In other patients, especially younger patients, other causes should be considered, including the following: [7, 42] Hypercoagulable states (eg, antiphospholipid antibodies, protein C deficiency, protein S deficiency, pregnancy) Sickle cell disease Fibromuscular [emedicine.medscape.com]

Deafness and tinnitus may occur with lateral inferior pontine lesions due to occlusion of the anterior-inferior cerebellar artery. [brainmind.com]