin findings without muscle weakness.[1][2] Some of the skin changes that suggest dermatomyositis include a pink rash on the face, neck, forearms and upper chest; Gottron's papules and heliotrope eyelids.[2][3][4] Pruritis and photosensitivity are common, as is scalp inflammation and thinning of the hair.[2][3] While patients with amyopathic dermatomyositis should not have clinically evident muscle weakness, minor muscle abnormalities may be included. Fatigue is reported in at least 50% of patients.[2] Some cases have been associated with internal malignancy and/or interstitial lung disease.[5] Treatment may include sun avoidance, ample use of sunscreen, topical corticosteroids, antimalarial agents, methotrexate, mycophenolate mofetil, or intravenous (IV) immunoglobulin.[1]
Last updated: 1/10/2013

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

Showing of 45 |
Medical Terms Other Names
Learn More:
HPO ID
80%-99% of people have these symptoms
Abnormal eyelid morphology
Abnormality of the eyelid
Abnormality of the eyelids
[ more ]
0000492
Autoimmunity
Autoimmune disease
Autoimmune disorder
[ more ]
0002960
EMG abnormality 0003457
Erythema 0010783
Inflammatory myopathy 0009071
Myalgia
Muscle ache
Muscle pain
[ more ]
0003326
Periorbital edema 0100539
Proximal muscle weakness
Weakness in muscles of upper arms and upper legs
0003701
30%-79% of people have these symptoms
Abnormal hair quantity 0011362
Abnormality of the nail 0001597
Acrocyanosis
Persistent blue color of hands, feet, or parts of face
0001063
Arthralgia
Joint pain
0002829
Arthritis
Joint inflammation
0001369
Chondrocalcinosis
Calcium deposits in joints
0000934
Diffuse reticular or finely nodular infiltrations 0002207
Dry skin 0000958
Fatigue
Tired
Tiredness
[ more ]
0012378
Interstitial pulmonary abnormality
Abnormality in area between air sacs in lung
0006530
Muscular hypotonia
Low or weak muscle tone
0001252
Papule 0200034
Pruritus
Itching
Itchy skin
Skin itching
[ more ]
0000989
Pulmonary fibrosis 0002206
Recurrent respiratory infections
Frequent respiratory infections
Multiple respiratory infections
respiratory infections, recurrent
Susceptibility to respiratory infections
[ more ]
0002205
Respiratory insufficiency
Respiratory impairment
0002093
Skin ulcer
Open skin sore
0200042
Weight loss 0001824
5%-29% of people have these symptoms
Abnormal eosinophil morphology 0001879
Aplasia/Hypoplasia of the skin
Absent/small skin
Absent/underdeveloped skin
[ more ]
0008065
Breast carcinoma
Breast cancer
0003002
Cellulitis
Bacterial infection of skin
Skin infection
[ more ]
0100658
Cutaneous photosensitivity
Photosensitive skin
Photosensitive skin rashes
Photosensitivity
Sensitivity to sunlight
Skin photosensitivity
Sun sensitivity
[ more ]
0000992
Dysphonia
Inability to produce voice sounds
0001618
Feeding difficulties in infancy 0008872
Fever 0001945
Gangrene
Death of body tissue due to lack of blood flow or infection
0100758
Gastrointestinal stroma tumor 0100723
Lung adenocarcinoma 0030078
Lymphoma
Cancer of lymphatic system
0002665
Myocardial infarction
Heart attack
0001658
Myocarditis
Inflammation of heart muscle
0012819
Pericarditis
Swelling or irritation of membrane around heart
0001701
Pulmonary arterial hypertension
Increased blood pressure in blood vessels of lungs
0002092
Sinus tachycardia 0011703
Telangiectasia of the skin 0100585
Vasculitis
Inflammation of blood vessel
0002633
Showing of 45 |
Last updated: 7/1/2020

Related diseases are conditions that have similar signs and symptoms. A health care provider may consider these conditions in the table below when making a diagnosis. Please note that the table may not include all the possible conditions related to this disease.

Conditions with similar signs and symptoms from Orphanet
The differential diagnoses include muscular dystrophies of late onset, as well as adult-onset nemaline myopathy, proximal myotonic myopathies and systemic lupus erythematosus, pityriasis rubra pilaris, lichen planus (see these terms), and polymorphous light eruption.
Visit the Orphanet disease page for more information.

Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Clinical Research Resources

  • ClinicalTrials.gov lists trials that are related to Amyopathic dermatomyositis. Click on the link to go to ClinicalTrials.gov to read descriptions of these studies.

    Please note: Studies listed on the ClinicalTrials.gov website are listed for informational purposes only; being listed does not reflect an endorsement by GARD or the NIH. We strongly recommend that you talk with a trusted healthcare provider before choosing to participate in any clinical study.

Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease


Living with a genetic or rare disease can impact the daily lives of patients and families. These resources can help families navigate various aspects of living with a rare disease.

Financial Resources

  • The Assistance Fund provides various services, including education and financial aid, to help patients with a chronic or serious illness cover the cost of FDA-approved medications. Patients must be U.S citizens or permanent residents.

These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

Where to Start

  • DermNet NZ is an online resource about skin diseases developed by the New Zealand Dermatological Society Incorporated. DermNet NZ provides information about this condition.
  • The National Organization for Rare Disorders (NORD) has a report for patients and families about this condition. NORD is a patient advocacy organization for individuals with rare diseases and the organizations that serve them.

In-Depth Information

  • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Amyopathic dermatomyositis. Click on the link to view a sample search on this topic.

Questions sent to GARD may be posted here if the information could be helpful to others. We remove all identifying information when posting a question to protect your privacy. If you do not want your question posted, please let us know.


  1. Callen JP. Dermatomyositis. Medscape Reference. October 2011; http://emedicine.medscape.com/article/332783-overview.
  2. Olsen NJ, Park JH, King LE Jr. Amyopathic dermatomyositis. Curr Rheumatol Rep. Aug 2001; http://www.ncbi.nlm.nih.gov/pubmed/11470054.
  3. Dermatomyositis. DermNet NZ. 2011; http://www.dermnetnz.org/immune/dermatomyositis.html.
  4. Saoud B, Allali F, Hassouni NH. Amyopathic dermatomyositis. Joint Bone Spine. May 2006; http://www.ncbi.nlm.nih.gov/pubmed/16253536.
  5. Sato S, Kuwana M. Clinically amyopathic dermatomyositis. Curr Opin Rheumatol. Nov 2010; http://www.ncbi.nlm.nih.gov/pubmed/20827200.