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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

ossiform
Synonym: osteoid. ... Origin: ossi-+ L. Forma, form ... (05 Mar 2000) ...

ossifragous
Serving to break bones; bone-breaking. ... Origin: L. Ossifragus. See Ossifrage. ... (01 Mar 1998) ...

ossify
1. <physiology> To form into bone; to change from a soft animal substance into bone, as by the deposition of lime salts. ... 2. To harden; as, to ossify the heart. ... Origin: L. Os, ossis, bone + -fy: cf. F. Ossifier. See Osseous. ... <physiology> To become bone; to change from a soft tissue to a hard bony tissue. ... Source: Websters Dict …

ossifying cartilage
Synonym for temporary cartilage ... A cartilage that is normally replaced by bone, to form a part of the skeleton. ... Synonym: ossifying cartilage, precursory cartilage. ... (05 Mar 2000) ...

ossis
Synonym: bone. ... For histological description, see bone. ... Origin: L. Bone ... (05 Mar 2000) ...

ost-
See: osteo-. ... (05 Mar 2000) ...

ostealgia
Pain in a bone. ... Synonym: osteodynia. ... Origin: osteo-+ G. Algos, pain ... (05 Mar 2000) ...

ostealgic
Relating to or marked by bone pain. ... (05 Mar 2000) ...

osteanagenesis
Synonym for osteoanagenesis ... Regeneration of bone. ... Synonym: osteanagenesis, osteanaphysis. ... Origin: osteo-+ G. Ana, again, + genesis, generation ... (05 Mar 2000) ...

osteanaphysis
Synonym: osteoanagenesis. ... Origin: osteo-+ G. Anaphysis, a growing again ... (05 Mar 2000) ...

ostectomy
1. <procedure> Surgical removal of bone. ... 2. In dentistry, resection of supporting osseous structure to eliminate periodontal pockets. ... Synonym: osteoectomy. ... Origin: osteo-+ G. Ektome, excision ... (05 Mar 2000) ...

osteitic
Relating to or affected by osteitis. ... Synonym: ostitic. ... (05 Mar 2000) ...

osteitis condensans ilii
Symmetric benign osteosclerosis of the portion of the iliac bones adjacent to the sacroiliac joints. ... (05 Mar 2000) ...

osteitis deformans
This is a disease of bone that initially results in the excessive resorption of bone (by osteoclasts) followed by the replacement of normal bone marrow with vascular and fibrous tissue. Many patients are asymptomatic and diagnosed by routine X-rays. ... (27 Sep 1997) ...

osteitis fibrosa
<radiology> Secondary to hypocalcaemia and hyperphosphataemia followed by increased parathormone production, subperiosteal bone resorption, radial aspect of phalanges, distal clavicle, medial tibia plateau, medial humerus neck, distal ulna, phalangeal tufts, lamina dura of teeth, subchondral and subligamentous bone resorption, widening of sym …

osteitis fibrosa circumscripta
Synonym for monostotic fibrous dysplasia ... Fibrous dysplasia of a single bone. ... Synonym: localised osteitis fibrosa, osteitis fibrosa circumscripta. ... (05 Mar 2000) ...

osteitis fibrosa cystica
Rarefying osteitis with fibrous degeneration and formation of cysts, and with the presence of fibrous nodules on the affected bones. It is due to marked osteoclastic activity secondary to hyperfunction of the parathyroid glands. ... (12 Dec 1998) ...

osteitis fibrosa disseminata
Synonym for polyostotic fibrous dysplasia ... The occurrence of lesions of fibrous dysplasia in multiple bones, commonly on one side of the body; may occur with areas of pigmentation and endocrine dysfunction (McCune-Albright syndrome). ... Synonym: multifocal osteitis fibrosa, osteitis fibrosa disseminata. ... (05 Mar 2000) ...

osteitis pubis
Osteosclerosis of the pubic bone next to the symphysis, caused by trauma to that region, from pregnancy or instrumentation. ... (05 Mar 2000) ...

ostembryon
Archaic term for lithopedion. ... Origin: osteo-+ G. Embryon, embryo ... (05 Mar 2000) ...

ostemia
Congestion or hyperaemia of a bone. ... Origin: osteo-+ G. Haima, blood ... (05 Mar 2000) ...

ostempyesis
Suppuration in bone. ... Origin: osteo-+ G. Empyesis, suppuration ... (05 Mar 2000) ...

ostensible
1. Capable of being shown; proper or intended to be shown. ... 2. Shown; exhibited; declared; avowed; professed; apparent; often used as opposed to real or actual; as, an ostensible reason, motive, or aim. ... Origin: From L. Ostensus, p. P. Of ostendere to show, prop, to stretch out before; fr. Prefix obs- (old form of ob-) + tendere to stretch. See …

ostentation
1. The act of ostentating or of making an ambitious display; unnecessary show; pretentious parade; usually in a detractive sense. 'Much ostentation vain of fleshly arm.' 'He knew that good and bountiful minds were sometimes inclined to ostentation.' (Atterbury) ... 2. A show or spectacle. ... Synonym: Parade, pageantry, show, pomp, pompousness, vaunt …

osteo-
<prefix> A combining form from the Greek word for a bone. ... (29 Oct 1998) ...

osteoanagenesis
Regeneration of bone. ... Synonym: osteanagenesis, osteanaphysis. ... Origin: osteo-+ G. Ana, again, + genesis, generation ... (05 Mar 2000) ...

osteoarthritis
<pathology> Noninflammatory degenerative joint disease occurring chiefly in older persons, characterised by degeneration of the articular cartilage, hypertrophy of bone at the margins and changes in the synovial membrane. It is accompanied by pain and stiffness, particularly after prolonged activity. ... Origin: Gr. Arthron = joint ... (18 Nov …

osteoarthritis, hip
Noninflammatory degenerative disease of the hip joint which usually appears in late middle or old age. It is characterised by growth or maturational disturbances in the femoral neck and head, as well as acetabular dysplasia. A dominant symptom is pain on weight-bearing or motion. ... (12 Dec 1998) ...

osteoarthropathy
<orthopaedics, pathology, rheumatology> A condition which describes the broadening or thickening of the tips of the fingers (and toes) with increased lengthwise curvature of the nail and a decrease in the angle normally seen between the cuticle and the fingernail. Often this finding on physical examination can be quite subtle and easily overl …

osteoarthrosis
Synonym: osteoarthritis. ... Origin: osteo-+ G. Arthron, joint, + -osis, condition ... (05 Mar 2000) ...

osteoblast
1. <pathology> Mesodermal cell that gives rise to bone. ... 2. <dentistry> Cells which aid the growth and development of teeth and bones. ... (08 Jan 1998) ...

osteoblastic
Relating to the osteoblasts; describes any region of increased radiographic bone density, in particular, metastases that stimulate osteoblastic activity. ... (05 Mar 2000) ...

osteoblastoma
A benign, painful, tumour of bone characterised by the formation of osteoid tissue, primitive bone and calcified tissue. It occurs frequently in the spine of young persons. ... (12 Dec 1998) ...

osteoblasts
Cells that arise from fibroblasts and which, as they mature, are associated with the production of bone. ... (12 Dec 1998) ...

osteocalcin
<protein> Polypeptide of 50 residues formed from a 76-77 amino acid precursor and found in the extracellular matrix of bone. Binds hydroxyapatite. Has limited homology of its leader sequence with that of other Vitamin K dependent proteins such as prothrombin, Factors IX and X and Protein C. ... (18 Nov 1997) ...

osteocarcinoma
<tumour> Undesirable and obsolete non-specific term for a metastasis of carcinoma in a bone, or a carcinoma that contains foci of osseous tissue (as a result of metaplasia). ... (05 Mar 2000) ...

osteocartilaginous
Synonym for osseocartilaginous ... Relating to, or composed of, both bone and cartilage. ... Synonym: osteocartilaginous, osteochondrous. ... (05 Mar 2000) ...

osteochondritis
Inflammation of a bone and its cartilage. ... Origin: osteo-+ G. Chondros, cartilage, + -itis, inflammation ... (05 Mar 2000) ...

osteochondritis deformans juvenilis
Synonym for Legg-Calve-Perthes disease ... perthes disease ...

osteochondritis dissecans
A type of osteochondritis in which articular cartilage and associated bone becomes partially or totally detached to form joint loose bodies. Affects mainly the knee, ankle, and elbow joints. ... (12 Dec 1998) ...

osteochondrodysplasia
Synonym for camptomelic syndrome ... <syndrome> Also associated with flat facies, short vertebrae, hypoplastic scapula, and bowed tibia. ... Synonym: osteochondrodysplasia. ... (05 Mar 2000) ...

osteochondrodysplasias
Abnormal development of cartilage and bone. ... (12 Dec 1998) ...

osteochondrodystrophia deformans
Synonym for chondro-osteodystrophy ... Term used for a group of disorders of bone and cartilage which includes Morquio syndrome and similar conditions. ... Synonym: osteochondrodystrophia deformans, osteochondrodystrophy. ... (05 Mar 2000) ...

osteochondrodystrophy
Synonym for chondro-osteodystrophy ... Term used for a group of disorders of bone and cartilage which includes Morquio syndrome and similar conditions. ... Synonym: osteochondrodystrophia deformans, osteochondrodystrophy. ... (05 Mar 2000) ...

osteochondrogenic cell
One of the undifferentiated cell's in the inner layer of the periosteum of an endochondrally developing bone capable of developing into an osteoblast or a chondroblast. ... (05 Mar 2000) ...

osteochondroma
<oncology, tumour> A benign cartilaginous neoplasm that consists of a pedicle of normal bone with a rim of proliferative cartilage cells, often occurs near the ends of long bones, multiple osteochondromas are inherited and referred to as hereditary multiple exostoses. ... (27 Sep 1997) ...

osteochondromatosis
A condition marked by the presence of multiple osteochondromas. ... (12 Dec 1998) ...

osteochondrosarcoma
<tumour> Chondrosarcoma arising in bone. Sarcomas in bone containing foci of neoplastic cartilage as well as bone are classified as osteogenic sarcomas. ... Origin: osteo-+ G. Chondros, cartilage, + sarx, flesh, + -oma, tumour ... (05 Mar 2000) ...

osteochondrosis
<radiology> Degeneration followed by reossification of one or more ossification centres in children, Legg-Calve-Perthes disease (capital femoral epiphysis), Kohler disease (tarsal navicular), Osgood-Schlatter disease (tibial tuberosity), Scheuermann disease (vertebral ring epiphyses), Freiberg infraction (metatarsal head), Sever disease (apop …

osteochondrosis dissecans
<radiology> Subchondral fatigue fracture commonly seen in adolescents, capitellum of elbow, knee, medial femoral condyle close to fossa intercondylaris, bilateral in 20-30%, rarely lateral, talus, mouse = osteochondrotic fragment, mouse bed = sclerosed pit in articular surface see: osteochondrosis ... (12 Dec 1998) ...

osteochondrous
Synonym: osseocartilaginous. ... Origin: osteo-+ G. Chondros, cartilage ... (05 Mar 2000) ...

osteoclast
1. <pathology> Large multinucleate cell formed from differentiated macrophage, responsible for breakdown of bone. ... 2. <dentistry> Cells which help create the sockets in bones. For example osteoclasps create the openings in your jaw bone to hold your teeth. ... (08 Jan 1998) ...

osteoclast activating factor
A lymphokine that stimulates bone resorption and inhibits bone-collagen synthesis. ... (05 Mar 2000) ...

osteoclastic
Pertaining to osteoclasts, especially with reference to their activity in the absorption and removal of osseous tissue. ... (05 Mar 2000) ...

osteoclastoma
Synonym for giant cell tumour of bone ... A bone tumour composed of cellular spindle-cell stroma containing scattered multinucleated giant cells resembling osteoclasts. The tumours range from benign to frankly malignant lesions. The tumour occurs most frequently in an end of a long tubular bone in young adults. ... (12 Dec 1998) ...

osteoclasts
A large multinuclear cell associated with the absorption and removal of bone. An odontoclast, also called cementoclast, is cytomorphologically the same as an osteoclast and is involved in cementum resorption. ... (12 Dec 1998) ...

osteocollagenous fibres
Fine collagenous fibre's in the matrix of osseous tissue. ... (05 Mar 2000) ...

osteocystoma
Synonym for solitary bone cyst ... A unilocular cyst containing serous fluid and lined with a thin layer of connective tissue, occurring usually in the shaft of a long bone in a child. ... Synonym: idiopathic bone cavity, osteocystoma, simple bone cyst, traumatic bone cyst, unicameral bone cyst. ... (05 Mar 2000) ...

osteocyte
<pathology> Osteoblast that is embedded in bony tissue and which is relatively inactive. ... (18 Nov 1997) ...

osteocytes
Osteoblasts that have become embedded within the bone matrix, occupying a flat oval cavity and sending, through the canaliculi, slender cytoplasmic processes that make contact with processes of other osteocytes. ... (12 Dec 1998) ...

osteodentin
Rapidly formed tertiary dentin that contains entrapped odontoblasts and few dentinal tubules, thereby superficially resembling bone. ... Origin: osteo-+ L. Dens, tooth ... (05 Mar 2000) ...

osteodermatopoikilosis
Osteopoikilosis with skin lesions, most commonly small elastic fibrous nodules on the posterior aspects of the thighs and buttocks; irregular autosomal dominant inheritance. ... Synonym: Buschke-Ollendorf syndrome. ... Origin: osteo-+ G. Derma, skin, + poikilos, dappled, + -osis, condition ... (05 Mar 2000) ...

osteodermatous
Pertaining to or characterised by osteodermia. ... (05 Mar 2000) ...

osteodermia
Synonym: osteoma cutis. ... Origin: osteo-+ G. Derma, skin ... (05 Mar 2000) ...

osteodesmosis
Transformation of tendon into bony tissue. ... Origin: osteo-+ G. Desmos, a band (tendon), + -osis, condition ... (05 Mar 2000) ...

osteodiastasis
Separation of two adjacent bones, as of the cranium. ... Origin: osteo-+ G. Diastasis, a separation ... (05 Mar 2000) ...

osteodynia
Synonym: ostealgia. ... Origin: osteo-+ G. Odyne, pain ... (05 Mar 2000) ...

osteodysplasty
A generalised skeletal dysplasia with prominent forehead and small mandible; radiographically, there are irregular ribbon-like constrictions of the ribs and tubular bones; probably autosomal dominant inheritance. There are arguably two forms, autosomal recessive and X-linked. ... Synonym: Melnick-Needles syndrome. ... Origin: osteo-+ G. Dys-, bad, + …

osteodystrophia
Synonym for osteodystrophy ... <pathology> Defective bone formation. ... (18 Nov 1997) ...

osteodystrophy
<pathology> Defective bone formation. ... (18 Nov 1997) ...

osteoectasia
Bowing of bones, particularly of the legs. ... Origin: osteo-+ G. Ektasis, a stretching ... (05 Mar 2000) ...

osteoectomy
Synonym for ostectomy ... 1. <procedure> Surgical removal of bone. ... 2. In dentistry, resection of supporting osseous structure to eliminate periodontal pockets. ... Synonym: osteoectomy. ... Origin: osteo-+ G. Ektome, excision ... (05 Mar 2000) ...

osteoepiphysis
An epiphysis of a bone. ... (05 Mar 2000) ...

osteofibroma
<tumour> A benign lesion of bone, probably not a true neoplasm, consisting chiefly of fairly dense, moderately cellular, fibrous connective tissue in which there are small foci of osteogenesis. Most examples of this condition, especially in the maxilla and mandible, probably represent foci of fibrous dysplasia; a few examples of fibrous lesio …

osteofibrosis
Fibrosis of bone, mainly involving red bone marrow. ... (05 Mar 2000) ...

osteogenesis
<pathology> Production of bone. ... (18 Nov 1997) ...

osteogenesis imperfecta
<orthopaedics, paediatrics> A group of genetic diseases of the bones. Divided into four types all result in brittle and frail bones. ... Multiple broken bones are common. Other features include deafness, white of the eyes appear bluish, kyphosis, kyphoscoliosis, tooth abnormalities, chest deformities and short stature. There is no specific tre …

osteogenesis, distraction
Bone lengthening by gradual mechanical distraction. An external fixation device produces the distraction across the bone plate. The technique was originally applied to long bones but in recent years the method has been adapted for use with mandibular implants in maxillofacial surgery. ... (12 Dec 1998) ...

osteogenetic fibres
The fibre's in the osteogenetic layer of the periosteum. ... (05 Mar 2000) ...

osteogenetic layer
The inner bone-forming layer of the periosteum. ... (05 Mar 2000) ...

osteogenic cell
One of the cell's in the inner layer of the periosteum that forms osseous tissue. ... (05 Mar 2000) ...

osteogenic sarcoma
<oncology, tumour> A primary malignant bone cancer that arises from the cells which produce bone. ... It is most commonly seen in the second and third decades of life. Genetic factors appear to be important in the development of this illness. Paget's disease may be a predisposing cause. Treatment involves a combination of surgery and chemother …

osteogenic tissue
A connective tissue with the property of forming osseous tissue. ... (05 Mar 2000) ...

osteogenin
<protein> Bone inducing protein (less than 50 kD) associated with extracellular matrix. Binds heparin. ... See: bone morphogenetic protein. ... (18 Nov 1997) ...

osteohalisteresis
Softening of the bones through absorption or insufficient supply of the mineral portion. ... Origin: osteo-+ G. Hals, salt, + steresis, privation ... (05 Mar 2000) ...

osteohypertrophy
Condition characterised by overgrowth of bones. ... Origin: osteo-+ G. Hyper-over, + trophe, nourishment ... (05 Mar 2000) ...

osteoid
<pathology> Uncalcified bone matrix, the product of osteoblasts. Consists mainly of collagen, but has osteonectin present. ... (18 Nov 1997) ...

osteoid osteoma
<radiology> M more than F, 15 - 30 years of age, lucent nidus with thickened cortex, metaphyseal, femur, talus, tibia, patella, rarely spine, never skull or clavicle, pain at night, relievey be inflammatory rather than neoplastic, treatment: leave it (disappears in 4-6 yrs), or remove nidus, Differential diagnosis: TB abscess, chronic osteo ( …

osteoid tissue
Osseous tissue prior to calcification. ... (05 Mar 2000) ...

osteolathyrism
An experimental disease in rats, swine, turkeys, and other animals fed the seeds of certain species of Lathyrus (e.g., L. Odouratus, sweet pea), or such nitriles as aminoacetonitrile or beta-aminopropionitrile; the chief pathologic changes occur in connective tissue structures, as follows: 1) fibroblastic, chondroblastic, and osteoblastic prolifera …

osteolipochondroma
A benign neoplasm of cartilaginous tissue, in which metaplasia occurs and foci of adipose cells and osseous tissue are formed. ... Origin: osteo-+ G. Lipos, fat, + chondros, cartilage, + -oma, tumour ... (05 Mar 2000) ...

osteologia
Synonym: osteology, osteology. ... Origin: L. ... (05 Mar 2000) ...

osteologist
A doctor who specialises in the diagnosis and treatment of bone disorders. ... (09 Oct 1997) ...

osteology
<study> The medical study of diseases and disorders of bones. ... (09 Oct 1997) ...

osteolysis
<pathology> The dissolution of bone, applied especially to the removal or loss of the calcium of bone. ... Origin: Gr. Lysis = dissolution ... (18 Nov 1997) ...

osteolysis, essential
Syndromes of bone destruction where the cause is not obvious such as neoplasia, infection, or trauma. The destruction follows various patterns: massive (gorham disease), multicentric (hajdu-cheney syndrome, winchester syndrome), or carpal/tarsal. ... (12 Dec 1998) ...

osteolytic
Pertaining to, characterised by, or causing osteolysis. ... (05 Mar 2000) ...

osteoma
<oncology, tumour> Benign tumour of bone. ... (18 Nov 1997) ...

osteoma medullare
An osteoma containing spaces that are filled (or partly filled) with various elements of bone marrow. ... Osteoid osteoma, a painful benign neoplasm that usually originates in one of the bones of the lower extremities, especially the femur or tibia of adolescent and young adult persons; characterised by a nidus (usually no larger than 1 cm in diamet …

osteoma, osteoid
Benign circumscribed tumour of spongy bone occurring especially in the bones of the extremities and vertebrae, most often in young persons. ... (12 Dec 1998) ...