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Metastases (osteoblastic, osteolytic, and combination)
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Osteoblastic
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Ch 10 Pathology

Lumbar/Sacrum/Coccyx

QuestionAnswer
Metastases (osteoblastic, osteolytic, and combination) Is the transfer of a cancerous lesion from one area to another via blood and lymphatics.
Osteoblastic proliferative bony lesion of increased density
Osteolytic destructive lesions with irregular margins
Combination (Metastases-osteoblastic and osteolytic) "moth-eaten" appearance of bone
Scoliosis Is the lateral curvature of the vertebral column with possible vertebral rotation. (thoracic and lumbar region)
Spina Bifida Is a congenital defect that occurs when the laminae fail to unite at the midline-where the spinous process is normally found. Involves the incomplete development of the spinal cord or its comerings. Exposes part of the spinal cord.most often at L5
Spondylolisthesis Involves forward movement of one vertebra in relation to another. caused by a defect in the pars interarticularis, spondylolysis, or osteoarthritis. Most often occurs at L5-S1 but also L4-L5.
Ankylosing Spondylitis Is inflammatory condition usually begins in the SI joints and progresses up the vertebral column. intervertebral and costovertebral joints fuse and become rigid. "bamboo appearance".
Compression Fracture Involves the collapse of a vertebral body (anterior edge) as the superior and inferior surfaces of the vertebral body are driven together. Due to trauma, osteoporosis, or metastatic disease. Tarely causes a neurologic deficit.
Chance Fracture Results from a hyperflexion force, such as wearing lap-type seat belts. Causes fractures through the vertebral body and posterior elements.
Herniated Nucleus Pulposus/Slipped Disk Usually from improper lifting. Occurs when the nucleus pulposus protrudes through the fibrous outer layer pressing on the spinal cord or nerves; L4-L5 levels, causes sciatica.
Spondylolysis The breaking down of the vertebra resulting from aplasia (lack of development) of the vertebral arch and seperation of the pars interarticularis. Neck of the Scotty dog appears broken (oblique) common at L4-L5.
Created by: Mr. Massive
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