| trophoblastic neoplasms | Trophoblastic growth, which may be gestational or nongestational in origin. Trophoblastic neoplasia resulting from pregnancy is often described as gestational trophoblastic disease to distinguish it from germ cell tumours which frequently show trophoblastic elements, and from the trophoblastic differentiation which sometimes occurs in a wide variety of epithelial cancers. Gestational trophoblastic growth has several forms, including hydatidiform mole and choriocarcinoma. (12 Dec 1998) |
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| jaw neoplasms | Cancers or tumours of the maxilla or mandible unspecified. For neoplasms of the maxilla, maxillary neoplasms is available and of the mandible, mandibular neoplasms is available. (12 Dec 1998) |
| kidney neoplasms | Neoplasms or tumours of the kidney. Renal cell carcinoma is the most common neoplastic lesion of the kidney, accounting for approximately 85% of all kidney neoplasms. The vast majority of these tumours are adenocarcinoma. (12 Dec 1998) |
| ureteral neoplasms | Neoplasms or tumours of the ureter. Haematuria, which occurs in 75% of patients with ureteral carcinoma, is the most common presenting symptom. The most common site for the occurrence of a ureteral tumour is in the lower third of the ureter, with a lesser incidence higher up. (12 Dec 1998) |
| urethral neoplasms | Neoplasms or tumours of the urethra. This condition is relatively uncommon and is the only cancer of the urinary system that has a higher incidence rate in females than males. Squamous cell carcinoma is the most frequent histologic type. (12 Dec 1998) |
| urogenital neoplasms | Neoplasms of the urogenital tract. (12 Dec 1998) |
| urologic neoplasms | Neoplasms of the urinary tract in both male and female. It does not include the male genitalia for which urogenital neoplasms is used for general discussions of neoplasms of both the urinary tract and the genitalia. (12 Dec 1998) |
| uterine neoplasms | Neoplasms of the uterus. (12 Dec 1998) |
| laryngeal neoplasms | Cancers or tumours of the larynx or any of its parts: the glottis, epiglottis, laryngeal cartilages, laryngeal muscles, and vocal cords. (12 Dec 1998) |
| liver neoplasms, experimental | Experimentally induced tumours of the liver. (12 Dec 1998) |
| abducens nerve | <anatomy, nerve> The 6th cranial nerve. The abducens nerve originates in the abducens nucleus of the pons and sends motor fibres to the lateral rectus muscles of the eye. Damage to the nerve or its nucleus disrupts horizontal eye movement control. (12 Dec 1998) |
| abducent nerve | <anatomy> The abducent nerve enervates a muscle which moves the eyeball. Lesions of the sixth cranial nerve result in deviation of the eyeball outward and double vision. Synonym: cranial nerve VI. (27 Sep 1997) |
| accessory nerve | <anatomy, nerve> The accessory nerve enervates the sternocleidomastoid muscles and the trapezius muscles. Lesions of the eleventh result in drooping of the shoulder and inability to rotate the head away from the affected side. Synonym: cranial nerve XI. (27 Sep 1997) |
| accessory nerve lymph nodes | The nodes of the lateral deep cervical group that are located along the accessory nerve; their efferent vessels pass to the supraclavicular lymph nodes. Synonym: companion lymph nodes of accessory nerve, nodi lymphatici comitantes nervi accessorii. (05 Mar 2000) |
| accessory nerve trunk | Part of the accessory nerve formed within the cranial cavity by the union of the cranial and spinal roots, which then divides within the jugular foramen into internal and external branches, the former uniting with the vagus, the latter exiting the foramen as in independent branch which is commonly considered to be the accessory nerve. (05 Mar 2000) |