RESUMO
Olfactory ensheathing cells (OECs) are found in the olfactory bulb and olfactory nasal mucosa. They resemble Schwann cells on light and electron microscopy, however, immunohistochemical staining can distinguish between the two. There are less than 30 cases of olfactory groove schwannomas reported in the literature while there is only one reported case of OEC tumor. We report an OEC tumor in a 42-year-old male and discuss the pathology and origin of this rare tumor.
RESUMO
Desmoplastic fibroma is a benign but locally aggressive tumor arising usually from the mandible, pelvis and long bones with a potential for recurrence. We report a case of desmoplastic fibroma of the frontal bone in a young male.
Assuntos
Actinas/metabolismo , Adolescente , Neoplasias Ósseas/metabolismo , Fibroma Desmoplásico/metabolismo , Osso Frontal , Humanos , Imuno-Histoquímica/métodos , Masculino , Proteínas S100/metabolismo , Tomografia Computadorizada por Raios X/métodosRESUMO
BACKGROUND: Lumbar disc prolapse is a common problem and the current surgical standard for its treatment is a microsurgical discectomy. Microendoscopic discectomy (MED) is a minimally invasive spinal procedure being done successfully for prolapsed intervertebral disc disease. AIMS: We report the technique, outcome and complications seen in 107 cases of prolapsed lumbar intervertebral disc who underwent MED. SETTING AND DESIGN: The study was carried out at the Department of Neurosurgery, at a tertiary hospital in South India and the data was collected prospectively. MATERIALS AND METHODS: 107 patients with prolapsed lumbar intervertebral disc who were seen at our institution between November 2002 and January 2006 were included in the study. Data was collected prospectively. The METRx system (Medtronic Sofamor Danek, Memphis,TN) was used to perform MED. Outcome assessment was done by the modified Macnab criteria. RESULTS: 107 patients (67 males, 40 females) underwent MED for prolapsed lumbar intervertebral disc. Follow up ranged from 2 to 40 months with a mean follow up 12.9 months. Seventy six patients had an excellent outcome, 22 patients had a good outcome, 5 patients had a fair outcome and 3 patients had a poor outcome. One patient with a long dural tear required conversion to a standard microdiscectomy and was excluded from outcome assessment. Complications included dural puncture with K-wire (1), dural tear (2), superficial wound infection (1), discitis (1) and recurrent disc prolapse (2). CONCLUSIONS: Microendoscopic Discectomy (MED) is a safe and effective procedure for the treatment of prolapsed lumbar intervertebral disc.