Archives of internal medicine . plasia of the rete, which extends downward deeply into the corium andpapillse, dividing it into elongated chambers. Here and there the stratum cor-neum is carried downward with the rete and is pinched off into cell nests. The .S. T. DANLIXa 583 corium and papilliB are uniformly and richly infiltrated with newly formed cellsof the lymphoid and plasma type; there are numerous proliferated endothelialand epithelioid cells and several giant cells also. The endothelium of the capil-laries, particularly that of the papillae, is swollen and proliferated. There areno ar
Archives of internal medicine . plasia of the rete, which extends downward deeply into the corium andpapillse, dividing it into elongated chambers. Here and there the stratum cor-neum is carried downward with the rete and is pinched off into cell nests. The .S. T. DANLIXa 583 corium and papilliB are uniformly and richly infiltrated with newly formed cellsof the lymphoid and plasma type; there are numerous proliferated endothelialand epithelioid cells and several giant cells also. The endothelium of the capil-laries, particularly that of the papillae, is swollen and proliferated. There areno areas of necrosis. With the highest powers a few microorganisms {) are seen in groups of from one to a dozen individuals imbedded in thecytoplasm or placed alongside the nucleus of an endothelial, epithelioid or othercell. In the deeper portions of the skin the cellvilar proliferation is limited toperivascular collections of small, round cells of the lymphoid type, surroundingblood and lymphatic vessels and Fig. 2.—L. tropica in a large endothelial cell with oblong nucleus. Oriental sore is an ulcerating- skin granuloma caused by a protozoon,Leishmania tropica, or by allied forms. The lesion lias been given various names, of which the following areamong the commonest; Lahore, Multan and Delhi sore; Oriental sore; 2. Xon-ulcerating types have been described by R. M. Carter (Oriental Soreof Northern India, A Protozoal Infection, Brit. Med. Jour., 1909, ii, 647); byD. B. Thompson and A. Balfour (Two Cases of Non-Ulcerating Oriental Sore,Better Termed, Leishman Nodules, Tr. Soc. Trop. Med. and London, 1910,iii, 107) and by Cambillet (Un cas de Bouton dOrient a Flatters [Alger], Path. Exot., Paris, July 21, 1909). 584 THE AliCtnVEs OF 1\TER.\.\L UEDJCIXE Delhi boil; Aleppo boil; Biskra l)oil; Gafsa boil: plan bois: iilceras deBaurii; mycosis cutis chronica: luims endemicus; oranuloma terms, no doubt, would hv those expressint
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