Tzanck test

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A positive Tzanck test, showing three multinucleated giant cells ("Tzanck cells") in center.

In dermatopathology, the Tzanck test, also Tzanck smear, is scraping of an ulcer base to look for Tzanck cells. It is sometimes also called the Chickenpox skin test and the herpes skin test.

Tzanck cells (multinucleated giant cells) are found in:


It is named after Arnault Tzanck (1886–1954), a French dermatologist.


  1. ^ Folkers E, Oranje AP, Duivenvoorden JN, van der Veen JP, Rijlaarsdam JU, Emsbroek JA (August 1988). "Tzanck smear in diagnosing genital herpes". Genitourinary medicine 64 (4): 249–54. PMC 1194227. PMID 3169755. // 

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