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They comprised such characteristic features as lymphohistiocytic bandlike infiltrate occupying the upper dermis and obscuring the dermoepidermal junction, irregular acanthosis resembling the typical saw-toothed appearance, extensive liquefactive degeneration of the basal layer of the epidermis with subepidermal clefts (Max Joseph spaces), pigmentary incontinence, and numerous cytoid bodies forming huge clusters.
5,6) Direct immunofluorescence, displaying granular fibrinogen and variable immunoglobulin deposited linearly near the basement membrane, and possibly cytoid bodies, is useful in cases of suspected OLP with nondiagnostic histological findings, as well as in those with gingival involvement.
Both conventional lichen planus and its subtropicus variant have cytoid bodies that stain positive to IgG and IgM on direct immunofluorescence microscopy, Dr.