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Table 2 Differential diagnosis

From: Rare presentation of an atrial myxoma in an adolescent patient: a case report and literature review

Rheumatologic/hematologic Neoplastic Infectious Cardiac
Polyarteritis nodosa Paraneoplastic vasculitis Septic emboli Cardiac myxoma
Leukocytoclastic vasculitis, inflammatory   Leukocytoclastic vasculitis  
Coagulopathy (i.e., antiphospholipid syndrome, cryoglobulinemia, other inherited disorder)    
Henoch-Schonlein purpura