Key result
Circumflex feeder sign on CTA guides safe redo resection of recurrent left atrial intimal sarcoma.
Cardiac computed tomography angiography can identify a circumflex feeder sign as a warning for safe redo resection of a recurrent left atrial intimal sarcoma.
May guide preoperative CTA review before redo atrial sarcoma resection; hypothesis-generating and requires prospective validation.
A 43-year-old woman was evaluated 26 months after resection of a left atrial intimal sarcoma, when follow-up cardiac computed tomography angiography (CTA) disclosed a 5 × 4 cm recurrent mass at the...
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Yang et al. (2026) studied this question. The circumflex feeder sign on cardiac computed tomography angiography serves as a diagnostic warning to guide safe redo resection of recurrent left atrial intimal sarcoma.
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