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Pericarditis is distinguished by inflammation of the pericardium, the fibrous sac that encases the heart. It can be acute, lasting less than six weeks, or chronic, persisting for over three months. Understanding its clinical manifestations and diagnostic findings is crucial for timely and effective management.Clinical ManifestationsWhile pericarditis can be asymptomatic, it usually presents with characteristic symptoms such as:Chest Pain: The most characteristic symptom of pericarditis is chest...
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Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
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Updated: Jan 22, 2026

Antibody Transfection into Neurons as a Tool to Study Disease Pathogenesis
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Dermatomyositis: Clinical features and pathogenesis.

Madeline E DeWane1, Reid Waldman2, Jun Lu2

  • 1University of Connecticut School of Medicine, Farmington, Connecticut.

Journal of the American Academy of Dermatology
|July 8, 2019
PubMed
Summary
This summary is machine-generated.

Dermatomyositis diagnosis is improving with new myositis-specific antibodies. These antibodies help identify distinct subtypes of dermatomyositis (DM), aiding dermatologists in patient care.

Keywords:
MDA5Mi2NXP2SAETIF1amyopathic dermatomyositisdermatomyositisidiopathic inflammatory myopathyinterstitial lung diseasejuvenile dermatomyositismalignancy-associated dermatomyositismyositis-specific antibodies

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Area of Science:

  • Immunology
  • Dermatology
  • Rheumatology

Background:

  • Dermatomyositis (DM) is a complex idiopathic inflammatory myopathy with variable clinical presentations.
  • Diagnosis can be challenging due to heterogeneous cutaneous and systemic manifestations that may not correlate with muscle involvement.

Purpose of the Study:

  • To review recent advancements in myositis-specific antibodies (MSAs) relevant to dermatomyositis.
  • To explore the clinical associations of specific MSAs with DM subtypes, including cutaneous features, systemic disease, and cancer risk.

Main Methods:

  • Literature review of recent studies on dermatomyositis and myositis-specific antibodies.
  • Analysis of correlations between specific MSAs (anti-Mi2, -MDA5, -NXP2, -TIF1, -SAE) and clinical phenotypes.

Main Results:

  • Emerging understanding of MSAs offers potential to refine DM diagnosis for dermatologists.
  • Specific MSAs like anti-Mi2, -MDA5, -NXP2, -TIF1, and -SAE are associated with distinct DM subtypes.
  • These associations relate to characteristic skin findings, patterns of systemic involvement, and varying malignancy risks.

Conclusions:

  • Myositis-specific antibodies are crucial for classifying dermatomyositis subtypes.
  • Understanding these antibody-phenotype correlations can improve diagnostic accuracy and patient management in both adults and children.
  • Future research directions in DM diagnosis and classification are highlighted.