| urogenital septum | The coronally placed ridge formed by the caudal portion of the urogenital ridges fusing in the midline of the embryo; it lies between the hindgut dorsally and the bladder ventrally. (05 Mar 2000) |
|---|---|
| urogenital sinus | The ventral part of the cloaca after its separation from the rectum by the growth of the urorectal septum; from it develops the lower part of the bladder in both sexes, the prostatic portion of the male urethra, and the urethra and vestibule in the female. Synonym: persistent cloaca. (05 Mar 2000) |
| urogenital surgical procedures | Surgery performed on the urinary tract or its organs and on the male or female genitalia. (12 Dec 1998) |
| urogenital system | The organs concerned in the production and excretion of urine, together with the organs of reproduction. (12 Dec 1998) |
| urogenital triangle | The anterior portion of the perineal region containing the openings of the urethra and vagina in the female and the urethra and root structures of the penis in the male. Synonym: regio urogenitalis, urogenital region. (05 Mar 2000) |
| bladder neoplasms | Cancers or tumours of the bladder. The majority of bladder neoplasms are of the transitional cell variety and are usually papillary and multicentric. (12 Dec 1998) |
| bone marrow neoplasms | Neoplasms located in the bone marrow. They are differentiated from neoplasms composed of bone marrow cells, such as myeloma. most bone marrow neoplasms are metastatic. (12 Dec 1998) |
| breast neoplasms, male | Any neoplasms of the male breast. These occur infrequently in males in developed countries, the incidence being about 1% of that in females. Two-thirds of patients present with intraductal carcinoma. The average age of onset is 60 years for men. Orchiectomy was the standard treatment but it has been replaced by tamoxifen as the initial therapy since oestrogen-receptor-positive tumours are predominant in males. Orchiectomy and mastectomy may be used if initial drug therapy is not successful. The prognosis is worse than that for females. (12 Dec 1998) |
| vascular neoplasms | <oncology> Neoplasms located in vascular tissue or specific veins. They are differentiated from neoplasms, vascular tissue which are neoplasms composed of vascular tissue, such as angiofibroma or haemangioma. (12 Dec 1998) |
| pancreatic cystic neoplasms | <radiology> Microcystic adenoma, glycogen, benign, mucinous cystic neoplasm, macrocystic adenoma, cystadenoma/cystadenocarcinoma, mucin, pre-malignant, Both occur more commonly in women, peak in middle age (12 Dec 1998) |
| pancreatic neoplasms | <radiology> Adenocarcinoma, most common, usually in pancreatic head, nasty (1-2% survival at 1 yr!), cystic neoplasms, slow-growing, more common in women, isleT-cell tumours, soft-tissue tumours (rare), metastases (breast, lung, melanoma, stomach, colon) (12 Dec 1998) |
| mammary neoplasms | Tumours of the mammary gland. Their occurrence is uncommon with the exception of the female dog, in which they account for 25% of all neoplasms. (12 Dec 1998) |
| paranasal sinus neoplasms | Neoplasms or tumours of the paranasal sinuses. Malignant neoplasms are rare, comprising 3% of all head and neck neoplasms. The majority arise in the maxillary sinus with malignancies of the ethmoid sinus constituting virtually all the remaining tumours. (12 Dec 1998) |
| genital neoplasms, male | Neoplasms of the male genitalia. (12 Dec 1998) |
| maxillary neoplasms | Cancer or tumours of the maxilla or upper jaw. (12 Dec 1998) |