[Myocardial pyrophosphate uptake in cardiac amyloidosis: report of case].
We report a previously healthy 73 years old woman, who was hospitalised with increasing dyspnea and signs of congestive heart failure. Echocardiography showed a normal left ventricular cavity with increased echogenicity of its walls and severe pulmonary hypertension. A lung ventilation/perfusion scintigraphy concluded that there was a low probability for pulmonary embolism. Coronary angiography was normal. A restrictive cardiomyopathy due to amyloid deposits was suspected. Myocardial pyrophosphate scintigraphy showed intense pyrophosphate uptake in the left ventricle wall. An abdominal fat tissue biopsy was positive for amyloid deposits.
Redondo
Francisca
F
Centro de Medicina Nuclear del Hospital Clínico de la Universidad de Chile, Santos Dumont 999, 1o Piso, Sector E. Independencia, Santiago. fredondo@ns.hospital.uchile.cl
González
Patricio
P
Ramírez
Alfredo
A
D000368:Aged; D000686:Amyloidosis / Q000000981:diagnostic imaging* / Q000473:pathology; D009202:Cardiomyopathies / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D016698:Technetium Tc 99m Pyrophosphate
D019275:Radiopharmaceuticals; D016698:Technetium Tc 99m Pyrophosphate
Captación miocárdica de pirofosfato en amiloidosis cardíaca. Caso clínico.