| A Myxosarcoma of the Left Atrium
of Which Extension in the Left Atrium Was Diagnosed by Transesophageal
Echocardiography |
(Department of Cardiovascular Surgery, Saitama Municipal
Hospital, Saitama, Japan and Department of Surgery, Keio University
School of Medicine*, Tokyo, Japan)
| Satoru Suzuki |
Yasunori Cho |
Yoshiyuki Haga |
| Toshiyuki Katogi* |
|
|
|
A 60-year-old woman was admitted
because of dyspnea and a cough. Computed tomography and transthoracic
echocardiography showed a tumor in the left atrium. However,
transesophageal echocardiography alone could show the tumor and
its extension in the interior wall of the left atrium. Peripheral
blood chemistry showed a high CA125 level. The first operation
was carried out in order to perform a complete resection of the
tumor which was 3.5×4.0×2.0cm, but the interior wall of the left
atrium seemed normal. The CA125 level returned to within a normal
range 80 days after the first operation. Histopathology showed
the tumor had myxomatous changes and ring structure formations,
but malignancy was also suspected. Transthoracic echocardiography
performed 14 months after the first surgery showed a recurrence
of the tumor, and subsequent transesophageal echocardiography
showed the tumor and its invasion in the interior wall of the
left atrium. A second operation was performed to resect the tumor,
which had invaded a part of the left atrial interior wall. The
histopathology showed the tumor was myxoid but had mitoses and
foci of necroses. This tumor was consistent with a myxosarcoma.
The patient died as a result of a recurrent tumor blocking the
left atrium 20 months after the first surgery.
Jpn. J. Cardiovasc. Surg. 33: 278-281 (2004) |
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