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Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
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Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
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Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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Castleman disease.

Antonino Carbone1,2, Margaret Borok3, Blossom Damania4

  • 1Centro di Riferimento Oncologico (CRO), IRCCS, National Cancer Institute, Aviano, Italy. acarbone@cro.it.

Nature Reviews. Disease Primers
|November 26, 2021
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Summary
This summary is machine-generated.

Castleman disease (CD) is categorized into unicentric and multicentric forms. Multicentric CD (MCD) includes KSHV-associated and idiopathic forms (iMCD), with distinct treatment approaches for each, impacting patient outcomes.

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Area of Science:

  • Hematology
  • Oncology
  • Infectious Diseases

Background:

  • Castleman disease (CD) is a heterogeneous lymphoproliferative disorder with unicentric and multicentric (MCD) subtypes.
  • MCD encompasses Kaposi sarcoma herpesvirus (KSHV)-associated MCD and idiopathic MCD (iMCD), often linked to severe systemic syndromes like TAFRO and POEMS.
  • KSHV-MCD frequently co-occurs with immune deficiencies, such as HIV infection, exacerbating associated KSHV-related disorders.

Purpose of the Study:

  • To delineate the distinct characteristics and diagnostic considerations for various forms of Castleman disease.
  • To highlight the therapeutic strategies and standard of care for KSHV-MCD and iMCD.
  • To emphasize the diagnostic complexity requiring a multidisciplinary approach.

Main Methods:

  • Review of clinical presentations, imaging findings, pathological features, and molecular virology for CD diagnosis.
  • Analysis of treatment protocols, including B cell-directed monoclonal antibody therapy for KSHV-MCD.
  • Evaluation of anti-IL-6 therapy as a first-line treatment for iMCD, noting FDA and EMA approvals.

Main Results:

  • Unicentric CD is typically treated with surgery, while MCD requires distinct management strategies.
  • KSHV-MCD management involves B cell-directed monoclonal antibody therapy.
  • Anti-IL-6 therapy is the established first-line treatment for iMCD.

Conclusions:

  • Castleman disease diagnosis necessitates a comprehensive evaluation integrating clinical, pathological, and molecular data.
  • Therapeutic decisions for MCD subtypes are guided by the presence of KSHV and specific clinical syndromes.
  • Targeted therapies, such as anti-IL-6 for iMCD and monoclonal antibodies for KSHV-MCD, represent the current standard of care.