RESUMO
Nasopharyngeal extension of the glomus tympanicum is rare. Only 2 cases have been reported in the literature to date. We present a reported case of a large nasopharyngeal extension of recurrent glomus tympanicum, with various kinds of imaging and histopathology and a review of the literature.
Assuntos
Angiografia Digital , Neoplasias da Orelha/irrigação sanguínea , Neoplasias da Orelha/diagnóstico , Tumor de Glomo Timpânico/diagnóstico , Imageamento por Ressonância Magnética , Nasofaringe/patologia , Recidiva Local de Neoplasia/irrigação sanguínea , Recidiva Local de Neoplasia/diagnóstico , Tomografia Computadorizada por Raios X , Biópsia , Diagnóstico Diferencial , Neoplasias da Orelha/patologia , Orelha Média/irrigação sanguínea , Orelha Média/patologia , Epistaxe/etiologia , Tuba Auditiva/irrigação sanguínea , Tuba Auditiva/patologia , Feminino , Tumor de Glomo Timpânico/irrigação sanguínea , Tumor de Glomo Timpânico/patologia , Humanos , Pessoa de Meia-Idade , Nasofaringe/irrigação sanguínea , Invasividade Neoplásica , Recidiva Local de Neoplasia/patologia , RecidivaRESUMO
Chondrosarcoma of the hyoid bone is rare. Only 14 cases have been reported in the literature, to date. We present a case of chondrosarcoma of the hyoid bone with imaging, surgical, and pathologic correlation, and a review of the literature.
Assuntos
Neoplasias Ósseas/diagnóstico , Condrossarcoma/diagnóstico , Osso Hioide , Adulto , Neoplasias Ósseas/patologia , Condrossarcoma/patologia , Feminino , Humanos , Osso Hioide/diagnóstico por imagem , Osso Hioide/patologia , Imageamento por Ressonância Magnética , Tomografia Computadorizada por Raios X , UltrassonografiaRESUMO
PURPOSE: To clarify the accuracy, sensitivity, and specificity of optic tract edema in the diagnosis of craniopharyngiomas. MATERIAL AND METHODS: Preoperative magnetic resonance images (MRIs) of 49 patients (between May 1996 and March 2003) who had a diagnosis of parasellar masses were blindly reviewed by two radiologists. The spread of edema surrounding the tumor on the coronal TSE T2-weighted images was analyzed. Sensitivity and specificity were calculated based on the numbers in this series and also pooled numbers from previous known reported series. RESULTS: Edema along the optic tracts was detected in 7 of 11 craniopharyngiomas, giving a sensitivity of 63.6% (95% CI = 30.8-89.1) for our series and 66.7% (95% CI = 47.2-82.7) for the pooled numbers. The specificity was 100% (95% CI = 90.7-100.0) for our series and 93.9% (95% CI = 87.1-97.7) for the pooled numbers. None of the 28 pituitary macroadenomas, 4 meningiomas, 2 hypothalamic astrocytomas, 2 germinomas, 1 mixed-germ cell tumor and 1 arachnoid cyst in our study showed edema of the optic pathways. CONCLUSION: Optic tract edema, commonly seen in craniopharyngiomas, is a useful MR finding for distinguishing craniopharyngiomas from other parasellar tumors with considerable sensitivity and high specificity.
Assuntos
Craniofaringioma/diagnóstico , Edema/diagnóstico , Imageamento por Ressonância Magnética/métodos , Neoplasias Hipofisárias/diagnóstico , Vias Visuais/patologia , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Craniofaringioma/complicações , Diagnóstico Diferencial , Edema/etiologia , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Neoplasias Hipofisárias/complicações , Valor Preditivo dos Testes , Estudos Retrospectivos , Sensibilidade e EspecificidadeRESUMO
This study of 300 patients with severe head injury evaluated the clinical predictors determined after admission and associated with significant increase of poor outcome. The overall poor outcome was 58%. Logistic regression showed that age, status of basal cisterns on initial CT, Glasgow Coma Scale score (GCS) at 24 h after injury and electrolyte derangement occurring during admission strongly correlated with the outcome. A probability diagram of the outcome determined at 24 h after injury from the combination of the significant predictive factors provides a basis for determining the interventions to the appropriate target population. Intracranial pressure monitors with sophisticated devices may not be suitable for a developing country. Allocation of resources toward development of adequate intensive care beds and well-trained staff combined with serial CT imaging may be an alternative approach for the improvement of the outcome of severe head injury.
