[Giant left atrial myxoma with ossification on having a fever; report of a case].

A 37-year-old female with a fever had a medical examination, and was pointed out cardiac murmur. She was referred to our hospital for a further examination. Blood cultures were positive for Streptococcus milleri group. Thoracic echocardiogram demonstrated a giant left atrial tumor, arising from the portion of the interatrial septum, and mitral insufficiency. We removed the tumor completely and performed mitral annuloplasty. The tumor was diagnosed as myxoma with ossification by histopathological examination. She discharged from our hospital 25 days after the operation without complication and does not recur for 3 years. We consider our case as extremely rare, because it revealed giant left atrial myxoma with ossification and mitral insufficiency at the same time.