Fig. 3.

(A–F): Clinical photograph of case no. 6 showing blackish periorbital discolouration (A); nasal endoscopy of the same patient showing black fungal material in the nasal cavity (B); MR axial images of the brain and orbit of case no. 9 showing enlargement of the left cavernous sinus (arrow) and guitar pick sign (blue star) (C); 3D Time of flight images of case no. 9 showing non-visualization of the left intracranial portion of the internal carotid artery (D); CT brain of the same patient showing left-hemispheric infarction and right anterior cerebral artery infarction (E); the histopathological picture of sinus mucosa showing angioinvasion (shown in yellow arrow) (F).