Wickham's striae are seen in (AIIMS May 2014)
Wickham's stria are seen in lichen planus these lesions are usually 3-5 mm in diameter, whitish criss-cross streaks on
their surface (Wickham's striae)
Extra Edge: Lichen planus
a. Self – limiting papulosquamous disease (Scaling dermatosis).
b. Flat-topped, violaceous papules on flexor surface (wrist / ankle) [ remember –5 p’ pruritic, purple, polygonal, plain top papule]
c. Exact etiology: not known a/w HLA B-7 & HLA A-3, HCV
d. Wickham’s striae (white/grayish lines)
e. T-cell infiltration in Dermis
f. Pterygium formation (characteristiC.
g. Kobner phenomena+
h. T/t: - topical calamine lotion
- Topical steroid
i. Hyperkeratosis, acanthosis, liquefactive degeneration of basal layer flattening of rete ridges, Civatte bodies+
j. Lesions are B/L symmetrical over flexural aspect of forearm, wrist, legs, waist penis & oral mucous membrane (white streaks with lacy network).
T/t: systemic steroids for generalized Lichen planus. After T/t lesions become hyperpigmented.
Extra Edge: Max-Joseph spaces are artificial subepidermal clefts are often seen in lichen ruber variants of lichen planus