RESUMO
Colorectal cancer (CRC) is one of the most common malignancies with a dismal prognosis. Indeterminate pulmonary nodules (IPNs) are lung nodules with uncertain nature, generally defined as a noncalcified nodule smaller than 10 mm in diameter or solid nodule no greater than 20 mm at maximum diameter without malignant character. With the widespread use of preoperative staging computed tomography (CT) of the chest and follow-up CT, IPNs are frequently detected in patients with CRC, which makes diagnosis more controversial. Generally, progression to pulmonary metastasis from IPNs is rare. Thus, no further interventions were needed for IPNs in CRC patients. A second reviewing of scans with IPNs by both clinicians and experienced thoracic radiologists may help to obtain a more accurate diagnosis.
Assuntos
Neoplasias Colorretais/complicações , Nódulos Pulmonares Múltiplos/diagnóstico por imagem , Humanos , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/diagnóstico por imagem , Nódulos Pulmonares Múltiplos/complicações , Radiografia Torácica , Tomografia Computadorizada por Raios XRESUMO
The present paper reports on the effectiveness of a repellent coating for the first time. The repellent coating was made by combining DETA (N,N-diethyl-meta-toluamide) with slow-releasing reagent. With this coating employed in the laboratory against Aedes aegypti, the rate of blood-sucking was 3.9-9.5% and the rate of protection was 88.9-95.3% for 1-720 days. During 1-77 days' field trial, the RPI (Relative Population Index) was 0-8.98% in the day-time and 0.74-17.15 during the night-time against Anopheles sinensis, Culex pipiens pallens and Culex tritaeniorhynchus. It is concluded that the repellent coating is effective against mosquitoes, safe and prolongs the protection time following exposure to mosquitoes.