Normal and abnormal radiographic anatomy of the skeleton; adult and pediatric sections

In the appendicular skeleton, one is mostly concerned with the diarthrodial synovial joints. While this type of joint is also found in the axial skeleton (the facet (a.k.a. aphophyseal) joints and portions of the sacroiliac joints), there are also many amphiarthrodial joints which are not synovial (the intervertebral disc joints)....

Wheeless' Textbook of Orthopaedics See: - Osteomalacia: - Vit D Abnormalities: - Discussion: - rickets is an osteomalacic syndrome in which there is an inability to mineralize chondroid and osteoid; - lack of...

Lack of Vitamin D will reveal itself in those areas in the bone that show the greatest activity. Growth processes in the immature skeleton cause Rickets and structural responses to stress in the mature skeleton give rise to Osteomalacia. In the immature skeleton, the greatest activity is the ossification boundary...

Author: Mark Clayer, MD, MBBS, FRACS, FAOrthA, Head of Musculoskeletal Tumor Service, Department of Orthopaedics and Trauma, Queen Elizabeth Hospital; Senior Visiting Medical Specialist, Royal Adelaide Hospital and Women's and Children's Fibrous dysplasia is a developmental dysplastic disorder of bone in which immature woven bone is formed directly from abnormal fibrous...

Botond K. Szabó Csaba Bohata Albert Szent-Györgyi Medical University Labelled Xray Images of the following normal views - Head, Spinal Column Skull (Lateral) Skull (Anteroposterior) Cervical Spine (Lateral) Cervical Spine (Anteroposterior) Upper Extremity, Shoulder Girdle Shoulder Joint (Anteroposterior) Elbow Joint (Anteroposterior) Elbow Joint (Lateral) Forearm (Anteroposterior) Forearm (Lateral) Wrist Joint (Posteroanterior) Wrist Joint (Lateral) Hand (Dorsovolar) Hand (Oblique) Hand (Carpal Tunnel) Lower Extremity, Pelvis Pelvis (Anteroposterior) Hip Joint (Anteroposterior) Hip...

Description Fibrous dysplasia is a chronic condition of the skeleton where a portion of a bone develops abnormally. The condition begins before birth. It is caused by a gene mutation that affects the cells that produce bone. The mutation causes the cells to form an abnormal type of fibrous bone... Highly Reputable

In the appendicular skeleton, one is mostly concerned with the diarthrodial synovial joints. While this type of joint is also found in the axial skeleton (the facet (a.k.a. aphophyseal) joints and portions of the sacroiliac joints), there are also many amphiarthrodial joints which are not synovial (the intervertebral disc joints)....

Lipohaemarthrosis.
Active bone marrow in the mature skeleton is predomiantly localized to axial skeleton, including pelvis. The medulla limb bones contain mostly fat. This fat is liquid at body temperature and may be liberated from the bone by trauma. Where there is blood and/or joint-effusion and free-fat, the particular bounded tissue...

Definition
Deficiency of calcium and/ or phosphate which results in inadequate osteoid mineralization
  * Less mineralized bone per volume of bone
  * Increased uncalcified osteoid
Rickets - immature skeleton
Osteomalacia - mature skeleton
Bone formation is slowed & unmineralized osteoid accumulates along new bone surfaces
Remember that osteoid is the organic component of woven bone...

Caffey disease, or infantile cortical hyperostosis, is a benign, rare, proliferating bone disease affecting infants. Caffey and Silverman first reported this disease as a distinct entity in 1945. Classically, Caffey disease occurs in the early part of the first year of life (<5 mo). It is characterized by a clinical triad...

Pathologic Humerus Fracture Reuben Gobezie MD, Brent A. Ponce MD, John Ready MD DEPARTMENT OF ORTHOPAEDICS, BRIGHAM AND WOMEN'S HOSPITAL, BOSTON MA Introduction Bony lesions may result in pathologic fractures. These lesions, when not of mesenchymal origin, commonly include myeloma, lymphoma, and most commonly metastastic carcinoma. The axial skeleton is the third most common...

Also known as solitary Langerhan's cell histiocytosis (LCH), eosinophilic granuloma is the most benign member of a group of disorders of the reticuloendothelial system, including Hand-Schuller-Christian disease and disseminated LCH. Langerhans cell histiocytosis is a spectrum of diseases that primarily affects the skeleton but can involve the reticuloendothelial system...

Patient Support Site for Fibrous Dysplasia What is Fibrous Dysplasia Fibrous dysplasia is a chronic condition of the skeleton where a portion of a bone develops abnormally. The condition begins before birth. It is caused by a gene mutation that affects the cells that produce bone. The mutation causes the cells...

Classification of Dysplasias

Full text of Review article in JBJS B 2001 83-B:471-81

Bone, the material that makes vertebrates distinct from other animals, has evolved over several hundred million years to become a remarkable tissue. Bone is a material that has the same strength as cast iron, but achieves this while remaining as light as wood.

Index to Skeleton radiology teaching case database in pathology order

Sickle cell disease is one of the more common abnormalities of haemoglobin. The single substitution of valine for glutamic acid alters the folding of the protein and its response to deoxygenation. The inheritance is autosomal dominent, but generally the disease is more severe in homozygous individuals. Other haemoglobinopathies may affect...

Gorlin syndrome is an autosomal dominant cancer. Patients with this rare syndrome often have several organ anomalies, many of which are subtle. Study of patients with Gorlin syndrome yields useful information about its neural development and carcinogenesis. Clinicians should be familiar with Gorlin syndrome because patients tend to develop multiple...

Features in the image
Immature skeleton. There are multiple destructive foci in the proximal femora and adjoining pelvis.
Our records do not indicate whether there were any Thymus enlargement, which would be common in a child with this condition. Such diffuse bone involvement is a feature of this disorder which occurs mostly...

Failure of spinal or neural tube fusion
The first feature to appear on the embryological plate is the neural groove that deepens with in-folding of its edges to form the neural tube. The openings of the tube close at 26-28 days after conception. Failure of closure at the top end causes...

Paget's disease is disorder of bone remodeling which is focal (located in discrete areas in the bones and not throughout the entire skeleton). The abnormal remodeling results in overgrowth or deformity of bone. Paget's disease usually occurs in adults who are older than 55 years old, and there are slightly...

Malunion may be defined as healing of a fracture in an abnormal (nonanatomic) position. In the hand, it presents a combined functional and aesthetic problem. The management of malunion of hand fractures is more complex than the management of malunion of fractures elsewhere in the skeleton. Good hand function depends...

Madelung's deformity is a dysplasia of the radius resulting in an exaggerated radial inclination, a short forearm, dorsal dislocation of the ulnar head and a "V" shaped proximal carpal row. It may be painful and may result in extensor tendon rupture. Congenital Madelungs may be due to an abnormal fibrous...