]> 2026-07-31T12:13:53+00:00 WBR0011 0 en Myocarditis Hearing loss Sensorineural hearing loss is a rare and transient complication. It responds promptly to intravenous immunoglobulin (IVIG) therapy. Interstitial nephritis Pneumonitis This is rare; it responds promptly to intravenous immunoglobulin (IVIG) therapy. Coronary artery aneurysm This is the most life-threatening complication. Pediatrics Anonymous (Edited by Ayokunle Olubaniyi and Alison Leibowitz) A 13 year-old boy is brought to the clinic for a gradually worsening fever of 10 days duration accompanied by a diffuse rash. His mother states that the fever has been as high as 103.0°F (39.4°C) and she has kept him out of school because of this. Observed upon physical exam is a diffuse morbilliform rash over his trunk and extremities, which also becomes confluent in the groin. Both sclerae are infected and his tongue is red and bumpy on appearance. Notable lymphadenopathy is present in the anterior and posterior cervical chains. Which of the following complications is the most common and life-threatening in this patient? E Allergy/Immunology 2020-10-27T23:03:13Z 2459150.4605671 WBR0011