Phlebitis and thrombosis; the Hunterian lectures delivered before the Royal college of surgeons of England in March, 1906 . sary. In obliterating arteritis the obstruction of the vessel,though partly due to the arterial sclerosis, is also (as hasbeen shown by Zoege-Manteuffel) ^ largely produced bythe deposition and organization of blood-clot. No doubtthis condition is frequently due to syphilis, but it alsooccurs in the course of other infective diseases, as thespecific fevers, rheumatism, influenza, and instances are also recorded of arterial thrombosis inconnection with phthi
Phlebitis and thrombosis; the Hunterian lectures delivered before the Royal college of surgeons of England in March, 1906 . sary. In obliterating arteritis the obstruction of the vessel,though partly due to the arterial sclerosis, is also (as hasbeen shown by Zoege-Manteuffel) ^ largely produced bythe deposition and organization of blood-clot. No doubtthis condition is frequently due to syphilis, but it alsooccurs in the course of other infective diseases, as thespecific fevers, rheumatism, influenza, and instances are also recorded of arterial thrombosis inconnection with phthisis, and Professor Welch ^ describesa specimen showing a tubercular focus in the intima ofthe aorta, on which a thrombus has formed containingtubercle bacilli. Besides these changes in the arterial wall, certain con-ditions of the blood, in combination with a slow andfeeble circulation, will lead to coagulation in the arteries ;as is seen in chlorosis, anaemia, and towards the end of ^ W. Zoege-Manteuffel : Deut. Zeit. f. Chir., 1898, vol. xlvii.,p. Allbutts System of Medicine, vol. vi., p. 196, 1899. ^,=**S»*^. FIG. 3.—SECTION OF BRANCH OF FEMORAL ARTERY FROM A WOMAN, AGED TWENTY-THREE YEARS, WHO DIED FROM EXTENSIVE THROMBOSIS OF THE PULMONARY ARTERY: THE ARTERY FULL OF CLOT; COATS NATURAL. [ To face />. 17. Phlebitis and Thrombosis 17 exhausting diseases, but this is much less common in thearteries than in the veins. Such a condition is illustrated by a specimen in themuseum of St. Georges Hospital (Series VI., 6id), takenfrom the body of a woman aged thirty-seven years, whodied from gangrene of the lower limbs. The specimenshows part of the aorta and the iliac arteries filled withold coagula adherent to the internal coat of the artery, butthe coats of the vessel are not thickened (Fig. 2). Thegeneral tendency to thrombosis is shown by the fact thatsimilar coagula were found in the main arterial trunks andin the veins of both lower limbs, in the iliac veins and lo
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