Respiratory Manifestations in Pediatric Patients With Interleukin 6 Receptor Deficiency.

Interleukin-6 receptor (IL-6R) deficiency is a rare immunodeficiency marked by impaired IL-6 signaling, affecting the inflammatory response and respiratory health. In this report, pediatric patients with IL-6R deficiency presented with a spectrum of respiratory symptoms, from mild to severe infections, but did not commonly develop early bronchiectasis. Due to the absence of typical inflammatory markers in lung infections, routine imaging is advised to monitor for potential complications, even in the absence of overt clinical signs.