72,234 articles
Cutaneous erythema multiforme
Cutaneous erythema multiforme (ICD-11 EB12.0, erythema multiforme minus) is skin-confined erythema multiforme, typically triggered by recurrent herpes simplex infection, marked by target lesions and distinguished from mucocutaneous EB12.1 disease.
Cutaneous horn
Cutaneous horn (cornu cutaneum, keratin horn): a hard conical keratin projection from the skin, usually in older fair-skinned adults on sun-exposed sites; roughly half have benign bases, half premalignant or malignant ones, requiring excision biopsy of the base.
Cutaneous larva migrans
Cutaneous larva migrans, or creeping eruption, is a parasitic skin disease in which dog or cat hookworm larvae migrate under human skin, leaving an intensely itchy, winding red track.
Cutaneous larva migrans in animals
Cutaneous larva migrans in animals, also called hookworm dermatitis, is an inflammatory, creeping skin disease of dogs, cats, cattle, and sheep caused by penetrating hookworm larvae.
Cutaneous leishmaniasis
Cutaneous leishmaniasis (CL), also called Oriental sore, is the most common form of leishmaniasis: skin ulcers caused by Leishmania parasites transmitted by female phlebotomine sandflies, with 600,000 to 1 million estimated annual cases.
Cutaneous leukocytoclastic vasculitis
Cutaneous leukocytoclastic vasculitis (LCV, hypersensitivity vasculitis, cutaneous leukocytoclastic angiitis) is a skin-limited small-vessel vasculitis causing palpable purpura on the lower extremities, diagnosed by biopsy showing neutrophilic infiltrate, leukocytoclasia, and fibrinoid necrosis; about 90% of idiopathic cases resolve in weeks to months.
Cutaneous listeriosis
Cutaneous listeriosis, skin infection by Listeria monocytogenes (ICD-10 A32.0, ICD-11 1C1A.0): rare self-limited papulopustular rash after direct inoculation, mainly in veterinarians and farmers exposed to bovine abortions.
Cutaneous lymphangiectasia
Cutaneous lymphangiectasia (acquired lymphangioma, lymphangiectasis) is dilation of superficial skin lymphatic vessels after obstruction or injury, causing frogspawn-like oozing vesicles, cellulitis risk, and treatments including CO2 laser, sclerotherapy, and excision.
Cutaneous mastocytoma
Cutaneous mastocytoma (solitary mastocytoma), a form of cutaneous mastocytosis, is a benign hyperpigmented skin nodule of mast cell accumulation, usually presenting in infancy, with Darier sign, and spontaneous resolution before puberty.
Cutaneous mucinosis
Cutaneous mucinosis (mucinoses) is a group of uncommon skin disorders with abnormal mucin (hyaluronic acid) deposition in dermis or follicles, classified as primary or secondary, dermal or follicular, including scleromyxedema, follicular mucinosis, and focal mucinosis.
Cutaneous nocardiosis
Cutaneous nocardiosis is a skin infection by Nocardia bacteria, usually N. brasiliensis, acquired by traumatic inoculation or via disseminated disease; treated with trimethoprim-sulfamethoxazole.
Cutaneous non-tuberculous mycobacterial infection
Cutaneous non-tuberculous mycobacterial infection (ICD-11 1B21.2): skin and soft tissue infection from environmental NTM, mostly rapid growers like M. abscessus, M. fortuitum, M. chelonae, acquired via trauma, surgery, or injections, diagnosed by culture, treated with months of multidrug therapy.
Cutaneous pseudolymphoma
Cutaneous pseudolymphoma, also called cutaneous lymphoid hyperplasia or lymphocytoma cutis, is a benign reactive skin lymphoproliferation mimicking lymphoma clinically and histologically, divided into T-cell and B-cell types, caused by infections, drugs, tattoos, or bites.
Cutaneous sarcoidosis
Cutaneous sarcoidosis: skin involvement by sarcoidosis, occurring in 20-35% of patients, often the first sign. Specific lesions (lupus pernio, papules, plaques) show noncaseating granulomas; diagnosis requires biopsy plus exclusion of mimics.
Cutaneous sarcoma
Cutaneous sarcoma is a rare malignant skin tumor arising from mesenchymal connective-tissue cells such as fibroblasts, smooth muscle, and vascular endothelium, classified under ICD-11 code 2C35.
Cutaneous tuberculosis
Cutaneous tuberculosis (CTB, tuberculosis cutis) is rare skin infection by Mycobacterium tuberculosis, about 1–2% of TB cases. Forms include lupus vulgaris, scrofuloderma, TB verrucosa cutis, and tuberculids; diagnosed by biopsy, culture, and PCR.
Cutberto Garza
Cutberto Garza is an American physician and nutrition scientist, longtime leader of Cornell's nutrition division, who chaired the WHO Child Growth Standards effort and the 1999 U.S. Dietary Guidelines Advisory Committee.
Cuterebra
Cuterebra, rodent and rabbit bot flies (New World genus, Oestridae), whose larvae cause cuterebriasis in pets: subcutaneous warbles with breathing pores, occasional CNS disease in cats, treated by manual larval extraction.
Cuticle
Cuticle: the eponychium, the skin band sealing the nail plate to the proximal nail fold, and the outermost protective cell layer of a hair shaft; both barriers, damage causes paronychia or split ends.
Cutinase/acetylxylan esterase
Cutinase/acetylxylan esterase covers two α/β-hydrolase serine esterases: cutinase (EC 3.1.1.74), a lidless fungal enzyme degrading cutin and PET polyesters, and acetylxylan esterase (EC 3.1.1.72), which deacetylates xylan hemicellulose for biomass conversion.
Cutis
Cutis is a monthly peer-reviewed US clinical dermatology journal founded in 1965, ISSN 0011-4162, indexed in MEDLINE since 1976, published by Frontline Medical Communications, with SJR 0.276 (Q3) and no author APC.
Cutis gyrata-acanthosis nigricans-craniosynostosis syndrome
Cutis gyrata-acanthosis nigricans-craniosynostosis syndrome, or Beare-Stevenson syndrome (BSS), a rare severe FGFR2-related craniosynostosis with cutis gyrata, acanthosis nigricans, cloverleaf skull, and high infant mortality.
Cutis laxa with severe pulmonary, gastrointestinal and urinary anomalies
Cutis laxa with severe pulmonary, gastrointestinal and urinary anomalies, also called Urban-Rifkin-Davis syndrome or ARCL1C (OMIM 613177), is an autosomal recessive LTBP4-related connective tissue disorder with neonatal onset, generalized lax skin, early-onset emphysema, and bladder, intestinal, and kidney anomalies.
Cutis marmorata telangiectatica congenita
Cutis marmorata telangiectatica congenita (CMTC, van Lohuizen syndrome) is a rare congenital capillary malformation causing persistent marbled skin, distinguished from physiologic cutis marmorata by failure to resolve with warming; GNA11 mosaicism, glaucoma risk.
Cutis verticis gyrata
Cutis verticis gyrata (CVG) is a rare scalp condition in which thickened skin forms folds resembling the brain's gyri, occurring as a primary form or secondary to other disease.
Cutting (plant)
Cutting (plant propagation): a severed stem, leaf, or root piece grown into a clone of the parent via adventitious root formation; types include softwood, semi-hardwood, hardwood, herbaceous, leaf, and root cuttings, aided by auxin.
Cuttlebone
Cuttlebone (sepion): the internal porous aragonite shell of cuttlefish (Sepia), ~100 chambers regulating buoyancy osmotically; distinct from squid gladius and nautilus shell; sold for cage birds.
Cuttlebone as a commercial product
Cuttlebone is the internal shell of cuttlefish, sold commercially as a calcium supplement for pet birds and reptiles, and used by jewellers as a casting mold since the sixteenth century.
Cuttlefish
Cuttlefish (order Sepiida) are ten-armed cephalopod molluscs with an internal cuttlebone, rapid chromatophore-based camouflage despite colorblindness, and advanced invertebrate cognition including 50-130 s delay of gratification; over 90 species in tropical and temperate seas.
Cuttlefish anatomy and physiology
Cuttlefish anatomy centers on the cuttlebone, an internal chambered shell used as a buoyancy tank, along with a W-shaped pupil, ten feeding appendages, three hearts, and copper-based haemocyanin blood.