The earliest changes for evaluation of stress fractures are seen in

Answer: d) MRISTRESS FRACTURESMay occur in the pelvis, femoral neck, tibia, navicular and metatarsals.The metatarsals are involved in 55% of cases, whereas the sesamoids and talus are involved in less than 1%Occurs d/t significant increase in training and activity (Runner's fracture).Risk factors: female athlete, poor nutrition, low bone density, and a history of menstrual disturbance.MRI or technetium bone scans are the best diagnostic tests.Treatment: rest and avoidance of high-impact activities until healing occurs.