RESUMEN
A one month old male child presented with respiratory distress since day 10 of life. There was intercostal retraction and decreased air entry on the right side. Investigations revealed a well defined cystic mass in the posterior mediastinum with vertebral anomalies, the cyst was excised by posterolateral thoracotomy. Histopathology revealed it to be an enteric foregut duplication cyst.
Asunto(s)
Coristoma/complicaciones , Intestinos , Quiste Mediastínico/complicaciones , Síndrome de Dificultad Respiratoria del Recién Nacido/etiología , Humanos , Recién Nacido , MasculinoRESUMEN
A 2 year old male child presented with mass on right side of abdomen. The clinical diagnosis of renal lump was made and rest of the examination did not reveal any abnormality. His intravenous pyelography showed non-functioning left kidney. Cystoscopy and ascending pyelography on left side showed normal ureteric orifices and crossing of the left ureter to opposite side. Ectopic kidney was removed without any damage to the lower pole of the right kidney.
Asunto(s)
Riñón/anomalías , Preescolar , Humanos , Riñón/diagnóstico por imagen , Masculino , Nefrectomía , UrografíaRESUMEN
Baclofen, the parachlorophenyl analog of GABA, was found to induce catalepsy and to inhibit the traction response in mice. However, baclofen pretreatment, instead of antagonizing methamphetamine stereotypy and apomorphine-induced cage climbing behavior, was found to potentiate these behaviors, thereby ruling out the possibility of its possessing postsynaptic dopamine (DA) receptor blocking activity. The possible mechanism involved in the induction of catalepsy and in the inhibition of the traction response by baclofen is discussed on the basis that baclofen, by inhibiting the firing of the nigrostriatal and mesolimbic DA neurons, reduces the release of DA and thereby produces a functional lack of DA at postsynaptic DA receptor sites with resultant induction of catalepsy and inhibition of the traction response. Further, the hyper-responsiveness to methamphetamine and apomorphine is explained on the basis that, as the postsynaptic DA receptors are acutely deprived of their transmitter, following baclofen pretreatment, they become supersensitive to the DA agonists.