A text-book of the diseases of the ear and adjacent organs . Fig. 162.—Dilated Network of Lymphatic Vessels in the Deeper Layers ofthe Covering of the Promontory in a Phthisical Person, 27 Years Old,who had Otorrh<ea since Childhood. (Right Ear.) (Hartnack, Obj. 7.) 356 CHRONIC PURULENT INFLAMMATION OF THE MIDDLE EAR. chronk middle-ear suppuration in the deeper layers of the mucous membraneenlarged lymphatic vessels, as varicose projections with blind endings, thesterns of which form an anastomosing net {Fig. 162). Besides these one sees occasionally the cystoid spaces, as described by

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A text-book of the diseases of the ear and adjacent organs . Fig. 162.—Dilated Network of Lymphatic Vessels in the Deeper Layers ofthe Covering of the Promontory in a Phthisical Person, 27 Years Old,who had Otorrh<ea since Childhood. (Right Ear.) (Hartnack, Obj. 7.) 356 CHRONIC PURULENT INFLAMMATION OF THE MIDDLE EAR. chronk middle-ear suppuration in the deeper layers of the mucous membraneenlarged lymphatic vessels, as varicose projections with blind endings, thesterns of which form an anastomosing net {Fig. 162). Besides these one sees occasionally the cystoid spaces, as described by the mucous membrane, which appear as lymphatic spaces and are discon-nected with those lving in the deeper layers (Fig. 168), while the cysts whichoccur in the superficial granular layers are often lined with epithelium168, t c) and are formed by the growth of papillary excrescences whichBe the depressions between them. ./ 1. v. -^*^ .-••-.

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Keywords: ., bookcentury1800, bookdecade1890, booksubjecteardiseases, bookyear