Which condition typically presents in younger individuals aged 10-20 and predominantly affects men?

Which condition typically presents in younger individuals aged 10-20 and predominantly affects men?

• A. Ankylosing spondylitis
• B. Gout
• C. Gallstones
• D. Osteoid osteoma

Answer: (D)

A young patient with focal bone pain that is worst at night and relieved by NSAIDs is a classic presentation of a benign bone tumor that favors adolescence and young adulthood, especially in males. The pain pattern is driven by prostaglandin production in a small central nidus, leading to intense but localized discomfort that often improves with nonsteroidal anti-inflammatory drugs. On exam you might find point tenderness over a specific spot, and imaging typically shows a tiny nidus with surrounding sclerosis, best seen on CT. This pattern helps distinguish it from other conditions. Inflammatory back pain from an enemy like ankylosing spondylitis tends to involve the axial skeleton with morning stiffness and improves with movement, rather than presenting as a single focal bone pain. Gout usually affects older individuals with sudden joint attacks and hyperuricemia, not a localized long-bone pain in a teenager. Gallstones cause visceral abdominal symptoms rather than musculoskeletal bone pain.

A young patient with focal bone pain that is worst at night and relieved by NSAIDs is a classic presentation of a benign bone tumor that favors adolescence and young adulthood, especially in males. The pain pattern is driven by prostaglandin production in a small central nidus, leading to intense but localized discomfort that often improves with nonsteroidal anti-inflammatory drugs. On exam you might find point tenderness over a specific spot, and imaging typically shows a tiny nidus with surrounding sclerosis, best seen on CT.

This pattern helps distinguish it from other conditions. Inflammatory back pain from an enemy like ankylosing spondylitis tends to involve the axial skeleton with morning stiffness and improves with movement, rather than presenting as a single focal bone pain. Gout usually affects older individuals with sudden joint attacks and hyperuricemia, not a localized long-bone pain in a teenager. Gallstones cause visceral abdominal symptoms rather than musculoskeletal bone pain.