RESUMEN
PURPOSE: To compare the sensitivity and specificity of three magnetic resonance (MR) imaging signs for the diagnosis of superior labrum anterior-posterior (SLAP) tears. MATERIALS AND METHODS: The study involved 23 consecutive patients with a type 2, 3, or 4 SLAP tear at arthroscopy and 31 age-matched control patients with an arthroscopically normal or type 1 SLAP lesion. The superior labrum was evaluated on MR images for high signal intensity extending to the articular surface in the posterior third of the labrum, an irregular or laterally curved area of high signal intensity, or two high-signal-intensity lines. RESULTS: The sensitivity, specificity, and accuracy of posterior high signal intensity for a type 2, 3, or 4 SLAP tear were 48%, 94%, and 74%, respectively, for observer 1 and 61%, 81%, and 72%, respectively, for observer 2. For laterally curved area of high signal intensity, these values were 65%, 84%, and 76%, respectively, and 56%, 84%, and 72%, respectively. For two high-signal-intensity lines, these values were 17%, 94%, and 61%, respectively, and 13%, 94%, and 59%, respectively. For the presence of either posterior or laterally curved high signal intensity, the sensitivity was 65% for both observers, whereas the specificity was 84% for observer 1 and 74% for observer 2. The kappa values for interobserver agreement were 0.60 for posterior high signal intensity and 0.58 for laterally curved high signal intensity. CONCLUSION: Laterally curved and posterior high signal intensities are specific signs for distinguishing a SLAP tear from a normal-variant superior sublabral recess.
Asunto(s)
Imagen por Resonancia Magnética/métodos , Lesiones del Hombro , Articulación del Hombro/patología , Traumatismos de los Tendones , Tendones/patología , Adolescente , Adulto , Anciano , Artroscopía , Femenino , Humanos , Imagen por Resonancia Magnética/instrumentación , Imagen por Resonancia Magnética/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Estudios Prospectivos , Rotura , Sensibilidad y EspecificidadRESUMEN
Splenogonadal fusion is a rare developmental anomaly usually presenting as a scrotal mass. The imaging findings and etiology of this condition are discussed. Knowledge of this entity may help to prevent unnecessary orchiectomy.
Asunto(s)
Anomalías Múltiples/diagnóstico por imagen , Bazo/anomalías , Enfermedades del Bazo/diagnóstico por imagen , Enfermedades Testiculares/diagnóstico por imagen , Testículo/anomalías , Diagnóstico Diferencial , Humanos , Lactante , Masculino , Bazo/diagnóstico por imagen , Enfermedades del Bazo/congénito , Enfermedades Testiculares/congénito , Testículo/diagnóstico por imagen , Testículo/cirugía , UltrasonografíaAsunto(s)
Fístula Arteriovenosa/etiología , Tronco Braquiocefálico/lesiones , Venas Braquiocefálicas/lesiones , Enfermedad Iatrogénica , Marcapaso Artificial/efectos adversos , Aortografía , Fístula Arteriovenosa/diagnóstico por imagen , Tronco Braquiocefálico/diagnóstico por imagen , Venas Braquiocefálicas/diagnóstico por imagen , Cateterismo Cardíaco , Electrodos Implantados/efectos adversos , Resultado Fatal , Femenino , Humanos , Persona de Mediana Edad , Vena SubclaviaRESUMEN
In the majority of cases, carcinoma of the thyroid presents as a cold nodule by radioiodine and Tc-99m sodium pertechnetate scintigraphy. Whereas the presence of a hot nodule usually implies a benign entity, it does not provide complete assurance against thyroid malignancy. Presented is a rare case of metastatic pure papillary thyroid carcinoma appearing as a hot nodule on Tc-99m sodium pertechnetate and I-123 sodium iodide scintigraphy. The implications of such a case, its management, and review of the pertinent literature are discussed.
Asunto(s)
Carcinoma Papilar/diagnóstico por imagen , Neoplasias de la Tiroides/diagnóstico por imagen , Nódulo Tiroideo/diagnóstico por imagen , Adolescente , Carcinoma Papilar/secundario , Femenino , Humanos , Radioisótopos de Yodo , Cintigrafía , Radiofármacos , Yoduro de Sodio , Pertecnetato de Sodio Tc 99m , Neoplasias de la Tiroides/patologíaRESUMEN
Castleman disease, or angiofollicullar hyperplasia, is a rare cause of lymph node enlargement. This most commonly occurs within the thorax, although rare extrathoracic presentations have been described. Only two cases with hepatic localization have been reported. We present a case of Castleman disease within the porta hepatis masquerading as a hepatic neoplasm.