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[Intra-cavity aspergilloma complicating necrotising sarcoid granulomatosis]
1Service de Pneumo-Immuno-Allergologie, Centre Hospitalier Universitaire de Lille, France.
Introduction:
Necrotising sarcoid granulomatosis is a rare clinical entity, characterised by the development of nodular pulmonary opacities, the diagnosis if which is based on the identification of characteristic pathological lesions.
Case Report:
A 44-years-old male smoker presented with cough and fever. With the exception of a few basal crepitations clinical examination was normal. The chest x-ray showed multiple areas of alveolar consolidation scattered throughout both lung fields, some of which were cavitated. The thoracic CT scan confirmed the presence of cavitating nodules and hilar and mediastinal lymphadenopathy. Samples for mycobacteria were negative. A search for anti-neutrophil cytoplasmic antibodies was negative. Fibreoptic bronchoscopy was normal but transbronchial biopsies revealed giant cells. Lung biopsies taken by video thoracoscopy showed non-caseating granulomata with areas of fibrinoid necrosis and perivascular infiltration with lymphocytes, histology characteristic of necrotising sarcoid granulomatosis. Resolution occurred without treatment. The parenchymal lesions regressed leaving residual cavities. Four years later, following an episode of haemoptysis, the patient was found to have a squamous cell carcinoma (T1N0M0) and aspergillomas in the pulmonary cavities.
Conclusions:
Our observation demonstrates that the cavities of necrotising sarcoid granulomatosis may be complicated by aspergillomas.
Insights
Necrotising sarcoid granulomatosis, a rare lung condition, can lead to cavities. These cavities may become complicated by aspergillomas, fungal infections, as seen in a recent case study.
Area of Science:
- Pulmonology
- Pathology
- Infectious Diseases
Background:
- Necrotising sarcoid granulomatosis (NSG) is a rare pulmonary disease characterized by nodular opacities.
- Diagnosis relies on identifying characteristic pathological lesions, often requiring invasive biopsies.
Observation:
- A 44-year-old male smoker presented with cough and fever, exhibiting cavitating nodules and lymphadenopathy on imaging.
- Transbronchial and video-thoracoscopic lung biopsies revealed non-caseating granulomata with fibrinoid necrosis, consistent with NSG.
Findings:
- The patient's NSG lesions resolved without treatment, leaving residual pulmonary cavities.
- Four years later, the patient developed squamous cell carcinoma and aspergillomas within these pre-existing cavities.
Implications:
- This case highlights that cavities resulting from necrotising sarcoid granulomatosis can serve as a nidus for secondary fungal infections like aspergillomas.
- Clinicians should consider the potential for aspergilloma development in patients with a history of NSG-related pulmonary cavities.
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