A5070091250- Head and Neck Surgical Oncology
- Salivary Gland Tumors Diagnosis and Treatment
- Meningioma and schwannoma management
- Oral and Maxillofacial Pathology
- Ear and Head Tumors
- Bone Tumor Diagnosis and Treatments
- Sarcoma Diagnosis and Treatment
- Sinusitis and nasal conditions
- Facial Nerve Paralysis Treatment and Research
- Neurofibromatosis and Schwannoma Cases
- Infectious Diseases and Tuberculosis
- Soft tissue tumor case studies
- Tumors and Oncological Cases
- Vascular Malformations Diagnosis and Treatment
- Head and Neck Anomalies
- Trigeminal Neuralgia and Treatments
- Cerebrospinal fluid and hydrocephalus
- Cerebral Venous Sinus Thrombosis
- Vestibular and auditory disorders
- Glioma Diagnosis and Treatment
- Teratomas and Epidermoid Cysts
- Adrenal and Paraganglionic Tumors
- Soft tissue tumors and treatment
- Pituitary Gland Disorders and Treatments
- Vascular Malformations and Hemangiomas
Tulane University
2016-2025
Pontificia Universidad Católica del Ecuador
2022
Tulane Medical Center
2006-2018
University Medical Center New Orleans
2000-2018
Colegio de Postgraduados
2016-2017
The University of Queensland
2017
University of Hong Kong
2017
Hong Kong Polytechnic University
2017
University Hospital and Clinics
2006-2015
University Medical Center
1976-2015
Cysticercosis is a parasitic disease in which man serves as the intermediate host of Taenia solium, pork tapeworm. The larvae have predilection for central nervous system and can cause variety neurologic psychiatric symptoms. Areas involvement are classified intraventricular, parenchymal, arachnoidal, mixed. diagnosis made primarily by roentgenographic spinal fluid examinations. authors reviewed 232 cases cysticercosis involving system. It was found that computed tomography useful tool...
The radiological findings in 22 patients with malignant lymphoma of the nervous system are reviewed relation to clinical and histological features. were grouped into four major categories: intracranial, orbital, nasopharyngeal, spinal. A fifth category, complications, was considered separately. common neuroradiological manifestations compared recent literature.
The anatomic, clinical and roentgenographic features of tumors the chemo-receptor system head neck are reviewed. importance tomography appropriate angiography for accurate evaluation early detection these is stressed.
Hemangiopericytomas are rare soft-tissue neoplastic lesions that can arise in any part of the body. They mesenchymal tumors account for 3 to 5% all sarcomas and 1% vascular tumors. originate extravascular cells (pericytes). Some 15 30% hemangiopericytomas occur head neck; these, approximately sinonasal area. We describe our brief retrospective review 7 histologically proven cases hemangiopericytoma, we discuss imaging characteristics clinical pathologic findings these patients.
✓ Trigeminal neurinomas are rare, benign tumors, amenable to surgery. The characteristic features of these lesions discussed and illustrated with two cases. importance the use various radiographic techniques for evaluation tumors is stressed.
We report the case of a 41-year-old man who presented with progressive right-sided ear pressure, otalgia, hearing loss, tinnitus, and intermittent otorrhea. Computed tomography magnetic resonance imaging detected soft-tissue mass in right mastoid intracranial invasion erosion through tegmen tympani cortex. Histopathologic examination was consistent an inflammatory pseudotumor (plasma cell granuloma). These lesions rarely occur temporal bone. When they do, are locally destructive can erode...
Background The vascular anatomy of the supraclavicular artery island (SAI) flap has been investigated using both cadaveric anatomic dissections and angiographic studies. Accurate preoperative evaluation localization its pedicle confirms location, course, variation, improves success. objective this report is to demonstrate utility multislice computed tomography (CT) angiography for confirming presence SAI when planning head neck reconstruction. Methods Patients were studied 64-multislice CT...
A brief history of the theories pathogenesis origin neuroepithelial cysts is presented. An more diffuse than paraphysis seems most likely in our opinion, and we attempt to substantiate this theory with several cases from series. One posterior third ventricular cyst one fourth ventricle are demonstrated roentgenographically. Also included series a case showing suprasellar calcification on plain skull roentgenograms, not previously reported cysts, measuring 9 cm, largest yet reported.
An unusual case of extensive ossification the posterior longitudinal ligament cervical spine is presented. No symptoms referable to ossified were elicited prior acute herniation an intervertebral disk through ligament. Spinal cord compression produced by and was demonstrated myelography verified surgical autopsy findings.
INTRACRANIAL SOLITARY CHONDROMA OF DURAL ORIGINENRIQUE PALACIOS, M.D.Audio Available | Share
The authors report and discuss the unusual clinical roentgenographical features of three cases angioblastic meningioma with extracranial metastases. primary lesions occurred in cervical canal, parasagittal region, posterior fossa. Metastases were to lungs, liver, pancreas, kidneys.
THE APLASTIC HYPOPLASTIC LUMBAR PEDICLEMARTIN E. MORIN, M.D. and ENRIQUE PALACIOS, M.D.Audio Available | Share
During special procedures, radiologists may receive substantial radiation exposure, especially to the unprotected lens of eye: 92% a radiologist's exposure at arteriography is due radiography time contrast medium injection. The mean per exam 5.8 mR for cerebral and 27.1 abdominal arteriograms. Unshielded by lead apron, front-collar film badge overestimates 20% underestimates Since most occurs during injection, manual injection should be avoided whenever possible.
El objetivo de la presente investigación es establecer el impacto que ha tenido cambio climático y variabilidad climática sobre Distrito Metropolitano Quito (DMQ) sus alrededores en los últimos años. De esta manera, se han realizado dos tipos análisis tendencias 30 años datos proporcionados por INAMHI (Instituto Nacional Meteorología e Hidrología): primero busca evidenciar cambios graduales, a través del mensuales temperaturas máximas, mínimas, precipitación, heliofanía, humedad relativa...