Pearls & Oy-sters: Oculopalatal tremor with one-and-a-half syndrome after pontine hemorrhage.

Understanding drug-induced parkinsonism: separating pearls from oy-sters.

Maria Victoria G. Alvarez, MD Virgilio Gerald H. Evidente, MD In 1817, James Parkinson described the shaking palsy now known as Parkinson disease (PD). Descriptions evolved until the term “parkinsonism” now refers to a syndrome characterized by the presence of tremor, rigidity, and bradykinesia in addition to loss of postural reflexes and freezing. The most common cause of parkinsonism is PD. H...

Pearls & oy-sters: cerebral venous air embolism after central catheter removal: too much air can kill.

Pearls & Oy-sters: An isolated cranial nerve 6 palsy as a presentation of polycythemia vera.

Polycythemia vera (PV) is a myeloproliferative disorder associated with neurologic sequelae. The most severe neurologic processes affecting patients with PV are thrombotic and hemorrhagic strokes. Few cases published in the medical literature describe developments of other neurologic symptoms, including papilledema, oculomotor nerve palsy, one-and-a-half syndrome, and trochlear nerve syndrome, ...

Pearls & Oy-sters: cough headache secondary to Chiari malformation type I.

Pearls & Oy-sters: Delayed traumatic intracerebral hemorrhage caused by cerebral venous sinus thrombosis.

1. Intracerebral hemorrhage can follow an asymptomatic interval after a trauma and may be due to local or systemic coagulation abnormalities, necrosis of blood vessels in areas of brain injury, transient cerebral dysautoregulation, reduction of intracranial pressure either medically or surgically, or cerebral venous sinus thrombosis. 2. Cerebral venous sinus thrombosis may be easily overlooked ...