ABSTRACT
The leading cause for low back pain and sciatica is a herniated intervertebral disc, which has often been removed by laminectomy or chemonucleolysis. A less invasive method is percutaneous lumbar discectomy, surgical aspiration of the central nuclear material. With proper patient selection and surgical technique, percutaneous lumbar discectomy achieves results similar to those of chemonucleolysis.
Subject(s)
Intervertebral Disc Displacement/surgery , Suction/methods , Humans , Intervertebral Disc Displacement/diagnostic imaging , Intervertebral Disc Displacement/etiology , Radiography , Suction/instrumentation , Treatment OutcomeABSTRACT
Schistosomiasis of the spinal cord is a rare presentation of a disease involving over 200 million people. A patient from an endemic area presenting as a transverse myelitis or a spinal cord tumor, and with eosinophilia, should alert the physician to the possibility of schistosomiasis of the spinal cord. Diagnosis is based on finding the characteristic eggs in the stool or urine, or if necessary, by rectal, bladder or liver biopsies. Myelography is performed to determine if decompressive laminectomy is necessary.
Subject(s)
Myelitis, Transverse/diagnosis , Myelitis/diagnosis , Schistosomiasis/diagnosis , Adult , Diagnostic Errors , Humans , Male , Myelitis, Transverse/pathology , Myelitis, Transverse/surgery , Myelography , Puerto Rico , Schistosoma mansoni/ultrastructure , Schistosomiasis/pathology , Schistosomiasis/surgery , Spinal Cord/parasitology , Spinal Cord/pathology , Spinal Cord Compression/diagnosis , Spinal Cord Compression/surgeryABSTRACT
Hydrocephalus has been identified and surgically treated with ventricular peritoneal shunts in two of 150 patients following translabyrinthine microsurgical removal of acoustic tumors. This problem has prompted a review of the subject of hydrocephalus in general and "otitic hydrocephalus" in particular in relation to contemporary extended temporal bone surgery.
Subject(s)
Ear Neoplasms/surgery , Ear, Inner/surgery , Hydrocephalus/etiology , Aged , Cerebrospinal Fluid/physiology , Female , Humans , Hydrocephalus/surgery , Male , Sinus Thrombosis, Intracranial/etiology , Spinal Puncture , Subarachnoid Hemorrhage/complications , Temporal Bone/surgerySubject(s)
Microsurgery , Vascular Surgical Procedures , Animals , Humans , Microsurgery/methods , Rats , Vascular Surgical Procedures/methodsSubject(s)
Arteries , Tissue Banks/history , Vascular Surgical Procedures/history , Chicago , History of Medicine , HumansSubject(s)
Brain Neoplasms/diagnosis , Echoencephalography , Radionuclide Imaging , Tomography, X-Ray , Computers , HumansABSTRACT
Nuclei of human neurilemoma cells exhibit deep and extensive invaginations of part of their surface. Such invaginations contain cytoplasmic matter. However, in areas of the nucleoplasm distant from the invaginations, small membrane-bound bodies, some of which contain a "nucleoid," occur either singly or grouped together and enclosed within a large membrane body. These small bodies are not considered virus-like. Degenerated nuclei from cultured tumor tissue contain spherical bodies, 130 to 230 nm in diameter, with spikes on their surface similar to those seen on envelopes of herpes-type viruses. Significance of these bodies in vivo and in vitro tumor tissues is not known.
