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Biomedical subjects

A Bouchet

Publications and source records attributed to A Bouchet.

95 records · Page 6Linked to original sources
PubMedDate not supplied

[Prognosis of the thyroid carcinomas after surgery (author's transl)].

The authors review 140 cases and show the prime importance of the patient's age and the histological type in the prognosis of the operations of thyroid carcinoma (with the exception of solitary malignant cold nodule). The survival rate is higher with the papillary carcinoma of young patients, even though an extensive development of lymph nodes occurs, whereas metastases are encountered in the evolution of follicular carcinoma with increased risks. The anaplastic carcinoma which occurs mainly in aged people, is the worst of all. The medullary carcinoma is quite different from the others and is almost as malignant as the differentiated and anaplastic carcinomas. Surgery has to be adapted to anatomical lesions and requires the presence of an experienced histopathologist, the extension of the gland excision depending on the histological type and whether the isthmic area has been touched or not; in the same way a microscopic examination of lymph nodes, which are systematically excised, reveals whether a lymph nodes dissection has to be done at the same time. In this way extensive excisions together with their sequels can be avoided when the best prognosis can be forecasted with these lesions.

Adenocarcinoma↗
PubMedDate not supplied

[Anatomy of the anal canal].

The anal canal marks the transition from the end of the alimentary canal to the exterior. Its prime function is to maintain continence by means of the internal sphincter. 1) Level with the mucous membrane, the pectineal line contains the anal valves, which form the limits of a supravalvular area glossy red in colour and a blue-grey subvalvular area in which is sited the linea alba of Hilton. 2) The sphincteral apparatus includes the internal sphincter which contracts automatically and which ensures tight continence, the longitudinal muscular stratum joining the ampulla of the rectum, and the pubo-rectal tract or levator ani, drawing the head of the rectum forwards. 3) The canal is surrounded by cellular perianal tissues, and, phlebologically speaking, is vascularised by a system which joins the portal current; the position of this system explains the topography of hemorrhoids.

Anal Canal↗
PubMedDate not supplied

[Route of approach of distal deep femoral artery].

Proximal implantation of by-passes between the femoral and popliteal or femoral and leg arteries, may be carried out on the middle portion of the profunda femoris artery, between the first and second perforating arteries. An approach some distance from Scarpa's triangle, permits one to reach fairly easily, within a muscular triangle between the vastus medialis and the adductor longus. Two cases illustrate the interest of this route of approach described in Lyons for the first time in 1970.

Aged↗