Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics, and obligatory medical device diagnostics – for differential diagnostic clarification.
- Abdominal ultrasonography (ultrasound examination of the abdominal organs) – for basic diagnostics.
- X-rays of paranasal sinuses [evidence of sinus shadowing].
- X-ray of the thorax (X-ray thorax/chest), in two planes – evidence of infiltration, round foci, melting of the lungs.
- Computed tomography/magnetic resonance imaging of the skull (cranial CT or.cCT/cranial MRI or cMRI) – evidence of granulomas of the paranasal sinuses, possibly intracerebral lesions.
- MR-/CT angiography (imaging of renal vessels by contrast medium in an X-ray examination) [microaneurysms of renal vessels (in 70% of cases]
