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Wickham striae or Wickham's striae are whitish lines visible in the papules of lichen planus and other dermatoses, typically in the oral mucosa. [1] The microscopic appearance shows hypergranulosis. They are named after Louis Frédéric Wickham. [2] [3]
Lesions may have a thin, transparent, and adherent scale. Fine whitish points or lacy lines (Wickham's striae) may be seen on the surface of well-developed papules. [2] Annular 'Ring-shaped' lesions that develop gradually from single small pigmented spots into circular groups of papules with clear, unaffected skin in the center.
Wickham's striae: Louis Frédéric Wickham: dermatology: lichen planus: white or greyish lines on the lichen planus lesions Widal test: Georges-Fernand Widal: microbiology: enteric fever: serum agglutination; obsolete(?) Winterbottom's sign: Thomas Masterman Winterbottom: tropical medicine: trypanosomiasis: posterior cervical chain adenopathy
Pastia's sign, Pastia lines, or Thompson's sign is a clinical sign in which pink or red lines formed of confluent petechiae are found in skin creases, particularly the crease in the antecubital fossa, the soft depression on the inside of the arm; the folding crease divides this fossa where the forearm meets the (upper) arm (the biceps, triceps, humerus section of the upper extremity); the ...
Striae, or "stretch marks", begin as reddish or purple lesions which can appear anywhere on the body, but are most likely to appear in places where larger amounts of fat are stored. The most common places are the abdomen (especially near the navel ), breasts, upper arms, underarms, back, thighs (both inner and outer), hips, and buttocks.
Louis Frédéric Wickham (28 February 1861 in Paris – 14 October 1913 in Mesnil-le-Roi) was a French physician and pathologist remembered for describing Wickham striae. [1] He trained in medicine in Paris, receiving his M.D. in 1890.
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Angioid streaks, also called Knapp streaks or Knapp striae, are small breaks in Bruch's membrane, an elastic tissue containing membrane of the retina that may become calcified and crack. [2] Up to 50% of angioid streak cases are idiopathic. [3] It may occur secondary to blunt trauma, or it may be associated with many systemic diseases. [4]