Left atrial intramural haematoma: a fatal complication of cardiac amyloidosis-a case report.

LAIH is a rare yet fatal complication of CA. Autopsy revealed diffuse amyloid deposits within the left atrium may lead to left atrial fragility and contribute to development of LAIH. LAIH should be considered as an important differential diagnosis in the setting of a rapidly growing left atrial mass, and in hemodynamic instability in patients with CA.