Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-6-3
pubmed:abstractText
In 1893, Unna published his theory of Abtropfung in which he suggested that melanocytic nevus cells originate in the epidermis and drop off into the dermis. We studied 3,534 nevi from patients of all ages to reassess this almost sacred concept. If Unna was correct, one would expect that in childhood most nevi would be junctional, while in late adult life almost all nevi would be intradermal. In our series, no child under age 10 had a purely junctional nevus, 52% had compound nevi, and 48% had dermal nevi. In patients older than age 60, 12% had junctional nevi, 23% had compound nevi, and 65% had dermal nevi. Our data fail to support the concept of Abtropfung; they fit better with the contradictory theory of upward migration of nevus cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0193-1091
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
135-9
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Which direction do nevus cells move? Abtropfung reexamined.
pubmed:affiliation
Department of Dermatology, Technical University of Munich, Germany.
pubmed:publicationType
Journal Article