Unusual Presentation of Cryptogenic Organising Pneumonia as a Focal Lung Mass: A Case Report and Literature Review.

Organising pneumonia (OP) is a distinct pathological pattern characterised by the presence of granulation tissue buds composed of fibroblasts and myofibroblasts embedded in a loose connective tissue matrix within the distal pulmonary airspaces. When OP occurs without an identifiable cause or etiologic context, it is termed cryptogenic organising pneumonia (COP). The diagnosis of OP can be challenging due to its diverse clinical presentations, including the idiopathic form and various secondary forms associated with underlying diseases.

Endobronchial Leiomyoma Presenting as Post-Obstructive Pneumonia.

Endobronchial leiomyoma is a rare airway tumour. We report the case of a 30-year-old female non-smoker who presented with persistent fever and cough, ultimately diagnosed with post-obstructive pneumonia secondary to an endobronchial leiomyoma. The patient underwent a successful endobronchial cryo-resection with the resolution of symptoms.