| botryoid | Having numerous rounded protuberances resembling a bunch of grapes. Synonym: staphyline, uviform. Origin: G. Botryoeides, like a bunch of grapes (botrys) (05 Mar 2000) |
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| botryoid odontogenic cyst | A type of lateral periodontal cyst that shows a multilocular growth pattern. (05 Mar 2000) |
| botryoid sarcoma | <tumour> A polypoid form of embryonal rhabdomyosarcoma which occurs in children, most frequently in the urogenital tract, characterised by the formation of grossly apparent grapelike clusters of neoplastic tissue that consist of rhabdomyoblasts, spindle, and stellate cells in a myxomatous stroma; neoplasms of this type grow relatively rapidly and are highly malignant. (05 Mar 2000) |
| bladder rhabdomyosarcoma | <radiology> Usually arises at trigone, causes outlet obstruction leading to big bladder, Differential diagnosis: haemorrhagic cystitis (small bladder, filling defects) see: rhabdomyosarcoma (12 Dec 1998) |
| rhabdomyosarcoma | <oncology, tumour> Malignant tumour (sarcoma) derived from striated muscle. (18 Nov 1997) |
| rhabdomyosarcoma, alveolar | A form of rhabdomyosarcoma occurring mainly in adolescents and young adults, affecting muscles of the extremities, trunk, orbital region, etc. It is extremely malignant, metastasizing widely at an early stage. Few cures have been achieved and the prognosis is poor. "alveolar" refers to its microscopic appearance simulating the cells of the respiratory alveolus. (12 Dec 1998) |
| rhabdomyosarcoma, embryonal | A form of rhabdomyosarcoma arising primarily in the head and neck, especially the orbit, of children below the age of 10. The cells are smaller than those of other rhabdomyosarcomas and are of two basic cell types: spindle cells and round cells. This cancer is highly sensitive to chemotherapy and has a high cure rate with multi-modality therapy. (12 Dec 1998) |