[Cervicocranial arterial dissection. Experience in 57 patients].

Background: Cervicocranial arterial dissection (CIAD) is an important cause of stroke.

Aim: To describe the clinical and imaging characteristics of patients with CIAD.

Material And Methods: An anonymous registry was made including all patients admitted to a private hospital with a diagnosis of CIAD.

[Myasthenia gravis and its association with lymphoproliferative disorders: a case series].

Myasthenia gravis (MG) is a rare autoimmune disease of the neuromuscular junction. It is characterized by variable weakness and excessive fatigability of skeletal muscles. In the last few years, numerous reports have been published showing the association between autoimmune diseases, such as systemic erythematous lupus or rheumatoid arthritis, with lymphoid neoplasias.

[Toxic encephalopathy caused by liquefied gas exposure: Report of one case].

Liquefied hydrocarbon gas, such as propane is considered safe. However there are reports that voluntary exposure to liquefied gas at least could originate hallucinatory states. We report a 20 years old woman who was found in a coma with extensor muscle hypertonia, brisk tendon reflexes and extensor plantar (Babinski) responses after being exposed to propane gas.