ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
X-ray (front view) of the abdomen of a 66 year old patient, showing a compression fracture to the lumbar vertebra (L1, white ring, at upper centre) due to osteoporosis. Osteoporosis (brittle bone disease) in which bone density is lost is most common in women after the menopause, and fracture of the vertebral bones can lead to kyphosis (humpback).
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