This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Histological clefts in Lichen planus are 
Select and explain. 
A. Civatte bodies, B. Wickham's Striae, C. Max - Joseph spaces, D. Auspitz's sign
C: Max - Joseph spaces
Answer: C: Max - Joseph spaces 
Explanation: 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).