Background:Tuberculosis (TB) remains a serious public health problem worldwide. The emergence of drug resistance and multidrug resistance (MDR) has become the main threat to TB treatment and control programs. Rapid detection is critical for the effective treatment of patients. In recent times, a new method using the colorimetric indicator resazurin has been proposed for drug susceptibility of Mycobacterium tuberculosis.Materials and Methods:In this study, the resazurin reduction assay was adapted to screw cap tubes. Using the Resazurin Tube Method (RTM), a total of 100 clinical isolates were tested against Rifampicin (RIF) and Isoniazide (INH). By visual reading, the minimum inhibitory concentrations (MICs) were obtained after eight days. The results obtained were compared with the gold standard proportion method.Results:Excellent results were obtained for RTM with a sensitivity of 100% for both RIF and INH, with a specificity of 98.7 and 95.3%, respectively. Kappa is the measure of agreement between the RTM and proportion method (PM) for RIF and INH, which was found to be 0.972 and 0.935 for RIF and INH, respectively.Conclusion:The RTM appears to be a reliable method for the rapid and simultaneous detection of MDR-TB and drug susceptibility testing (DST) of M. tuberculosis. It is simple, inexpensive, and with no biohazard risk involved.

No abstract

Testicular fibroma of gonadal stromal origin is a rare benign tumor of testis, which usually presents as a slow growing testicular mass. Intratesticular fibroma of gonadal stromal origin, with or without minor sex cord elements, must be considered, analogous to similar tumors in ovary, as a benign tumor. Until now, only 25 cases of testicular fibroma have been reported in the literature. We reported a case of testicular fibroma in a 20 years male who presented with painless right testicular enlargement since two years. Ultrasonography (USG) showed heterogeneous mass in right scrotum suggestive of testicular malignancy. Right orchidectomy was done. Histopathological diagnosis was testicular fibroma, which was confirmed by immunohistochemistry.

Nontyphoidal salmonellosis is well known clinical entity. Outbreaks of gastroenteritis, septicemia and meningitis caused by different nontyphoidal salmonellae have been reported in the past. S. choleraesuis is the highly swine adapted serotype of salmonella causing swine paratyphoid. It is extremely invasive and may be isolated from other animals, including man.We report two cases of S. cholerasuis infections, one in electric burn wound and the other in a fatal case of meningitis. In the first case the organism was repeatedly isolated from the wound. The source of infection was the patient's intestine. This is very interesting as human carriage of S. cholerasuis is rare.