25,729 articles
Triamcinolone hexacetonide
Triamcinolone hexacetonide (Aristospan, Hexatrione 2%) is a long-acting, poorly soluble intra-articular corticosteroid suspension preferred for joint injections in juvenile idiopathic arthritis, with longer relapse-free response than triamcinolone acetonide.
Triangulation (psychology)
Triangulation in psychology, a family-systems concept from Murray Bowen's theory, describes two feuding family members, usually parents, drawing a third person, most often a child, into their conflict.
Triazolam
Triazolam (Halcion) is a short-acting benzodiazepine hypnotic for sleep onset insomnia, half-life 2-3 hours, 0.125-0.25 mg tablets, boxed warning, CYP3A4 interactions, withdrawn in UK and France.
Tribal food distribution and food sovereignty programs in the United States
Tribal food distribution and food sovereignty programs in the United States center on FDPIR, a federal program delivering monthly USDA food packages to income-eligible Native American households on or near reservations.
Tribhuvan University Teaching Hospital
Tribhuvan University Teaching Hospital (TUTH, त्रिभुवन विश्वविद्यालय शिक्षण अस्पताल) is Nepal's first medical college hospital, in Maharajgunj, Kathmandu, under the Institute of Medicine; built with Japanese aid, inaugurated 1986, a top national referral center.
Tribhuvanakirti rasa
Tribhuvanakirti rasa (त्रिभुवनकीर्ति रस), also Tribhuvan Kirti Ras, is an Ayurvedic herbo-mineral Kharaliya Rasayana for fever, made from cinnabar, borax, aconite, and trikatu processed with herbal juices; dose 125-250 mg.
Tribromsalan
Tribromsalan (TBS, 3,4',5-tribromosalicylanilide, CAS 87-10-5) is a brominated salicylanilide formerly used as an antimicrobial in medicated soaps, banned by the FDA in 1975 and prohibited in EU cosmetics for causing photosensitization.
Tricaprilin
Tricaprilin (AC-1202, CER-0001, glyceryl tricaprylate) is an 8-carbon medium-chain triglyceride ketogenic agent studied for mild to moderate Alzheimer's disease, marketed as Axona, with benefit mainly in APOE4-negative patients.
Tricare
TRICARE is the uniformed services health care program of the U.S. Department of Defense, administered by the Defense Health Agency, covering over 9 million active duty members, families, Guard and Reserve members, retirees, and survivors through plans such as Prime, Select, and TRICARE For Life.
Triceps
Triceps brachii, the three-headed extensor muscle of the posterior arm supplied by the radial nerve with frequent axillary and ulnar variations; its distal tendon ruptures are rare, mostly in male weightlifters, repaired surgically with good outcomes.
Trichiasis without entropion
Trichiasis without entropion (ICD-11 9A04.0) is misdirected eyelashes touching the cornea or conjunctiva with a normal lid margin position. Causes include blepharitis, trachoma, and burns; treated by epilation, electrolysis, laser, or surgery.
Trichilemmal cyst
A trichilemmal cyst, also called a pilar cyst, is a keratin-filled cyst of the hair follicle's outer root sheath, occurring mostly on the scalp in middle-aged women.
Trichinosis
Trichinosis (trichinellosis), caused by Trichinella roundworms, is acquired by eating raw or undercooked meat, now mostly wild game such as bear; symptoms include fever, myalgia, periorbital edema, and eosinophilia, treated with albendazole or mebendazole.
Trichlormethiazide
Trichlormethiazide (Naqua, Metahydrin) is an oral thiazide diuretic similar to hydrochlorothiazide, C8H8Cl3N3O4S2, ATC C03AA06, dosed 2–4 mg daily for edema and hypertension; first approved 1960, discontinued in the US.
Tricho-dento-osseous syndrome
Tricho-dento-osseous syndrome (TDO, TDO syndrome, OMIM 190320) is a rare autosomal dominant DLX3-related ectodermal dysplasia causing curly hair at birth, enamel hypoplasia, taurodontism, and increased bone density.
Trichobezoar
Trichobezoar: a hairball (bezoar) of swallowed hair in the stomach, from trichotillomania and trichophagia; ~90% female, ages 10-19; Rapunzel syndrome when it extends into small bowel; usually surgical removal.
Trichofolliculoma
Trichofolliculoma is a rare benign hair follicle hamartoma, usually a flesh-colored facial papule with a central pore and vellus hairs; histology shows a dilated central follicle with radiating secondary follicles, and prognosis is excellent.
Trichohepatoenteric syndrome
Trichohepatoenteric syndrome (THES, syndromic diarrhea, SD/THE) is a rare autosomal recessive enteropathy from SKIV2L or TTC37 mutations, causing neonatal intractable diarrhea, woolly hair, facial dysmorphism, liver disease, immunodeficiency, and up to 50% mortality.
Trichomegaly-retina pigmentary degeneration-dwarfism syndrome
Trichomegaly-retina pigmentary degeneration-dwarfism syndrome, or Oliver-McFarlane syndrome (OMCS, OMIM 275400), is an extremely rare autosomal recessive PNPLA6 disorder with trichomegaly, chorioretinal atrophy, hypopituitarism, short stature, and intellectual disability.
Trichomonas vaginalis
Trichomonas vaginalis, a flagellated protozoan parasite, causes trichomoniasis, the most common non-viral STI worldwide; about 156 million new cases in 2020, diagnosed by NAAT, treated with metronidazole.
Trichomoniasis
Trichomoniasis, caused by the protozoan Trichomonas vaginalis, is the most common non-viral STI worldwide, with about 156 million new cases in 2020; treated with metronidazole or tinidazole, linked to HIV risk and preterm birth.
Trichorhinophalangeal syndrome type 1
Trichorhinophalangeal syndrome type 1, or Sugio-Kajii syndrome, is a rare genetic disorder marked by sparse hair, a bulbous nose, cone-shaped finger bones, thin nails, and short stature.
Trichorhinophalangeal syndrome type 2
Trichorhinophalangeal syndrome type 2 (TRPS II, Langer-Giedion syndrome): rare autosomal dominant contiguous gene deletion of TRPS1, RAD21, EXT1 at 8q23.3-q24.11, causing short stature, sparse hair, distinctive face, cone-shaped epiphyses, multiple osteochondromas, and mild intellectual disability.
Trichoscopy
Trichoscopy is dermoscopic imaging of the hair and scalp, a noninvasive, low-cost technique for diagnosing hair loss and scalp disease by magnifying hair shafts, follicular openings, and blood vessels.
Trichostrongyliasis
Trichostrongyliasis (trichostrongylosis) is a zoonotic intestinal nematode infection caused by Trichostrongylus species such as T. colubriformis, T. axei, and T. orientalis, acquired by ingesting larvae on contaminated vegetables; mostly asymptomatic, diagnosed by eggs in stool.
Trichotillomania
Trichotillomania, or hair-pulling disorder, is a psychiatric disorder of recurrent hair pulling causing hair loss, classified in DSM-5 as an obsessive-compulsive and related disorder, treated first with habit reversal training.
Trichromacy
Trichromacy: normal human color vision based on three cone classes (L, M, S) such that any color can be matched with three primaries; foundation of colorimetry, distinct from dichromacy and tetrachromacy.
Trichrome stain
The trichrome stain is a histological method using contrasting acid dyes to color collagen blue or green while muscle and cytoplasm stain red, widely used for liver fibrosis.
Trichuriasis
Trichuriasis (whipworm infection), caused by the nematode Trichuris trichiura, an intestinal soil-transmitted helminth infecting hundreds of millions; eggs infective after 15-30 days in soil, treated with mebendazole or albendazole.
Triclabendazole
Triclabendazole (Egaten, Fasinex) is a benzimidazole anthelmintic active against immature and adult Fasciola liver flukes and Paragonimus; WHO's only recommended fascioliasis drug, FDA-approved 2019, with livestock resistance reported since the mid-1990s.