text: In dermatopathology, the<unk> , also<unk>  smear, is scraping of an ulcer base to look for<unk>  cells.  It is sometimes also called the Chickenpox skin<unk>  and the herpes skin<unk> . The<unk>  is named after Arnault<unk>  (1886-1954), a Russian dermatologist. Atypical<unk>  cell is a large round keratinocyte with a hypertrophic nucleus, hazy or absent nucleoli, and abundant basophilic cytoplasm. The basophilic staining is deeper peripherally on the cell membrane due to the cytoplasm's tendency to get condensed at the periphery, leading to a perinuclear halo.<unk>  cells commonly are found in: herpes simplex, varicella, herpes zoster and pemphigus vulgaris.
option_0: Tzanck test
option_1: Pathergy test
option_2: Patrick's test
option_3: Heaf test
option_4: Allen's test
option_5: Ascheim-Zondek test
option_6: Breusch-Pagan test
option_7: Fluorescent treponemal antibody absorbtion 