ABSTRACT
The reversibility of basilar artery stenosis in neuro-Behcet's disease (NB) has been rarely reported. We report a patient with NB who developed brainstem infarction related to severe stenosis in basilar artery. Initial MRA showed severe stenosis in the basilar artery, which was improved on follow-up MRA after immunosuppressive treatment. This case shows that arterial stenosis in NB can be reversed with proper management.
Subject(s)
Humans , Basilar Artery , Brain Stem Infarctions , Constriction, Pathologic , Follow-Up Studies , Vertebrobasilar InsufficiencyABSTRACT
Apraxia of lid opening (ALO) has been suggested to be a dysfunction of the supranuclear control of the levator palpebrae superioris caused mainly by basal ganglial lesion. The hypometabolism of the medial frontal lobe may be a pathophysiologic mechanism in ALO. We report two ALO patients who developed these symptoms as a delayed complication after traumatic brain injury (TBI). Their MRI showed encephalomalacia in the Rt. medial frontal cortex, which was not shown in initial brain CT scans. Delayed pathologic changes after TBI may contribute to the development of ALO in these cases.
Subject(s)
Humans , Apraxias , Brain , Brain Injuries , Encephalomalacia , Frontal Lobe , Magnetic Resonance Imaging , Tomography, X-Ray ComputedABSTRACT
BACKGROUND: Guillain-Barre syndrome is defined as a recognizable clinical entity that is characterized by rapidly evolving symmetric limb weakness, the loss of tendon reflexes, absent or mild sensory signs, and variable autonomic dysfunctions. This study evaluated the clinical and electrophysiological findings retrospectively. MATERIALS AND METHODS: Forty-five patients with Guillain-Barre syndrome, who were admitted to the Yeungnam University Hospital for six years from Jan. 1994 to Dec. 1999 were investigated. The correlation between the clinical manifestation and the electrophysiological study was evaluated. RESULTS: The male to female ratio was 1.8: 1 and there was a peak seasonal incidence in the winter. A preceding illness was noted in 66.7% of cases, and an upper respiratory tract infection was the most common one. The most common clinical manifestations were a loss of tendon reflex and ascending muscle weakness and paralysis. The cerebrospinal fluid examinations revealed, albuminocytologic dissociation in 33 cases (73.3%). Intravenous immunoglobulin therapy was performed in 29 cases (64.4%). The sequential electrophysiological abnormalities were most marked at 2 to 4 weeks after onset. At that time the most significant change was a decrease in the compound muscle action potential amplitude. These 45 patients with Guillain-Barre syndrome were subclassified using the clinical and electrophysiological data. CONCLUSION: The result in this study, concured with other research on the clinical and electrophysiological data of Guillain-Barre syndrome. However, an extensive and dynamic investigation is necessary to determine the reason for the peak seasonal incidence in winter.
Subject(s)
Female , Humans , Male , Action Potentials , Cerebrospinal Fluid , Extremities , Guillain-Barre Syndrome , Immunization, Passive , Incidence , Muscle Weakness , Paralysis , Reflex, Stretch , Respiratory Tract Infections , Retrospective Studies , SeasonsABSTRACT
Behcet's disease is a chronic, relapsing multisystem disorder, that may develop into variable neurological manifestations. They include vascular and parenchymal involvement. Vascular involvement is dominated by cerebral venous sinus thrombosis marked by benign intracranial hypertension. Cerebral venous sinus thrombosis can present with all the classical criteria for idiopathic intracranial hypertension, including normal brain CT findings with normal CSF content. But brain MRI is a useful diagnostic method in this situation to confirm the presence of cerebral venous sinus thrombosis. We experienced a case of raised intracranial pressure in a 21-year-old man, caused by cerebral venous sinus thrombosis. We disclosed his symptoms and signs thus fulfilling the diagnostic criteria for Behcet's disease.
Subject(s)
Humans , Young Adult , Brain , Intracranial Hypertension , Intracranial Pressure , Magnetic Resonance Imaging , Neurologic Manifestations , Pseudotumor Cerebri , Sinus Thrombosis, IntracranialABSTRACT
PURPOSE: To demonstrate and evaluate the value of MRI findings of the TSH(Thyroid-Stimulating Hormone, TSH, Thyrotropin)-secreting pituitary adenoma. MATERIALS AND METHODS: The authors reviewed retrospectively the MR images of 4 patients with TSH-secreting pituiatary adenoma. Evaluation of the anatomical location, signal characteristics, enhancement patterns, size, shape and circunferential changes were made. RESULTS: No characteristic common MR findings in size, shape, signal intensity, and circumferential changes of TSH-secreting pituiatary adenoma waere observed among 4 cases(size; 5x7 mm to 10x11 mm, shape;ovoid to round, signal intensity;high in 1 case on T1 and T2WI, isosignal intensity in the other 3 cases, circumferential change; stalk deviation in 1 case, no stalk deviation in 3 cases). But, the tumors were centrally located at the anterior pituitary gland and showed relatively homogeneous signal intensity on MR images of all 4 patients. CONCLUSION: We conclude that centrally-located mass at the anterior pituitary gland with homogeneous signal intensity on MR image may be suggestive of the TSH-secreting pituitary adenoma, although the MR findings are not specific for the disease.