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A new form of cellular arrangement in guinea‐pig ear epidermis
Author(s) -
BULLOUGH WILLIAM S.,
STOLZE JOHANNA U. R.
Publication year - 1978
Publication title -
british journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.304
H-Index - 179
eISSN - 1365-2133
pISSN - 0007-0963
DOI - 10.1111/j.1365-2133.1978.tb02019.x
Subject(s) - epidermis (zoology) , guinea pig , anatomy , stratum corneum , tile , stratum granulosum , hyperplasia , biology , pathology , materials science , medicine , composite material , genetics
SUMMARY A new type of squame arrangement is described in guinea‐pig ear epidermis. It is characterized by overlapping obliquely‐angled outer cells and squames, which thus form a roof‐tile pattern. This pattern develops in epidermis that is thicker than about 42 μm; in thinner epidermis the outer cells and squames form the usual columnar stacks. It is concluded that the roof‐tile pattern, which is usually directed towards the ear edge, is typical of slight to moderate hyperplasia. In extreme hyperplasia, when the strata granulosum and corneum are destroyed, only cellular disorder is seen.