

PURPURACEOUS 



1219 



PUSTULA NT 



purpura associated with the menstrual period. P. 

 miliaris. Synonym of Miliaria. P. nautica. 

 Svnonvm of Scurvy. P. neonatorum, that occur- 

 i'nf in the newborn from sudden changes in the cir- 

 ulation. P. neurotica, purpura due to a nervous dis- 

 ■ase. P. papulosa, the variety in which the effusion 

 - round a hair-follicle and papules are formed. P. 

 Pestilential. Synonym of Fever, Cerebrospinal. P. 

 :uerperalis, P. puerperarum, a purpuric eruption 

 •ccurring during the puerperium, and probably due 

 id septicemia. P. pulicosa, petechial spots pro- 

 duced by flea-bites. P. rheumatica. See Peliosis 

 hettmalica. P. scorbutica. Synonym of Scurry. 

 ■'. senilis, that occurring in old age from want of 

 lpport to the vessels due to relaxation of the tissues. 

 '. simplex, the mildest degree of purpura. It 

 Mierally occurs suddenly in young persons who are 

 iparently healthy. Small, flat, roundish, or irregu- 

 rly-shaped petechias appear, of a deep-red color, 

 Inch does not disappear on pressure and soon he- 

 mes purplish, the lesions usually remaining dis- 

 ete. There are no concomitant constitutional, or sub- 

 ctive symptoms. In children the spots are com- 

 onest about the upper part of the trunk, neck, and 

 ms ; in adults, about the inner surface of the thighs. 

 . syphilitica, purpura due to syphilis ; it may be 

 calized, as in the area of distribution of a certain 

 •rve, or it may be general. P. thrombotica, pur- 

 lra due to thrombosis of the veins. See Erythema 

 vpuricum. P. traumatica, purpuric spots due to 

 lumati^m. P. tuberculosa, P. hypertrophica ; a 

 re form associated with the formation of tubercles 

 nodules upon the skin, and edema of the affected 

 irt. Death follows from gradual exhaustion. P. 

 rticans. See Urticaria hemorrhagica. P. vario- 

 sa. See Small-pox, Hemorrhagic. P., Vascular, 

 irpura due to changes in the character of the blood 

 changes in the vessel walls. 

 P-puraceous ( pur-pu-ra' -se-us) [purpura, purple]. 



(f a purple color. 

 Pipurate (pur'-pu-rat) [purpura, purple]. Of a 



rple color. 

 P'nuremia (pur-pu-re' -me-ah) [purpureus, purple; 

 i a, blood]. Intermittent malarial fever with hema- 

 ia. 

 D i urescent (pur- pu- res'- ent) [purpura, purple]. 



lish. 

 Mruric (pur-pu'-rik) [purpura, purple]. Purplish, 

 taining to, or of the nature of purpura. P. Acid. 



ft urigenous (pur-pu-rij'-en-us) [purpura, purple ; 

 ere, to bear] . Producing purple. 

 urin i pur' ' -pu-rhi) [purpura, purple], C M H 8 O v 

 A dye present with alizarin in the madder-root. It 

 repared artificially by heating alizarin and quinizarin 

 h manganese dioxid and H. 2 S0 4 to 150 C. It 

 stallizes with one molecule of water in reddish- 

 ow needles or prisms, and dissolves with a pure- 

 color in hot water, alcohol, ether, and the alkalies. 

 Uroerythrin ; a red coloring-matter sometimes 

 ~ent in urinary deposits. It may attend serious 

 3ns, but is often of no special significance. See 



. Conspectus of. 

 ariparous ( pur-pu-rip' '-ar-us) . Same as Purpurig- 



lroxanthic Acid ( pur-pu-ro-zan' -thih)[ purpura , 

 : wfioc, yellow], C I5 H 8 H 6 . A substance found 

 ladder. 



e (pttr'-a) [E. Ind.]. See Euxanthinic Acid, and 

 . Conspectus of. 

 Acid, Purrheic Acid (pur-e'-ik). See Euxan- 





II 



Purring Thrill. A fine, trembling vibration in the pre- 

 cordium, either heard or perceived by palpation. It 

 may be due to aneurysm, or to some valvular heart- 

 lesion, especially mitral stenosis. 



Purse-string Operation. See Stoltz's Operation in 

 Operations, Table of. 



Pursy (pur'-se) [ME., pursy, short-winded]. Fat, or 

 corpulent, and short of breath. [Popular.] 



Purulence (pur'-u-lens) [pus, pus]. The quality of 

 being purulent ; suppuration. 



Purulent ( pur'- u - lent) [pus, pus]. Having the 

 character of or forming pus. P. Catarrh, an inflam- 

 mation of a mucous membrane accompanied by the 

 production of pus. P. Edema, a general infiltra- 

 tion of pus with much fluid. 



Puruloid (pur'-u-loid) [pus, pus; e/d<3c, like]. Re- 

 sembling pus ; puriform. 



Pus [— i-oi-]. A fluid of varying consistence produced 

 in the process of suppuration. It is formed by a lique- 

 factive necrosis of the intercellular substance of tissues, 

 the cells themselves floating in the fluid and under- 

 going fatty degeneration. Clinically, pus is due to 

 the action of microorganisms. P., Blue, pus colored 

 blue by the bacillus pyocyaneus. P. -corpuscles, the 

 corpuscles found in pus ; they are small, usually multi- 

 nuclear cells, chiefly outwandered leukocytes, but also 

 degenerate connective-tissue cells. The nuclei may be 

 hidden by granules, but can be made to appear by- 

 adding a little acetic acid to the pus. P., Curdy, 

 containing cheesy-looking flakes. P. -disease. Syn- 

 onym of Pyemia. P., Healthy. See P. , Laudable. 

 P., Ichorous, pus when thin and acrid. P., Laud- 

 able, a whitish, inodorous pus, formerly thought to be 

 essential to the healing of wounds. P., Muco-, pus 

 mixed with mucus. P. -poison, a chemic compound 

 that gives rise in the tissues to purulent inflammation. 

 The proteid extracts of many bacteria act thus, e. g., 

 tuberculin. P., Sanious, pus mixed with blood. P. 

 Sero-, pus largely admixed with serum. P. -tube, 

 a term frequently applied to a Fallopian tube the 

 seat of suppurative inflammation. See Pyosalpinx. 

 P., Watery. Synonym of P., Ichorous. For 

 microorganisms of pus see Bacteria, Synonymatic 

 Table of. 



Pustula (pus'-tu-lah) [L.]. A pustule. A vesicle or 

 bleb containing pus. P. maligna, Anthrax ; Char- 

 bon ; Alalignant Pustule ; Woolsorters 1 Disease ; Splenic 

 Fever ; Carbuncle, Alikbrand ; an acute specific dis- 

 ease, due to the introduction of the bacillus anthracis 

 into the system. It is characterized by the appear- 

 ance of a localized inflammation beginning as a vesicle, 

 and is situated on the face, neck, hands or arms, closely 

 resembling carbuncle. The tumefaction may be very 

 great, and this is associated with a profound degree of 

 depression and exhaustion, the patient often dying on the 

 fourth or fifth day. In favorable cases recovery takes 

 place. The fever is slight; in fact, there is often a 

 subnormal temperature. In some cases general in- 

 fection does not occur. Internal Anthrax, mycosis 

 intestinalis, anthrax intestinalis, may be secondary to 

 infection of the skin, but in some cases no primary 

 focus can be discovered. The symptoms are diarrhea, 

 vomiting, dyspnea, and a tendency to collapse. The 

 temperature is usually not elevated, often subnormal. 

 Death occurs in profound collapse in a very few days. 

 The lesions consist of necrotic foci in the intestines ; 

 bacilli are abundant in the vessels of these areas. The 

 spleen is not much enlarged, but the lymphatic glands 

 are greatly tumefied. See Pustule. 



Pustulant (pus'-tu-lant) [pustula, a pustule]. I. 

 Causing the formation of pustules. 2. An irritant 

 substance which does not affect the whole skin 



