Fissures and ridges

From dermoscopedia

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 Editor: Ralph P. Braun

 Author(s): Ralph P. Braun     ·  Katrin Kerl
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Author(s) Ralph P. Braun · Katrin Kerl
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Fissures (invaginations or sulci) are commonly seen in seborrheic keratosisThis glossary term has not yet been described. and may also be seen in melanocyticThis glossary term has not yet been described. neviThis glossary term has not yet been described. with congenital pattern. In essence, fissures are linear grooves in the epidermis and, like comedo-like openings[[Comedo like openings]], correspond to surface invaginations. A pattern that resembles “brain-like appearancelines, curved and thick to describe the pattern and fissures and ridges (former synonyms “gyry and sulci” and “fat fingers”) to describe the structural components of the pattern SK” or cerebriform appearance is created, with the grooves resembling “sulci” and the intervening ridges resembling surface“gyri” [1]. Fissures correspond histopathologically to wedgeshaped, keratin-filled invaginations of the epidermis [2].

Milia like cysts comedo like openings schematic new.jpg
Fissures and Ridges.JPG


ReferencesThis is material contained in a footnote or bibliography holding further information.
  1. Kittler et al.: Standardization of terminology in dermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections./dermatoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections.: Results of the third consensus conference of the International Society of DermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections.. J. Am. Acad. Dermatol. 2016;74:1093-106. PMID: 26896294. DOI.
  2. Minagawa: Dermoscopy-pathologyThis glossary term has not yet been described. relationship in seborrheic keratosis. J. Dermatol. 2017;44:518-524. PMID: 28447350. DOI.