Which of the following is NOT part of Phemister triad?

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Which of the following is NOT part of Phemister triad?

Phemister triad describes the classic radiographic pattern of tuberculous arthritis. It includes juxta-articular osteopenia, marginal erosions of the articular surfaces, and slow, progressive joint-space narrowing. Each element reflects the inflammatory and destructive process near the joint: bone density drops around the joint, the joint margins are eroded, and the cartilage wears away gradually over time leading to widening gaps between the bones. Linear intra-articular calcification is not part of this triad. Calcifications can appear in other conditions or as late sequelae in some chronic processes, but they are not a defining feature of tuberculous arthritis as captured by Phemister’s triad.

Phemister triad describes the classic radiographic pattern of tuberculous arthritis. It includes juxta-articular osteopenia, marginal erosions of the articular surfaces, and slow, progressive joint-space narrowing. Each element reflects the inflammatory and destructive process near the joint: bone density drops around the joint, the joint margins are eroded, and the cartilage wears away gradually over time leading to widening gaps between the bones.

Linear intra-articular calcification is not part of this triad. Calcifications can appear in other conditions or as late sequelae in some chronic processes, but they are not a defining feature of tuberculous arthritis as captured by Phemister’s triad.

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