RESUMEN
<p><b>BACKGROUND</b>In grass-roots hospitals, the rate of misdiagnosis for lung cancer is rather high. The aim of this study is to investigate the reasons of misdiagnosis for lung cancer.</p><p><b>METHODS</b>A total of 31 patients with signs out of lung from 1987 to 2004 were analyzed retrospectively.</p><p><b>RESULTS</b>There were different degrees of misdiagnosis in these 31 patients. One half of misdiagnostic reasons were medical factors, and the other half were due to patients' carelessness (15 cases/16 cases, 48%/52%). The medical factors included lack of knowledge of medical workers about tumor and limited conditions in grass-roots hospitals. The patient factor was mainly that they did not receive medical treatment in time.</p><p><b>CONCLUSIONS</b>The key point of reducing the misdiagnostic rate of lung cancer is to improve the professional level of medical workers and popularize peoples' knowledge about lung cancer.</p>
RESUMEN
Objective To study the mechanism of serum thyroxin and insulin change after hemihepatectomy. Methods The hemihepatectomy was performed in rabbits, the fasting peripheral blood samples were drawn on the day prior to surgery, and 24 hour, 48 hour, the first week, one month after operation respectively for monitoring the serum thyroxin and insulin.Results The level of TT 3 was (1.93?0.47) nmol/L, TT 4 (53.56?8.4) nmol/L preoperatively. The levels of TT 3 and TT 4 significantly decreased at 24 hour postoperatively, and gradually rose at 48 hour and up to normal levels in the first month postoperatively. The level of insulin rapidly rose immediately after operation, and began to decrease in the first week, and returned to the preoperative level in one month after operation. Conclusions The syndrome of normal thyroid disease and the syndrome of non thyroid disease can occur after hemihepatectomy; and hyperinsulinemia also can occur after hemihepatectomy.