U.S. Air Force medic SSG Jonathan Kowalski talks while checking the blood pressure of an Afghan boy who suffers from hydrocele during a medical check up at the hospital of Forward Operation Base (FOB) Salerno in Khowst province, December 29, 2009. Hydrocele is a medical condition which a patient suffers from an accumulation of fluid around the genital area. REUTERS/Zohra Bensemra (AFGHANISTAN - Tags: HEALTH CONFLICT MILITARY)