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The respiratory distress improved with pulse doses of methylprednisolone and respiratory support using high-flow oxygen via heated humidified nasal cannula. During each admission, respiratory distress was resolved after administering pulse methylprednisolone. The child was admitted five times with such episodes in the paediatric intensive care unit (PICU). X-rays and high-resolution CT of the chest performed during respiratory distress showed diffuse ground-glass opacities and multiple areas of consolidation. After excluding sepsis, autoimmune diseases and vasculitis, a bronchoscopic alveolar lavage was conducted, revealing haemosiderin-laden macrophages. Having ruled out other causes of diffuse alveolar haemorrhage, this case was identified as idiopathic pulmonary haemosiderosis (IPH). Following discharge from the PICU and resolution of respiratory distress, the child was started on maintenance immunosuppression with prednisolone at 15\u2009mg\/day.<\/jats:p>","DOI":"10.1136\/bcr-2025-265327","type":"journal-article","created":{"date-parts":[[2025,7,7]],"date-time":"2025-07-07T07:45:14Z","timestamp":1751874314000},"page":"e265327","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Idiopathic pulmonary haemosiderosis in childhood"],"prefix":"10.1136","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7757-9469","authenticated-orcid":false,"given":"Hans","family":"Vaish","sequence":"first","affiliation":[{"name":"Pediatrics, Meher Hospital, Dehradun, Uttarakhand, 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