| keratoderma symmetrica | The occurrence of symmetrical diffuse or patchy areas of hypertrophy of the horny layer of the epidermis on the palms and soles; a group of ectodermal dysplasias of considerable variety, and either autosomal dominant or recessive inheritance. Synonym: ichthyosis palmaris et plantaris, keratoderma palmaris et plantaris, keratoderma symmetrica, keratoma plantare sulcatum, keratosis palmaris et plantaris, tylosis palmaris et plantaris. (05 Mar 2000) |
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| keratoderma, palmoplantar | Group of mostly hereditary disorders characterised by thickening of the palms and soles as a result of excessive keratin formation leading to hypertrophy of the stratum corneum (hyperkeratosis). (12 Dec 1998) |
| keratoderma, palmoplantar, diffuse | An autosomal dominant disorder characterised by a widely distributed, well-demarcated hyperkeratosis of the palms and soles. There is more than one genotypically distinct form, each of which is clinically similar but histologically distinguishable. Diffuse palmoplantar keratoderma is distinct from palmoplantar keratoderma (keratoderma, palmoplantar), as the former exhibits autosomal dominant inheritance and hyperhidrosis is frequently present. (12 Dec 1998) |
| keratodermatitis | Inflammation with proliferation of the horny layer of the skin. Origin: kerato-+ G. Derma, skin, + -itis, inflammation (05 Mar 2000) |
| keratoectasia | A bulging forward of the cornea. Synonym: corneal ectasia, keratectasia. (05 Mar 2000) |
| keratoelastoidosis | Hyperkeratosis and degeneration of dermal elastic tissue. See: acrokeratoelastoidosis. Origin: kerato-+ Mod. L. Elasticus, elastic, fr. G. Elastikos, propulsive, fr. Elauno, to drive + eidos, resemblance, + suffix -osis, condition (05 Mar 2000) |
| keratoelastoidosis marginalis | Hyperkeratosis and solar elastosis presenting as linear papules along the junction of the palms and dorsal surface of the hands in the elderly. Origin: L. Marginal (05 Mar 2000) |
| keratoepithelioplasty | A surgical procedure for the repair of persistent corneal epithelial defects. All the corneal epithelium is removed from the recipient cornea, and small pieces of donor cornea, with epithelium attached, are placed at the corneoscleral limbus. The donor corneal eplithelium grows and spreads out to cover the recipient cornea. Origin: kerato-+ epithelio-+ G. Plastos, formed (05 Mar 2000) |
| keratogenesis | Production or origin of horny cells or tissue. Origin: kerato-+ G. Genesis, production (05 Mar 2000) |
| keratogenetic | Relating to keratogenesis. (05 Mar 2000) |
| keratogenous | Causing a growth of cells that produce keratin and result in the formation of horny tissue, such as fingernails, scales, feathers, etc. (05 Mar 2000) |
| keratogenous membrane | The area of the corium on which the nail rests; it is extremely sensitive and presents numerous longitudinal ridges on its surface. According to some anatomists, the nail bed is the portion covered by the body of the nail, the nail matrix being only the part on which the root of the nail rests. Synonym: matrix unguis, keratogenous membrane, nail matrix, onychostroma. (05 Mar 2000) |
| keratoglobus | Congenital anomaly consisting of an enlarged anterior segment of the eye. Synonym: anterior megalophthalmos, megalocornea. Origin: kerato-+ L. Globus, ball (05 Mar 2000) |
| keratoglossus | <anatomy> Muscular fibres from lesser horn of hyoid bone occasionally separated from the hyoglossus, but usually forming part of it. Synonym: musculus chondroglossus, ceratoglossus, keratoglossus. (05 Mar 2000) |
| keratography | A record or portrayal of the cornea. See: photokeratoscope, videokeratoscope. Origin: kerato-+ G. Grapho, to write (05 Mar 2000) |