Manual of pathological anatomy . Miliary tubercle of the omentura andchang-es in surrounding parts. a. Tubercle completely formed, b. Clusterof small cells forming* an incipient tubercle^mass of adenoid tissue, Sanderson). iLProliferation of serous epithelium. (From an original preparation.) See* Tmns. Path. Soc, xxi. 198, pi. V. 196 TUBERCLE. resembling very minute lymphatic glands, which he has been thefirst to observe in many organs.* Caseous Material or Yellow Tubercle,—The substance which hasbeen called yellow tubercle forms masses of varying size, but Fro. 47. W^. 0. Caseous material or
Manual of pathological anatomy . Miliary tubercle of the omentura andchang-es in surrounding parts. a. Tubercle completely formed, b. Clusterof small cells forming* an incipient tubercle^mass of adenoid tissue, Sanderson). iLProliferation of serous epithelium. (From an original preparation.) See* Tmns. Path. Soc, xxi. 198, pi. V. 196 TUBERCLE. resembling very minute lymphatic glands, which he has been thefirst to observe in many organs.* Caseous Material or Yellow Tubercle,—The substance which hasbeen called yellow tubercle forms masses of varying size, but Fro. 47. W^. 0. Caseous material or * yellow tubercle. generally larger than grey tubercle, equalling perhaps a hemp-seed, or a pea, in magnitude; but masses much larger than thisoccur in the brain, and in lymphatic glands. So little uniformityis there in the size or mode of growth of these masses that it seemsmore natural to speak of yellow tubercle as a substance, that is, astuberculosis matter, than of a yellow tubercle or tubercles. Thisyellow substance has also been called scrofulous matter, andsince both these names may give rise to misunderstanding, somewriters prefer to speak of it simply as cheesy matter. Whateverview be taken of the origin of the two forms of so-calledtubercle, there is an obvious convenience in denoting them bydifferent names; and it therefore seems more convenient toreserve the name tubercle for the grey form, and to call the yellowcheesy masses simply caseous material. It is an opaque substanceof a whitish-yellow colour, and of rather brittle consistence. Mi-croscopical
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