A 60-year-old woman underwent polycaprolactone-based filler injection in her midface. Four months later, she developed progressive swelling of midface after a self-limiting viral gastroenteritis. The diagnosis was "delayed-onset immune-mediated nodule formation triggered by a virus." Ultrasonography enabled us to efficiently treat her with a tailored intralesional corticosteroid injection method.
Keywords: allergy and immunology; dermatology; ear, nose and throat; general surgery; pharmacology.
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