Disease A-Z Library

Degenerative Bones, Joints, and Spine Care (A – Z)

Browse plain-English disease and condition guides, including symptoms, causes, diagnosis, treatment options, prevention, and when to seek medical care.

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Diseases A-Z

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Disease A-Z Library

Thoracic Disc Asymmetric Displacement

Thoracic Disc Asymmetric Displacement is a form of intervertebral disc pathology occurring in the mid-back (thoracic spine), where the disc material pushes unevenly beyond its normal...

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Thoracic Disc Focal Displacement

Thoracic disc focal displacement refers to a localized shift of the intervertebral disc material—specifically the nucleus pulposus or annulus fibrosus—at a single, well-defined point in the...

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Thoracic Disc Circumferential Displacement

Thoracic disc circumferential displacement—often called a circumferential bulge—occurs when the intervertebral disc in the thoracic spine pushes outward evenly around its entire edge. Unlike a focal...

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Thoracic Disc Foraminal Displacement

Thoracic Disc Foraminal Displacement occurs when part of an intervertebral disc in the thoracic spine bulges or herniates into the neural foramen—the opening through which spinal...

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Thoracic Disc Posterior Displacement

Posterior displacement of a thoracic intervertebral disc happens when the soft, gel‑like center of the disc (nucleus pulposus) pushes backward through its tough outer ring (annulus...

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Thoracic Disc Central Displacement

Thoracic disc central displacement occurs when the soft inner core (nucleus pulposus) of an intervertebral disc in the middle back pushes directly backward into the spinal...

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Thoracic Disc Displacement at T12–L1

Thoracic disc displacement at T12–L1 is a condition where the intervertebral disc—located between the twelfth thoracic (T12) vertebra and the first lumbar (L1) vertebra—gets pushed out...

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