OBJECT The aim of this study was to evaluate the efficacy of endoscopic third ventriculostomy (ETV) in patients with Chiari malformation Type I (CM-I) and hydrocephalus with or without syringomyelia. METHODS The authors identified, in a prospective endoscopy database, 16 adults and children (age range 2-68 years) with CM-I and hydrocephalus that had been managed with ETV. They reviewed the cl...

A 35-year-old woman had had episodes of right-sided facial twitching for approximately 2 months. For 23 weeks before admission, she had had tightness in the left buttock radiating down to the lateral calf and numbness in the perineal region . The results of physical examination were normal except for decreased sensation in the right side of the perineum and decreased reflex of the left knee . M...

OBJECT It is unclear if there is a relationship between Chiari malformation Type I (CM-I) and body mass index (BMI). The aim of this study was to identify the relationship between BMI and cerebellar tonsil position in a random sample of people. METHODS Cerebellar tonsil position in 2400 subjects from a cohort of patients undergoing MRI was measured. Three hundred patients were randomly select...

The foramen magnum (FM) is the key component of craniovertebral junction, which connects brain stem and medulla spinalis closely related to vital structures. FM dimensions are great clinical importance. Considering similarity in shape between orbita, we thought that there might be a relationship lengths (sagittal diameter) widths (transverse these Since it not possible reach directly, set up ou...