SKELETAL DYSPLASIAS

• Osteogenesis imperfecta
• Osteopoikilosis
• Osteopetrosis
• Osteochondromatosis
• Melorheostosis

Osteogenesis imperfecta

diffuse cancellous osteopenia (coarse primary trabeculae) diminished tubular bone girth

Osteopoikilosis

numerous small, well-defined homogeneous circular foci of increased density (bone islands) cortical-like densities in cancellous bone periarticular, symmetrical, at ends of long bones also found in tarsal bones

Osteopetrosis

diffuse bone sclerosis "bone within bone" appearance aka "marble bone disease"

Osteochondromatosis

• aka multiple cartilaginous exostoses
• multiple exostoses near diaphyseal side of physeal line (in child)
• appear in first two decades of life as painless bumps near ends of long bones
• causes bone deformity and shortening
• 5% malignant transformation

Melorheostosis

radiographic presentation limited to a single limb hyperostosis is seen along bone periphery, extending along length of bone simulates candle wax flowing down side of lit candle wavy, sclerotic bony contour (endosteal usually)

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Questions for the Doc?

Teaching Files

• Principles of Radiographic Interpretation
• Normal Variants
• Systematic Approach to Bone & Joint Abnormalities
• Abnormalities of Position/Adult: Eyeballing the Biomechanical
• Abnormalities of Position/Child: Positional Deformities
• Normal Developmental Variants
• Tarsal Coalitions
• Skeletal Dysplasias
• Fractures
• Osteonecrosis & Osteochondrosis
• Arthritis
• Infection
• Metabolic, Endocrine, and Nutritional Disorders
• Bone Tumors & Tumor-Like Processes

© Copyright 1998, Robert A. Christman, D.P.M.

These articles and figures may not be published, reposted, or redistributed without permission from Dr. Christman.

This page was updated May 5, 1998.