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What is Histological clefts in Lichen planus are and explain in detail?
In Lichen Planus, there is degeneration of keratinocytes of stratum basale (stratum germinativum) and disruption of anchoring elements of the epithelial basement membrane and basal keratinocytes (eg: Hemi desmosomes, filaments, fibrils). This weakens the epithelial-connective tissue interface resulting in formation of histologic clefts (i.e., Max-Joseph spaces).