Haemoptysis in eosinophilic granuloma

Eosinophilic granuloma of bone may involve the lung in about 20% of cases (Lewis 1964); and may present in the lung without other organ involvement. Haemoptysis occurs in about 10% of cases for unknown reasons. I document here a case with typical presentation and course, but which was complicated by haemoptysis of increasing severity leading to death. The cause of haemoptysis was diagnosed at fibreoptic bronchoscopy.