Behçet's disease is an inflammatory disease that may involve the chest, manifesting itself by the presence of pulmonary artery aneurysms. The authors report a case of Behçet's disease where findings at chest radiography and computed tomography have suggested the possibility of the diagnosis.

Keywords: Behçet's disease; Radiology; Vasculitis.

Churg-Strauss syndrome is a rare systemic disease primarily characterized by hypereosinophilia, asthma and vasculitis. The lung is the organ most frequently involved. In the present report, the authors describe a relatively rare finding in this disease – the presence of a pulmonary nodule –, while recalling the main radiological findings and the most relevant differential diagnoses.

Keywords: Vasculitis; Eosinophilia; Asthma.

Neuro-Behçet’s disease (NBD) is a rare but serious manifestation of Behçet’s disease, categorized into parenchymal and non-parenchymal forms, each with distinct clinical and imaging characteristics. Parenchymal NBD primarily affects the brainstem, basal ganglia, and diencephalon. On magnetic resonance imaging (MRI), acute or subacute lesions appear hyperintense on T2-weighted or fluid-attenuated inversion recovery sequences and isointense to hypointense on T1-weighted sequences, whereas chronic lesions may present as asymmetrical atrophic changes. Non-parenchymal NBD may present as cerebral venous thrombosis, arterial involvement, and meningeal inflammation. Here, we provide a pictorial essay on MRI central nervous system studies, mostly following an international consensus classification of NBD. Although NBD is rare, recognizing its characteristic imaging features is crucial for early diagnosis and treatment, potentially improving prognosis and reducing long-term neurological complications.

Keywords: Behçet syndrome; Magnetic resonance imaging; Vasculitis, central nervous system.