RESUMEN
Eleven patients (8 males, 3 females) undergoing limb-lengthening procedures were subjected to weekly conventional radiography along with fortnightly skeletal sonography of the distraction site, to assess the rate of new bone production and complications. The radiographs were assessed for: (i) distance between the distracted bone ends, (ii) presence of new bone formation at the distraction site, (iii) regeneration of the cortical outline and (iv) overlaying soft tissue abnormality. The sonographs were assessed for: (i) distance between the distracted bone ends, (ii) rate of new bone formation, (iii) density of the new bone produced, (iv) integrity and continuity of the cortical outline and (v) overlaying soft tissue abnormality. Our results indicate the superiority of sonography over conventional radiographs in: (i) detecting early new bone formation, (ii) establishing cortical and medullary canal remodelling, (iii) detecting soft tissue complications at the distraction site and (iv) determining the presence of fluid collection at the distraction site, in patients with delayed consolidation. Conventional radiographs were more accurate in determining the distance between the two distracted bone ends, and thus the degree of distraction achieved. Ideal assessments of events at the distraction site can be achieved by a combined assessment of conventional radiotherapy and skeletal sonography.
Asunto(s)
Alargamiento Óseo , Regeneración Ósea/fisiología , Fijadores Externos , Femenino , Estudios de Seguimiento , Humanos , Diferencia de Longitud de las Piernas/etiología , Masculino , Complicaciones Posoperatorias/diagnóstico por imagenRESUMEN
The fine needle aspiration cytology (FNAC) and ultrasound radiologic features of a solitary retroperitoneal angiofollicular lymph node hyperplasia (AFLNH), hyaline vascular type are described. Based on a combination of the two, this diagnosis can be suggested in the differential diagnosis of a retroperitoneal mass.
Asunto(s)
Adolescente , Biopsia con Aguja , Diagnóstico Diferencial , Enfermedad de Castleman/patología , Humanos , Masculino , Espacio RetroperitonealRESUMEN
Ultrasonography (US) remains underutilized as a guidance tool for performing fine needle aspiration cytology (FNAC) mainly because of a lack of understanding and experience in this technique. We describe here our experience in performing 346 FNACs. In our opinion, US guided FNACs are highly accurate and safe procedures which can be done on an out-patient basis, with routinely available equipment.