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Index of Diseases
U
Ulcer
Definition: A lesion on the surface of the skin or a mucous surface, produced by the sloughing of inflammatory necrotic tissue. Annotation: IM; coord with organ/dis precoord (IM); in addition to the see related terms below consider also DECUBITUS ULCER; FOOT ULCER; LEG ULCER; ORAL ULCER; STOMACH ULCER; DUODENAL ULCER; VARICOSE ULCER; "rodent ulcer" = CARCINOMA, BASAL CELL; stress ulcer: index under PEPTIC ULCER or specific (IM) + STRESS or STRESS, PSYCHOLOGICAL (IM or NIM) ID#: D014456Ulna Fractures
Definition: Fractures of the larger bone of the forearm. Annotation: ID#: D014458Ulnar Nerve Compression Syndromes
Definition: Ulnar neuropathies caused by mechanical compression of the nerve at any location from its origin at the BRACHIAL PLEXUS to its terminations in the hand. Common sites of compression include the retroepicondylar groove, cubital tunnel at the elbow (CUBITAL TUNNEL SYNDROME), and Guyon's canal at the wrist. Clinical features depend on the site of injury, but may include weakness or paralysis of wrist flexion, finger flexion, and ulnar innervated intrinsic hand muscles, and impaired sensation over the ulnar aspect of the hand, fifth finger, and ulnar half of the ring finger. (Joynt, Clinical Neurology, 1995, Ch51, p43) Annotation: ID#: D017769Ulnar Neuropathies
Definition: Disease involving the ULNAR NERVE from its origin in the BRACHIAL PLEXUS to its termination in the hand. Clinical manifestations may include PARESIS or PARALYSIS of wrist flexion, finger flexion, thumb adduction, finger abduction, and finger adduction. Sensation over the medial palm, fifth finger, and ulnar aspect of the ring finger may also be impaired. Common sites of injury include the AXILLA, cubital tunnel at the ELBOW, and Guyon's canal at the wrist. (From Joynt, Clinical Neurology, 1995, Ch51 pp43-5) Annotation: ID#: D020424Unconsciousness
Definition: Loss of the ability to maintain awareness of self and environment combined with markedly reduced responsiveness to environmental stimuli. (From Adams et al., Principles of Neurology, 6th ed, pp344-5) Annotation: do not confuse with UNCONSCIOUS (PSYCHOLOGY), unconscious behavior or "the unconscious" in psychol ID#: D014474Unverricht-Lundborg Syndrome
Definition: An autosomal recessive condition characterized by recurrent myoclonic and generalized seizures, ATAXIA, slowly progressive intellectual deterioration, dysarthria, and intention tremor. Myoclonic seizures are severe and continuous, and tend to be triggered by movement, stress, and sensory stimuli. The age of onset is between 8 and 13 years, and the condition is relatively frequent in the Baltic region, especially Finland. (From Menkes, Textbook of Child Neurology, 5th ed, pp109-110) Annotation: ID#: D020194Urachal Cyst
Definition: Cyst occurring in a persistent portion of the urachus, presenting as an extraperitoneal mass in the umbilical region. It is characterized by abdominal pain, and fever if infected. It may rupture, leading to peritonitis, or it may drain through the umbilicus. Annotation: non-neoplastic; /blood supply /chem /secret /ultrastruct permitted; do not confuse with patent urachus (index under URACHUS /abnorm) ID#: D014496Ureaplasma Infections
Definition: Infections with bacteria of the genus UREAPLASMA. Annotation: gram-neg bact infect; DF: UREAPLASMA INFECT ID#: D016869Uremia
Definition: Annotation: azotemia in foreign lit means often UREMIA & often BLOOD UREA NITROGEN ID#: D014511Ureteral Calculi
Definition: Calculi of the ureter, usually the result of the passage of one originating in the kidney. It occurs usually in mid-life, rarely in children; and is more frequent in males than females. (From CMIT, 5th ed) Annotation: chem composition of caclculi use /chem; /ultrastruct permitted ID#: D014514Ureteral Diseases
Definition: Annotation: do not confuse with URETHRAL DISEASES, espec in Romance lang: urétéral (French), ureteral (Span), ureterale (Ital) = "ureteral", while urétral (French), uretral (Span), uretrale (Ital) = "urethral" ID#: D014515Ureteral Neoplasms
Definition: Cancer or tumors of the URETER. Hematuria, 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 tumor is in the lower third of the URETER, with a lesser incidence higher up. Annotation: do not confuse with URETHRAL NEOPLASMS, espec in Romance lang: see note on "ureteral" & "urethral" under URETERAL DISEASES; coord IM with histol type of neopl (IM) ID#: D014516Ureteral Obstruction
Definition: Annotation: do not confuse with URETHRAL OBSTRUCTION, espec in Romance lang: see note on "ureteral" & "urethral" under URETERAL DISEASES ID#: D014517Ureterocele
Definition: Cystic dilatation of the ureter with ballooning of the ureteral orifice into the lumen of the bladder. Annotation: cystic dilat of ureter ID#: D014518Urethral Diseases
Definition: Annotation: do not confuse with URETERAL DISEASES, espec in Romance lang: see note on "ureteral" & "urethral" under URETERAL DISEASES; inflamm dis = URETHRITIS ID#: D014522Urethral Neoplasms
Definition: Cancer or tumors 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. Annotation: do not confuse with URETERAL NEOPLASMS, espec in Romance lang: see note on "ureteral" & "urethral" under URETERAL DISEASES; coord IM with histol type of neopl (IM) ID#: D014523Urethral Obstruction
Definition: Obstruction anywhere along the urethra. Annotation: do not confuse with URETERAL OBSTRUCTION, espec in Romance lang: see note on "ureteral" & "urethral" under URETERAL DISEASES; URETHRAL STRICTURE is also available ID#: D014524Urethral Stricture
Definition: Annotation: do not confuse with URETHRAL OBSTRUCTION ID#: D014525Urethritis
Definition: Inflammation of the urethra. (Dorland, 27th ed) Annotation: inflamm of the urethra ID#: D014526Urinary Calculi
Definition: Calculi in any part of the urinary tract. According to their composition or pattern of chemical composition distribution, urinary calculi types may include alternating or combination, cystine, decubitus, encysted, fibrin, hemp seed, matrix, mulberry, oxalate, struvite, urostealith, and xanthic calculi. Annotation: GEN or unspecified; consider BLADDER CALCULI; KIDNEY CALCULI; URETERAL CALCULI; chem composition of calculi: use /chem; /ultrastruct permitted ID#: D014545Urinary Fistula
Definition: An abnormal passage in any organ of the urinary tract or between urinary organs and other organs. Annotation: GEN or unspecified; coord IM with pre-coord urinary organ/diseases (IM); fistula policy: Manual 23.19+; BLADDER FISTULA & VESICOVAGINAL FISTULA are available ID#: D014548Urinary Incontinence
Definition: Annotation: ID#: D014549Urinary Incontinence, Stress
Definition: The involuntary discharge of urine as a result of anatomic displacement which exerts an opening pull on the bladder orifice. It often occurs during coughing or other forceful stresses. (From Dorland, 27th ed) Annotation: stress refers to coughing, sneezing & other forces ID#: D014550Urinary Retention
Definition: Inability to urinate. The etiology of this disorder includes obstructive, neurogenic, pharmacologic, and psychogenic causes. Annotation: inability to urinate caused by obstruction, drugs or psychogenic or neurogenic dis: do not confuse with ANURIA, total suppression of urine secretion by the kidneys ID#: D016055Urinary Tract Infections
Definition: Infections affecting those structures of the body which participate in the secretion and elimination of urine, i.e., the kidney, the ureters, the urinary bladder, and the urethra. Annotation: infection in any organ of the urinary tract; GEN or unspecified; prefer specific organ/diseases coord with infection term; /drug ther: consider also ANTI-INFECTIVE AGENTS, URINARY ID#: D014552Urination Disorders
Definition: Disorders in the frequency of urination, the volume of urine produced or eliminated, or the ability to retain or void urine in normal fashion. Annotation: ID#: D014555Urogenital Abnormalities
Definition: Congenital structural abnormalities of the urogenital system. Annotation: for congen struct abnorm only; must be both uro + genital; GEN or unspecified; prefer specifics or specific parts of urogenital system /abnorm; do not use /congen & do not coord with INFANT, NEWBORN, DISEASES; DF: UROGENITAL ABNORM ID#: D014564Urogenital Diseases
Definition: Diseases of the urogenital tract. Annotation: GEN or unspecified but must be both uro + genital. ID#: D016146Urogenital Neoplasms
Definition: Tumors or cancer of the urogenital tract. Annotation: GEN or unspecified but must be both uro + genital: prefer specific precoord; coord IM with histol type of neopl (IM) ID#: D014565Urologic and Male Genital Diseases
Definition: A collective term for urinary tract diseases in male and female and diseases of the male genitalia. Annotation: not used for indexing; DF:UROL MALE GENITAL DIS CATALOG: do not use ID#: D014569Urologic Diseases
Definition: Diseases of the urinary tract in both male and female. It does not include the male genitalia for which UROGENITAL DISEASES is used for general discussions of diseases of both the urinary tract and the genitalia. Annotation: urinary tract dis only: do not confuse with UROGENITAL DISEASES which is uro + genital; GEN or unspecified: prefer specifics; /diag: consider also DIAGNOSTIC TECHNIQUES, UROLOGICAL; DF: UROL DIS ID#: D014570Urologic Neoplasms
Definition: Tumors or cancer 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. Annotation: neopl of urinary tract only: do not confuse with UROGENITAL NEOPLASMS which is uro + genital; GEN or unspecified: prefer specifics; coord IM with histol type of neopl (IM); DF: UROL NEOPL ID#: D014571Urological Manifestations
Definition: Clinical disturbances of the urinary system. Annotation: not used in indexing ID#: D020924Urticaria
Definition: A vascular reaction of the skin characterized by erythema and wheal formation due to localized increase of vascular permeability. The causative mechanism may be allergy, infection, or stress. Annotation: a form of immediate hypersensitivity; note X ref ID#: D014581Urticaria Pigmentosa
Definition: The most common form of mastocytosis. It occurs primarily in children and is typically characterized by multiple persistent small, reddish-brown, hyperpigmented, pruritic macules and papules. They are located most commonly on the trunk, but seen also on the extremities, head, and neck. (Dorland, 27th ed) Annotation: a pigmentation disord; most common form of mastocytosis ID#: D014582Uterine Diseases
Definition: Annotation: inflamm dis = ENDOMETRITIS ID#: D014591Uterine Hemorrhage
Definition: Hemorrhage from vessels in the uterus, sometimes manifested as vaginal bleeding. Annotation: "vaginal bleeding" usually refers to uterine bleeding through the vagina & goes here but check text for bleeding from vaginal inj, vaginal dis, vaginal tumors, etc (index under proper VAGINA term) ID#: D014592Uterine Inertia
Definition: Failure of the uterus to contract with normal strength and duration and at normal intervals during labor. It is also called uterine atony. Annotation: failure of uterus to contract during labor; includes "atony"; check tags FEMALE and PREGNANCY ID#: D014593Uterine Inversion
Definition: A turning of the uterus inside out, whereby the fundus is forced through the cervix and protrudes into or outside of the vagina. (Dorland, 28th ed) Annotation: do not confuse with UTERINE PROLAPSE ID#: D019687Uterine Neoplasms
Definition: Tumors or cancer of the UTERUS. Annotation: fibroma = LEIOMYOMA (IM) + UTERINE NEOPLASMS (IM); coord IM with histol type of neopl (IM); CERVIX NEOPLASMS & ENDOMETRIAL NEOPLASMS are available ID#: D014594Uterine Perforation
Definition: Penetration through the uterine wall. Annotation: ID#: D014595Uterine Prolapse
Definition: Downward displacement of the uterus. It is classified in various degrees: in the first degree the cervix is within the vaginal orifice; in the second degree the cervix is outside the orifice; in the third degree the entire uterus is outside the orifice. Annotation: downward displacement of uterus; do not confuse with UTERINE INVERSION ID#: D014596Uterine Rupture
Definition: A tearing of uterine tissue; it may be traumatic or spontaneous due to multiple pregnancy, large fetus, previous scarring, or obstruction. Annotation: spontaneous or traumatic but do not coord with RUPTURE or RUPTURE, SPONTANEOUS ID#: D014597Uveal Diseases
Definition: Diseases of the uvea. Annotation: inflamm dis = UVEITIS & specifics ID#: D014603Uveal Neoplasms
Definition: Tumors or cancer of the UVEA. Annotation: /blood supply /chem /second /secret /ultrastruct permitted; coord IM with histol type of neopl (IM); CHOROID NEOPLASMS & IRIS NEOPLASMS are also available ID#: D014604Uveitis
Definition: Inflammation of part or all of the uvea, the middle (vascular) tunic of the eye, and commonly involving the other tunics (sclera and cornea, and the retina). (Dorland, 27th ed) Annotation: inflamm of uvea; GEN: prefer specifics ID#: D014605Uveitis, Anterior
Definition: Inflammation of the anterior uvea comprising the iris, angle structures, and the ciliary body. Manifestations of this disorder include ciliary injection, exudation into the anterior chamber, iris changes, and adhesions between the iris and lens (posterior synechiae). Intraocular pressure may be increased or reduced. Annotation: inflammation of both the iris & ciliary body; of iris alone = IRITIS, of ciliary body alone = CILIARY BODY (IM) + UVEITIS, ANTERIOR (IM) ID#: D014606Uveitis, Intermediate
Definition: Inflammation of the pars plana, ciliary body, and adjacent structures. Annotation: inflammation of pars plana, ciliary body & adjacent structures; of pars plana alone = PARS PLANITIS; of ciliary body alone = CILIARY BODY (IM) + UVEITIS, ANTERIOR (IM) ID#: D015867Uveitis, Posterior
Definition: Inflammation of the choroid as well as the retina and vitreous body. Some form of visual disturbance is usually present. The most important characteristics of posterior uveitis are vitreous opacities, choroiditis, and chorioretinitis. Annotation: inflammation of the choroid, retina & vitreous body; of choroid alone = CHOROIDITIS; of choroid + retina = CHORIORETINITIS; of vitreous body alone = VITREOUS BODY (IM) + EYE DISEASES (NIM) ID#: D015866Uveitis, Suppurative
Definition: Intraocular infection caused mainly by pus-producing bacteria and rarely by fungi. The infection may be caused by an injury or surgical wound (exogenous) or by endogenous septic emboli in such diseases as bacterial endocarditis or meningococcemia. Annotation: coord IM with specific bacterial or fungal infect (IM) ID#: D015829Uveomeningoencephalitic Syndrome
Definition: A syndrome characterized by bilateral granulomatous UVEITIS with IRITIS and secondary GLAUCOMA, premature ALOPECIA, symmetrical VITILIGO, poliosis circumscripta (a strand of depigmented hair), HEARING DISORDERS, and meningeal signs (neck stiffness and headache). Examination of the cerebrospinal fluid reveals a pattern consistent with MENINGITIS, ASEPTIC. (Adams et al., Principles of Neurology, 6th ed, p748; Surv Ophthalmol 1995 Jan;39(4):265-292) Annotation: DF: UVEOMENINGOENCEPH SYNDROME ID#: D014607Uveoparotid Fever
Definition: A manifestation of sarcoidosis marked by chronic inflammation of the parotid gland and the uvea. Annotation: ID#: D014608