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Keras (Greek) - Horn
10 terms share this root
Actinic keratosis

A condition by which large amount sun "rays" lead to scaly "horn" like patches of the skin.

  • Aktis (Greek) - Ray
  • Keras (Greek) - Horn
  • Osis (Greek) - A condition, disease
  • Usually caused by sun damage
  • Hyperkeratosis
  • Epithelial hyperkeratosis

    A “condition” in which “excess” material that also makes up animal “horns” in is made in the “above” surface layer of tissue

    • Epi (English) - Above, Upon
    • Thele (Greek) - Nipple, teat
    • Hyper (Greek) - Over, beyond, excess
    • Keras (Greek) - Horn
    • Osis (Greek) - A condition, disease
  • Thickening of the stratum corneum layer with an increased production of keratin that can be benign or due to friction
  • Benign frictional hyperkeratosis
  • Hyperkeratosis

    "Disease" resulting in an "excess horny" layer of the skin.

    • Hyper (Greek) - Over, beyond, excess
    • Keras (Greek) - Horn
    • Osis (Greek) - A condition, disease
  • Thickening of the outermost layer of the epidermis (stratum corneum)
  • Often associated with an abnormal increase in the amount of keratin
  • Associated with psoriasis, calluses, and verrucae
  • Literally "excess horny tissue disease." Horny tissue is keratin, which is found in skin.
  • Keratin

    A fibrous structural protein that is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails (and, interestingly, "horns").

    Keratin pearls

    A keratinized structure found in regions where abnormal squamous cells form concentric layers (that actually look like "pearls". Keratin comes from a word that means "horn" because the protein is abundant in the horns of animals.

  • This disease occurs in children under five years of age. It affects many organ systems, mainly those including the blood vessels, skin, mucous membranes, and lymph nodes.
  • Keratoacanthoma

    A common lowgrade skin "tumor" that originates from the neck of the hair follicle, and is considered a type of squamous cell carcinoma. It sticks out of the skin, like a "spine" and it is capped with "keratin" particles.

    • Keras (Greek) - Horn
    • Acanthus (Greek) - Point, Thorn, Spine
    • Oma (Greek) - Morbid growth, mass, tumor
  • Dome shaped tumor of the skin.
  • Keratoconjunctivitis

    "Inflammation" of the cornea (which contains "keratin") and "conjunctiva".

    • Keras (Greek) - Horn
    • Conjugere (Late Latin) - To Bring Together
    • Itis (Greek) - Inflammation, pertaining to disease
  • Most common causes are eye dryness (keratoconjunctivitis sicca) or adenoviral infection.
  • Keratosis follicularis

    A rare, mainly cutaneous, disease in which desmosometonofilament defects are linked to acantholysis.

    • Keras (Greek) - Horn
    • Osis (Greek) - A condition, disease
    • Follis (Latin) - Bellows
  • Inherited as autosomal dominant trait. Mutation of the gene that encodes a CalciumATP pump (SERCA2) leads to defective desmosomes. Microscopically best designated as acantholytic dyskeratosis.
  • Parakeratosis

    A "condition" that is "like" "keratosis", except that nuclei are retained in the cells

    • Para (Greek) - Along, side, beside, near, against, contrary to
    • Keras (Greek) - Horn
    • Osis (Greek) - A condition, disease
  • Keratinization of the stratum corneum with the retention of nuclei
  • Seborrheic keratosis

    A skin "condition" with benign growths (composed same protein that comprises animal "horns") that have "grease" "flowing" from them.

    • Sebum (Latin) - Tallow, grease
    • Hroia (Greek) - Flow, flux
    • Keras (Greek) - Horn
    • Osis (Greek) - A condition, disease
  • Mostly associated with old age
  • LesserTrelat sign
  • Colon cancer