Wiktionary
asboe-hansen sign
n. (context medicine English) The extension of a blister to adjacent unblistered skin when pressure is put on the top of the bulla.
Wikipedia
Asboe-Hansen sign
The Asboe-Hansen sign (also known as "indirect Nikolsky sign" or "Nikolsky II sign") refers to the extension of a blister to adjacent unblistered skin when pressure is put on the top of the bulla.
This sign is named for Gustav Asboe-Hansen (1917–1989), Danish physician.