title: Giant Cell Myocarditis: A Brief Review.
abstract: Giant cell myocarditis (GCM) is a rapidly progressive and frequently fatal disease that mainly affects young to middle-aged previously healthy individuals. Early diagnosis is critical, as recent studies have shown that rapidly instituted cyclosporine-based immunosuppression can reduce inflammation and improve transplant-free survival. Before the 1980s, GCM was mainly a diagnosis made at autopsy. Owing to advancements in diagnostic and therapeutic options, it is now increasingly diagnosed on the basis of endomyocardial biopsies, explanted hearts, or apical wedge sections removed at the time of ventricular assist device placement. Histologic examination remains the gold standard for diagnosis; however, there are many possible etiologies for cardiac giant cells. Having a working knowledge of the clinicopathologic features that distinguish GCM from other giant cell-containing lesions is essential, since such lesions can have widely divergent management and outcome.
authors.affiliation: From the Department of Pathology and Laboratory Medicine, University of Wisconsin Hospital and Clinics, Madison.
authors.forename: Jin
authors.initials: J
authors.lastname: Xu
authors.forename: Erin G
authors.initials: EG
authors.lastname: Brooks
mesh_terms: D000818:Animals; D016572:Cyclosporine / Q000627:therapeutic use; D003937:Diagnosis, Differential; D018450:Disease Progression; D004359:Drug Therapy, Combination; D042241:Early Diagnosis; D005870:Giant Cell Tumors / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology / Q000503:physiopathology; D006321:Heart / Q000187:drug effects / Q000503:physiopathology*; D006338:Heart Neoplasms / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use; D008213:Lymphocyte Activation / Q000187:drug effects; D009205:Myocarditis / Q000209:etiology* / Q000473:pathology / Q000517:prevention & control; D009206:Myocardium / Q000276:immunology / Q000473:pathology; D011379:Prognosis; D012720:Severity of Illness Index
chemical_list: D007166:Immunosuppressive Agents; D016572:Cyclosporine