The pathology and surgical treatment of tumors . wound an atheroma-cystwhich undoubtedly was causedby a dislocated particle of conclusion of the greatest eti-ological moment that can bedrawn from the experiments ofKaufmann and the clinical ob-servations of Garre and othersis this, that a dislocated fragment of skin docs not possess the sameintrinsic capacity of continued progressive tissue-proliferation as an epi-blastic tumor-matrix. Epithelial cysts of a similar origin are foundmore frequently in the scars following burns than after trauma. Epi-thelial pearls in , the prod
The pathology and surgical treatment of tumors . wound an atheroma-cystwhich undoubtedly was causedby a dislocated particle of conclusion of the greatest eti-ological moment that can bedrawn from the experiments ofKaufmann and the clinical ob-servations of Garre and othersis this, that a dislocated fragment of skin docs not possess the sameintrinsic capacity of continued progressive tissue-proliferation as an epi-blastic tumor-matrix. Epithelial cysts of a similar origin are foundmore frequently in the scars following burns than after trauma. Epi-thelial pearls in , the product of buried epithelial cells, arenot of rare occurrence. Traumatic epithelial cysts must be removedby thorough extirpation, otherwise a recurrence will almost surely takeplace. Deep-seated Atheroma.—A rctcntion-cyst of the sebaceous glandsresembles a true atheroma so perfectly in the structure of the cyst-wall Fig. 95.—Beginning of healing of the skin-defectand commencing proliferation from the margins of theimplanted skin (after Garre).. Fig. 96.—Wound entirely healed, and the buriedskin-graft enlarged by proliferation from the surfaceand margins of the graft (after Garre). CYSTOMA. 185 and in its contents that we must distinguish between them etiologicallyand clinically according to their location. Retention-cysts of the seba-ceous glands result from obstruction to the escape of the secretions,and always retain their relations with the skin. They are superficial,being covered only by the skin. The deep-seated atJuToma has no con-nection zvith the glandular apparatus of the skin, and it ahvays originatesfrom a displaced matrix of embryonic epiblastic cells. It should be dis-tinguished from a dermoid cyst by the character of its contents. Anatheroma contains only epithelial cells as its characteristic morphologi-cal cellular element, while the cyst-wall of a dermoid cyst representsskin with its appendages in the simplest cases, and in more complicatedcases systems of or
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectneoplas, bookyear1895
