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Triangular Fibrocartilage: Zooming Out on MRI

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Let's zoom out of the triangular fibrocartilage.

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We now clearly see the hyaline

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cartilage of the radius and the

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funnel-shaped attachment of the TFC.

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We now clearly see the hyaline cartilage

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and capsule of the lunate, the capsule

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of the ulna with this thin capsular

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dark signal intensity reflection.

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Proximal to that reflection is

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hyaline cartilage lining

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the distal body of the ulna, the foveal attachment

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of the triangular fibrocartilage, which is

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the deep layer of the peripheral aspect of

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the TFCC, known as the ligamentum subcruentum.

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The more distal attachment of the TFC, which

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is rather fan-shaped, and climbs up along the

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styloid, mostly at the base of the styloid.

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The superficial layer of the peripheral

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attachment of the TFCC triangle out here,

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and it receives contributions from the

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dorsal and palmar radioulnar ligaments.

Report

Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

Tags

Musculoskeletal (MSK)

MRI

Idiopathic

Hand & Wrist

Congenital

Acquired/Developmental

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