Penetrating nose and maxillary sinus injury with a metal part of a military gun.

Foreign bodies (FBs) in the paranasal sinuses are rare, whether iatrogenic or traumatic. One of the most common causes of such traumatic injuries is gunshot wounds from the bullets. Removing FBs from the paranasal sinuses usually needs endoscopic or open surgery. We present the case of a 22-year-old male soldier who sustained a penetrating injury of his nose and maxillary sinus with an iron rod that was a part of his gun, which was removed without either endoscopic or open paranasal sinus surgery.

Kidney Allograft Stone after Kidney Transplantation and its Association with Graft Survival.

BACKGROUND: It is said that renal transplantation lithiasis is rare. However, literature has some different frequencies in this field and most of the studies related to this issue are case reports. Also the exact effect of this complication on the graft survival rate is not clear. OBJECTIVES: To determine the prevalence of nephrolithiasis among kidney transplant recipients and evaluate its association with the graft survival. METHODS: We conducted a retrospective study to determine the prevalence of renal stone among 574 kidney transplant patients aged ≥18 years who had undergone renal transplantation in Baqiyatallah Transplant Center between 1990 and 2010. Cox regression analysis was used to determine the effect of renal stone on the graft survival. RESULTS: The mean±SD follow-up time was 55±53 months. Kidney stones were diagnosed in 31 (4.4%) of all 574 kidney transplants studied. Cox regression analysis revealed that nephrolithiasis after transplantation had no significant effects on the survival of the transplanted kidney (OR 1.04, CI: 0.708-1.54). CONCLUSION: For the first time, we showed that nephrolithiasis in recipients does not have a significant effect on the transplant survival.