[Periarteritis nodosa and carcinoma of the colon. A case report (author's transl)]. / Périartérite noueuse et cancer du côlon. Une nouvelle observation.

It is extremely rare to observe the simultaneous progression of periarteritis nodosa (PAN) and cancer. A patient was found to have histologically confirmed PAN shortly after excision of an adenocarcinoma of the descending colon. High levels of carcino-embryonic and then HbS antigens were discovered in the serum. A favorable medium-term result was obtained after corticoids and multiple cytotoxic chemotherapy. If one accepts that the typical vascular lesions of PAN are due to an antigen-antibody conflict producing circulating immune complexes, it is reasonable to suggest the hypothesis that many antigens could be involved in the production of immune complexes of this type. Many authors accept that HbS antigen is implicated, certain tumoral antigens may also play an analagous role.

[Revascularisation of the arteries of the digestive tract by retrosternal bypass from the left subclavian artery (author's transl)]. / Revascularisation des artères digestives par pontage rétro-sternal à partir de l'artère sous-clavière gauche.

This technique of revascularisation of the digestive arteries is suggested when the infrarenal aorta cannot be used. The hepatic artery is reimplanted in the coeliac region. The vein graft is passed in the root of the transverse mesocolon and anastomosed with the superior mesenteric artery. The subclavian artery, frequently used in the revascularisation of the neck vessels, was felt to be preferable to the axillary artery. Passage of the graft retrosternally avoids any kinking or compression in the abdominal wall. The patient's own saphenous vein is the most suitable material. If this is not possible, a varicosity preserved by cold was felt to be preferable to a dacron tube.