| parosteal osteosarcoma | <tumour> Low grade osteosarcoma arising on the surface of bone without involvement of the underlying marrow, usually occurring as a heavily ossified mass of the distal femur in women in the third and fourth decades of life. (05 Mar 2000) |
|---|---|
| periosteal osteosarcoma | <tumour> Chondroblastic osteosarcoma occurring on the surface of bones without involvement of the marrow; usually presents in adolescents and young adults as a lucent defect with bone spicules extending into soft tissues. Histologically, the tumour is intermediate to high grade, and the cartilage is lobulated. (05 Mar 2000) |
| osteosarcoma | <oncology, tumour> Malignant tumour of bone (probably neoplasia of osteocytes). (18 Nov 1997) |
| osteosarcoma, juxtacortical | A form of osteogenic sarcoma of relatively low malignancy, probably arising from the periosteum and initially involving cortical bone and adjacent connective tissue. It occurs in middle-aged as well as young adults and most commonly affects the lower part of the femoral shaft. (12 Dec 1998) |
| telangiectatic | Relating to or marked by telangiectasia. (05 Mar 2000) |
| telangiectatic angioma | <tumour> Angioma composed of dilated vessels. Angioma venosum racemosum, tortuous swelling caused by varicosities of superficial veins. Venous angioma, vascular anomaly composed of anomalous veins. (05 Mar 2000) |
| telangiectatic cancer | A cancer with numerous dilated capillaries and "lakes" of blood within relatively large endothelium-lined channels. (05 Mar 2000) |
| telangiectatic fibroma | <tumour> A benign neoplasm of fibrous tissue in which there are numerous, small and large, frequently dilated, vascular channels. Synonym: angiofibroma. (05 Mar 2000) |
| telangiectatic glioma | <tumour> Glioma telangiectodes, a glioma in which the stroma has numerous, conspicuous, frequently dilated small blood vessels and capillaries, as well as large, endothelium-rimmed lakes of blood. (05 Mar 2000) |
| telangiectatic lipoma | A benign neoplasm composed of a mixture of adipose tissue and blood vessels. (12 Dec 1998) |
| telangiectatic osteogenic sarcoma | <tumour> A lytic cystic variant of osteogenic sarcoma composed of aneurysmal blood-filled spaces lined by sarcoma cells producing osteoid. (05 Mar 2000) |
| telangiectatic wart | A discrete, pink to red telangiectasia having a tendency to undergo secondary epithelial changes, including acanthosis and hyperkeratosis. An underlying vascular abnormality is present in many cases. The term angiokeratoma is applied to a number of quite distinct conditions which share a common clinical presentation with asymptomatic hyperkeratotic vascular skin lesions and a histological combination of superficial dermal vascular ectasia. (12 Dec 1998) |