(1) The fibrous matrix and cartilage formed within the nonunion site transformed to osteoid and bone with increased vascularity.
(2) In reconstruction of the orbital floor, homograft lyophilised dura or cialit-stord rib cartilage are suitable, but the best materials are autologous cartilage or silastic or teflon.
(3) To selectively stain polyanionic macromolecules of growth plate cartilage and to prevent artifacts induced by aqueous fixation, proximal tibial growth plates were excised from rats, slam-frozen, and freeze-substituted in 100% methanol containing the cationic dye Alcian blue.
(4) Altering the time of PMA exposure demonstrated that PMA inhibited chondrocyte phenotypic expression, rather than cell commitment: early (0-48 h) exposure to PMA (during chondrocytic commitment in vitro) had little inhibitory effect on the staining index, whereas, exposure from 49-96 h (presumably post-commitment) and 0-96 h had moderate and strong inhibitory effects, respectively, on cartilage synthesis.
(5) 2) Neurotropin had no effect on the autolytic degradation of cartilage, but promoted the incorporation of 14C-acetate into the proteoglycan in the articular cartilage of rabbits.
(6) A complete review of the literature was made which shows that most chondrosarcomas occur in middle-aged males originating most often from the posterior cricoid lamina, next from the thyroid cartilage.
(7) For comparison, the expression of genes encoding type II collagen and cartilage proteoglycan core protein was also examined.
(8) In osteoarthritic cartilage, compared with normal cartilage, there was no increase in water binding but water content increased by 9 per cent and the avidity with which the newly bound water was held also increased.
(9) They were identified by the immunoblotting technique in extracts of chick articular cartilage from various sites and in extracts of cartilage from other species.
(10) A lysosomal membrane labilizer, vitamin A, exacerbated the cartilage pathology, whereas a stabilizer, cortisone, retarded it.
(11) The complete thyroid cartilage is dissected out, and then a horizontal cut is made through the cricoid cartilage.
(12) The buccal glands of adults of the Southern Hemisphere lamprey Geotria australis consist of a pair of small, bean-shaped, hollow sacs, embedded within the basilaris muscle in the region below the eyes and to either side of the piston cartilage.
(13) These observations suggest that the function of BMG is to evoke mesenchymal cell differentiation into prechondroblasts during the latent or migratory morphogenetic phase while the effect of the culture medium is to provide the bionutritional requirements for synthesis of hyaline cartilage matrix by chondrocytes during the patent phase of development.
(14) The cartilage of the concha is a valuable substitute of the bridge and the posterior wall of the external auditory conduct.
(15) the synovium has a) a direct, presumably enzymatic action on cartilage matrix and b) an indirect effect mediated through the chondrocytes.
(16) New insights into the biochemical and cell-biological alterations occurring in articular cartilage during the early phase of osteoarthrosis (OA) have been gained in the past decade by analysing experimentally induced osteoarthrosis in animals, mostly dogs and rabbits, while early phases of OA in humans so far have escaped diagnostic evaluation.
(17) The use of SDS-polyacrylamide gel electrophoresis of the cyanogen bromide derived peptides from fibrous cartilage collagens enabled to calculate type I to type II collagen ratio in this tissue.
(18) After transplantation chondrocytes from regenerated cartilage reconstructed cartilage in one out of ten transplants.
(19) Chemically isolated separate preparations of the non-aggregating protein-chondroitin-keratin sulphate (PCKS) fraction from the hyaline cartilage and hyaluronic acid (HUA) of the vitreous body and of the umbilicus were investigated by electron microscopy.
(20) Standard methods of glycosaminoglycan separation were used to confirm the presence of hyaluronic acid in sheep and rabbit articular cartilage.
Enchondroma
Definition:
(n.) A cartilaginous tumor growing from the interior of a bone.
Example Sentences:
(1) Maffucci's syndrome is a rare, congenital disease of unknown cause characterized by the development of multiple enchondromas and soft-tissue hemangiomas.
(2) (1985): Two benign patterns, the enchondroma encasement pattern and the island of cartilage patterns, were the most common findings in cartilaginous tumors of unknown biological behaviour.
(3) Enchondroma is a commonly encountered bone tumor in the foot, frequently necessitating excision.
(4) A morphometric study was performed on 600 nuclei from 6 benign chondroid tumours (BCL) (3 enchondromas and 3 exostoses), 600 nuclei from 6 well-differentiated chondrosarcomas (WDC) and 200 nuclei from moderately-differentiated chondrosarcomas (MDC) obtained by fine needle aspiration biopsy.
(5) A case is reported in which an epithelioid sarcoma developed in an apparently benign enchondroma or bone infarct at the site of a chrome-cobalt total knee replacement.
(6) Maffucci's syndrome consists of multiple cutaneous hemangiomas, dyschondroplasia, and often enchondroma.
(7) In the region of the calcar femorale, crossing trabeculae, similar to the appearance of an enchondroma or bone infarct, have been described in osteoporosis and osteoarthritis and probably represent unmasking of normally present reinforcing trabeculae.
(8) Five patients had multiple enchondromas (Ollier's syndrome), five children had congenital hand deformities, and all of these had previously had bone grafts harvested for associated craniofacial reconstructions.
(9) We report a rare case of Maffucci's syndrome combined with dedifferentiated chondrosarcoma in the right shoulder girdle developing from pre-existing enchondroma.
(10) Purely epiphyseal osteosarcoma has overlapping radiologic features with clear cell chondrosarcoma, epiphyseal chondroblastoma, and epiphyseal enchondroma.
(11) Neither the ovarian tumor recurred nor the enchondromas underwent sarcomatous change after a follow-up period of 7 years.
(12) Six cases are reported in which a fibrosarcoma or malignant fibrous histiocytoma developed in relation to an enchondroma in a long bone.
(13) Our case was associated with goitre, enchondroma of the tuberculum sellae and pituitary adenoma; the latter brought about disturbance of vision.
(14) We have described a 10-year-old Japanese boy and his father with metachondromatosis characterized by multiple exostoses, enchondromas, and periarticular calcification or ossification and reviewed the literature on this condition.
(15) Both forms of enchondroma normally show an asymptomatic development.
(16) The surgical treatment of enchondroma includes resection of the tumor tissue from the bone matrix, and subsequent filling of the defect with autologous or homologous spongiosa or with sterile plaster of Paris.
(17) Enchondromas are said to be extremely rare precursors of secondary chondrosarcomas.
(18) The author performed the histlologic examination of 62 solitary enchondromas located in the short tubular bones of the hand and the feet.
(19) Chondrosarcomas may arise by malignant transformation of a pre-existing enchondroma, but this causal relationship has been difficult to establish in solitary enchondroma.
(20) Two cases of painful enchondroma and how they were treated by different means is presented.