Fig. 1. X-ray of left forearm and hand showing osteosclerosis, ‘bone in bone’ appearance of shaft, fracture both bones, fraying and early cupping of metaphysis and widening of ‘physis’, the growth plate and absence of carpal bones. pathological fractures with ‘bone in bone’ appearance, increase in medullary density, defective metaphyseal remodeling with fraying and early cupping and widening of...

Aneurysmal bone cyst (ABC) is a benign osteolytic bone neoplasm characterized by blood filled spaces separated by fibrous septa. The tumor can have an occurrence anywhere that there is bone. It occurs mostly in extremity bones, whereas in skull and mandible bones its incidence is about 4%. In this article an unusual case of aneurysmal bone cyst in the right temporal region with histopathologica...

The material properties of cortical bone from the diaphyses of long bones (e.g., the femur and tibia) vary by direction, such that bone is stiffer and stronger along its long axis. This configuration improves the abilities of these structures to resist axial compressive loads coupled with bending. As in long bones, cortical bone from the cranial vault is subject to mechanical loads from various...

In the present study the bones of the skull, excluding the hyoid apparatus, are described. All the bones are aerated by sinuses. In the occipital bone the squamous part is aerated from the sinus of the parietal bone, the lateral part is aerated from the tympanic bulla and the basal part from the sinus of the basisphenoid bone. Condylar foramens and hypoglossal canals are absent. A small interpa...

albright syndrome is a rare condition, usually appears in the early years of life and characterized by bending or thickening of long bones. in girls, of endocrine glands disorders especially precocious puberty are the most common symptoms. also, brown pigments in the skin are another sing of this syndrome. certain mucosal and skin pigments are considerable features of the disease. etiology and ...

In general, there is a lack of scientific documentation of nutritional value of marine by-products. The bone fraction from fish has been regarded as waste. Due to the high mineral content of fish bones, this material can be well suitable as a natural calcium source. In the present study, apparent calcium absorption of different fish bone sources was tested using growing pigs. The experimental d...

Techniques for staining (silver, osmium, metal sulfides, ink) and microphotography (epi-illumination) of polished bone surfaces have been developed to visualize the three-dimensional structure of the shafts of mammalian long bones. Bone is a two-compartment system with capillaries and some kinds of connective tissue in one compartment separated from fibers of bone collagen, often forming lamell...

introduction: ewing’s sarcoma is the second most common primary malignant tumor of bone found in children after osteosarcoma. it accounts for 4–9% of primary malignant bone tumors and it affects bones of the skull or face in only 1–4% of cases. hence it rarely affects the head and neck. subject and method: in this case report, we describe a case of primary ewing's sarcoma occurring in the tempo...

Abstract Artificial or human test bones are used for the biomechanical testing of implants. Human rare and not always available. These must, therefore, be substituted with artificial bones. However, current only available specific characteristics (e.g., age groups disease characteristics). Additionally, their mechanical properties comparable to a limited extent those bone. This paper presents m...