Tièche-Jadassohn naevus

Alternative eponyms

Related people

A sharply defined, round or oval, smooth and slightly raised, hard, dark blue, benign melanocytic tumor.

Description

A sharply defined, round or oval, smooth and slightly raised, hard, dark blue, benign melanocytic tumor covered by smooth skin and formed by heavily pigmented spindle-shaped or dendritic melanocytes in the reticular dermis. The individual nevi vary in size from 2 to 15 mm in diameter and are found most commonly on the face, forearms, hands, or thighs, and occasionally in the oral cavity. Etiology unknown. Both sexes affected. Female-to-male ratio 2.5: 1.

Bibliography

  • M. Tièche:
    Über benigne Melanome ("Chromatophorome") der Haut - "blaue Neavi."
    Virchows Archiv für pathologische Anatomie und Physiologie und für klinische Medizin, 1906, 186: 212-229.
  • J. Jadassohn, in:
    Dermatologie, Wien, 1938: 429.

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