Key result
Histologic analysis in a 47-year-old woman confirmed the rare synchronous occurrence of identical myxomas in the small bowel and left atrium without vascular involvement.
Case Report (n=1)
This case highlights the rare synchronous occurrence of intestinal and cardiac myxomas, supporting the recommendation to screen for cardiac lesions when a myxoma is found in an unusual location.
May support cardiac screening for atypical myxomas; hypothesis-generating and should not yet change practice.
Although atrial myxoma is the most common primary tumor of the heart, the synchronous occurrence of myxomas of the intestine and the heart has not been reported in the English literature. We report a case of a 47-year-old woman who presented with small bowel obstruction by a pedunculated mass that was found to be a myxoma after resection. A left atrial mass was found incidentally by a computed tomographic scan, and a diagnosis of atrial myxoma was confirmed after a second surgery. The cardiac myxoma showed classic histologic features, with tumor cells layered around vascular channels in an abundant myxoid matrix, while the small bowel lesion was less cellular. Immunohistochemical stains yielded identical results in both. No vascular involvement was noted at either site. This case supports the recommendation that a search for a cardiac lesion should be performed when a myxoma is identified at an unusual location.
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Wang et al. (2003) conducted a case report in Synchronous small bowel and left atrial myxoma (n=1). Synchronous small bowel and left atrial myxomas was evaluated on Histologic and immunohistochemical confirmation. Histologic analysis in a 47-year-old woman confirmed the rare synchronous occurrence of identical myxomas in the small bowel and left atrium without vascular involvement.
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