Abstract
Epidermal tumors were induced in Swiss female mice by a topical application of 9,10-dimethyl-1,2-benzanthracene solution followed by repeated applications of croton oil solutions. Fourteen benign and malignant tumors were sampled 25 weeks after the treatment had begun, fixed in osmium tetroxide or potassium permanganate, and embedded in Epon. Sections stained with lead hydroxide were examined. In three tumors defects of the epidermal basement membrane were seen. These defects accompanied local invasion of the tumors. The possible mechanisms of the development of this unusual anatomical situation are discussed.
Keywords
BENZANTHRACENES
CROTON OIL
SKIN NEOPLASMS
MeSH Terms
9,10-Dimethyl-1,2-benzanthracene
Animals
Basement Membrane
Benz(a)Anthracenes
Croton Oil
Female
Mice
Neoplasms, Experimental
Skin Neoplasms
Chemicals
Benz(a)Anthracenes
9,10-Dimethyl-1,2-benzanthracene
Croton Oil
benz(a)anthracene
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
FREI J V
References (27)
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