摘要:

AN 8-MONTH-OLD FEMALE infant with a primary carcinoma of the choroid plexus developed a rhabdomyosarcoma in the anterior chest wall at the age of 1 year and 2 months. Her mother had developed a liposarcoma in her left thigh at the age of 17 years. One of the patient's siblings had a rhabdomyosarcoma of the epipharynx at the age of 1 year. This is the fourth reported case of a choroid plexus carcinoma occurring in Li-Fraumeni syndrome.

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID

摘要:

A CASE OF actinomycotic brain abscess is presented. Conservative treatment by prolonged administration of antibiotics after needle biopsy showed complete resolution of the abscess. Previously reported cases suggest that definitive treatment requires excision or open surgical drainage of the abscess. The case presented suggests an alternative approach to treating this unusual cause of brain abscess.

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID

摘要:

THE PROPER FUNCTION of an antisiphon device (ASD) requires that it be exposed externally to atmospheric pressure and that its mobile membrane be free to move. A 4-year-old boy who had an ASD placed for postshunt subdural hematomas presented with functional obstruction of the ASD- symptomatic ventriculomegaly despite evidence of patency of the shunt system by radionuclide flow study. At surgery, the distal shunt system including the ASD was infused with normal saline before and after surgical exposure of the device. The pressures required to maintain a flow rate of 5 ml/h and 50 ml/h were 27 mm Hg and 30 mm Hg, respectively. After surgical exposure, these pressures fell to 0 mm Hg and 5 mm Hg, respectively, for the same infusion rates. Surgical exposure removes the effects of the tissue capsule, including the overlying skin and a collagenous sheath, restoring the external pressure to atmospheric pressure. Functional obstruction of ASDs occurs because of raised ambient pressure from the tissue capsule acting to depress the mobile membrane of the ASD, increasing its resistance to flow. This case confirms previously reported effects of subcutaneous implantation of ASDs in experimental animals and is the probable explanation for reported functional obstruction of ASDs in other patients.

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID

摘要:

WE REPORT TWO patients in whom bullets in the brain migrated into the adjacent lateral ventricle and moved freely as a consequence of gravity. A review of the literature suggests that the spontaneous migration of intracerebral bullets is influenced by cerebral softening, the specific gravity of the bullet compared with brain tissue, and the sink function of the cerebral ventricles. In patients undergoing the surgical removal of intracerebral or intraventricular bullets, it is recommended that an x-ray be obtained after the final positioning of the head.

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID

摘要:

AN ADULT AUTOPSY case of the persistent primitive trigeminal artery (PTA) is reported. At the origin of the PTA in the cavernous portion of the internal carotid artery, the PTA branched into the meningohypophyseal trunk and the artery of the inferior cavernous sinus. This might indicate that these arteries were formed at the same embryonic stage. At the cisternal portion of the PTA in the posterior fossa, it also branched into the trigeminal nerve root and pons on the way to the basilar artery. The PTA might have functions for the normal structures even in the case of adults. The PTA passed through the dural foramen, which was located medial to Meckel's cave, and connected with the basilar artery. The diameter of the PTA decreased markedly at the foramen. The dural foramen might be the site of regression of the PTA during the embryonic stage.

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1993

数据来源: OVID