| subungual exostosis | Painful osseous outgrowths that elevate the nail of the great toe or fingers in young people. (05 Mar 2000) |
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| subungual | Subunguial Beneath the finger or toe nail. Synonym: hyponychial. Origin: L. Unguis, nail (05 Mar 2000) |
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| subungual abscess | Suppuration extending beneath a fingernail or toenail, usually from a parenychia. (05 Mar 2000) |
| subungual haematoma | <dermatology, surgery> A collection of blood under the fingernail, often the result of blunt trauma to the nail. (06 Mar 1998) |
| subungual melanoma | <tumour> A melanoma beginning in the skin at the border of or beneath the nail. Synonym: melanotic whitlow. (05 Mar 2000) |
| multiple exostosis | A disturbance of enchondral bone growth in which multiple, generally benign osteochondromas of long bones appear during childhood, commonly with shortening of the radius and fibula; the ill-effects are usually mechanical but malignant change is rare; autosomal dominant inheritance. Synonym: diaphysial aclasis, hereditary deforming chondrodystrophy, multiple exostosis, osteochondromatosis. (05 Mar 2000) |
| hereditary exostosis | <radiology> (osteochondromatosis) Autosomal dominant, M more than F, multiple exostoses, snowflake calcification of mature cartilage cap, may leading to chondrosarcoma, short metacarpals (especially 4th and 5th) (12 Dec 1998) |
| solitary osteocartilaginous exostosis | <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) |
| ivory exostosis | A small, rounded, eburnated tumour arising from a bone, usually one of the cranial bones. (05 Mar 2000) |
| exostosis | A non cancerous growth on the surface of a bone, usually with a cartilage cap, that is due to long-term irritation as a result of osteoarthritis, infections, or trauma. (09 Oct 1997) |
| exostosis bursata | An exostosis arising from the joint surface of a bone and covered with cartilage and a synovial sac. (05 Mar 2000) |
| exostosis cartilaginea | An ossified chondroma arising from the epiphysis or joint surface of a bone. (05 Mar 2000) |