The Asboe-Hansen sign (also known as "indirect Nikolsky sign'"[1] or "Nikolsky II sign"[1]) refers to the extension of a large blister to adjacent unblistered skin when pressure is put on the top of it.[2][3] It is seen along with Nikolsky's sign, both used to assess the severity of some blistering diseases such as pemphigus vulgaris and severe bullous drug reactions.[4]
This sign is named for the Danish physician Gustav Asboe-Hansen (1917–1989), who first described it in 1960.[5]
^James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "2. Cutaneous signs and diagnosis". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 13. ISBN978-0-323-54753-6.
^Freiman, Anatoli; Kalia, Sunil; O'Brien, Elizabeth A. (July 2006). "Dermatologic Signs". Journal of Cutaneous Medicine and Surgery. 10 (4): 175–182. doi:10.2310/7750.2006.00042.