File:The Journal of laboratory and clinical medicine (1915) (14780817795).jpg

Identifier: journaloflaborat01cent (find matches)
Title: The Journal of laboratory and clinical medicine
Year: 1915 (1910s)
Authors: Central Society for Clinical Research (U.S.)
Subjects: Biological Assay Diagnosis, Laboratory Disease Medicine Medicine Research
Publisher: St. Louis, C. V. Mosby
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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-geneous mass. W itliin fnc or six hours, as a rule, the sediment coagulates and 702 TJic Journal of Laboratory and Clinical Medicine takes on the appearance of the boiled white of an egg (Figs. F and G), aroundthe center of a noncoagulated mass. III. T. B. meningitis forms a pelUcle in from six to twelve hours eitherin tlie form of a white streak with small projections from the sides, or inadvanced cases, in the shape of a fine, triangulai--formed network, with thinreticuli, the apex of the sediment touching the surface of the fluid, and the basetouching the bottom (Fig. H). The structure is not firm and rough handlingwill break it or cause it to curl up at the bottom of the tube. The pellicle isalways snow-white in color, unless there is a mixture of blood in the tube, andis made up of fine reticuli. The rest of the fluid is clear, even if before the ap-pearance of the sediment it appeared to be slightly turbid. Often when a T. B. meningitis is mistaken for other forms of meningitis
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B A.B. c. D.E.F.G.H. C D E Pellicle Formation ix Meningitis. H Xormal. Meningococcic meningitis, fairly early. Meningococcic meningitis, advanced (sulphur-like granules). Meningococcic meningitis, iate in disease. Meningococcic meningitis, severe, on road to recovery. Pneumococcic meningitis, fatal. Pneumococcic meningitis, fatal. Tuberculous meningitis. and serum is administered the pellicle will still form if the fluid has been leftundisturbed. The pellicle formation is of diagnostic value in such cases, sincethe serum injection renders all chemical tests valueless. The pellicle formation is of great assistance diagnostically when the spinal Physical Characteristics of Spinal Fluid 703 iluid withdrawn is mixed with blood, and all other tests but the bacteriologicalare thereby rendered useless. The sediment appears in a short time directly-above the blood that has settled at the bottom, showing the same characteristicsas if no blood were present. I made an attempt to study the micros

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