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Four weeks after he received a heart transplant, a 47-year-old man was admitted to this hospital because of ventricular dysfunction detected on echocardiography. The patient had been well until 19 months earlier, when congestive heart failure developed, followed by several syncopal episodes. Echocardiography performed at another hospital revealed a speckled pattern of reflectance of the ventricular myocardium, and pathological examination of a biopsy specimen of a fat pad obtained at that hospital was positive for the presence of amyloid. Examination of a bone marrow biopsy specimen revealed 10% plasma cells, and free lambda light chains were present in the serum.
Differential Diagnosis
Primary Cardiac Amyloidosis
The Donor Heart
Early Decline in Cardiac Function after Transplantation
Transplant Rejection
Other Causes of Cardiac Dysfunction
Myocardial Infarction
Causes of Myocardial Infarction in Allografts
Timing of Myocardial Infarction in this Patient
Dr. Lynne Warner Stevenson's Diagnosis
Pathological Discussion
Anatomical Diagnoses
Source Information
From the Cardiology Division (M.J.S., J.J.P.) and the Department of Pathology (J.R.S.), Massachusetts General Hospital; the Cardiovascular Division, Brigham and Women's Hospital (L.W.S.); and the Departments of Medicine (M.J.S., L.W.S., J.J.P.) and Pathology (J.R.S.), Harvard Medical School.
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