The British journal of dermatology . lveoli, and, according to Dubreuilh and Auche (^),these bodies are not present in basal-celled carcinoma. These authorsalso confirm the findings of Brooke (^) and Fordyce (^), showing thatthis hyaline degeneration is evident in the masses soon after theirorigin from the basal epithelium, but they erroneously describe asblood-vessels within the alveolar masses what are in reality earlycysts. With regard to the formation of the cysts, Brooke (^) says : Epithelial cells become large and translucent, the cells around them take ona like action, and a little focu


The British journal of dermatology . lveoli, and, according to Dubreuilh and Auche (^),these bodies are not present in basal-celled carcinoma. These authorsalso confirm the findings of Brooke (^) and Fordyce (^), showing thatthis hyaline degeneration is evident in the masses soon after theirorigin from the basal epithelium, but they erroneously describe asblood-vessels within the alveolar masses what are in reality earlycysts. With regard to the formation of the cysts, Brooke (^) says : Epithelial cells become large and translucent, the cells around them take ona like action, and a little focus of degenerated cells is thus produced. Owingapparently to the centrifugal and lateral pressure, the neighbouring cells assumea cubical shape and form a kind of wall round the central mass. The cells con-stituting the original focus increase in size, lose their clear contours, formtranslucent clumps in which the nucleus is very faintly stained, and later dis-appears. As the mass grows the cells at the periphery become more and more. a fe o m ^-^ 3 W 3 --- g J — a: =^ >-i -»^ O 3^ ^ 3 3 S § o =S^ 1- s S > O ^-^ o •^ <, O U) ® rx, LU ^ .i, Q * ^ i-i s o 1—1 r^ z 1—1 ^ LlJ o cS oS EPITHELIOMA ADENOIDES CYSTICUM. 391 flattened and condensed, nntil they at length consolidate into a solid cyst contents vary .- in some of the cavities tliey are completely colloid, in othersthey are composed of concentric layers of flattened horny cells round a colloidcentre; or again part of the contents may consist of a colloid mass and part ofhorny layers, but I have not found one cyst in which the whole of the contentswas made up of horny cells. [Fordyce differs on this point, and states thatsome of the cysts were entirely filled with horny cells.] The presence of colloidmatter seems to be an essential factor in the origin of the cysts, even if the lateradditions to its circumference undergo the more normal transformation intocorneous tissue. It is only when the colloi


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectsyphilis, bookyear188