[Perineal gangrene secondary to abscesses of the anal margin. Apropos of 9 cases].

Of 9 patients with perineal gangrene secondary to abscess of anal margin, 7 presented deficiency states. Diagnosis was established after an average of 7.4 days following onset of signs, although the clinical picture was obvious and the lesions extended beyond the perineum towards the genital organs, buttocks or thigh.

[Agenesis of the gallbladder. Comments on physiopathology and diagnosis. Apropos of 2 cases].

Initially a simple anatomical curiosity discovered at operation or autopsy, agenesis of the ball bladder has now, and despite its rarity, become of the greatest interest from a pathogenic, physiopathological and diagnostic standpoint. Embryogenesis explains that this a developmental abnormality affecting the hepatic diverticulum which is probably of genetic origin, hence its frequent association with other malformations and the hereditary nature of the condition. The usual finding of a syndrome of blockage of the sphincter of Oddi with dilatation of the common bile duct raises the problem of synergism between the sphincter of Oddi and the gall bladder.

[Dacron tulle prosthesis and biological glue in the surgical treatment of incisional hernias (author's transl)].

In repair of incisional hernias the authors use Dacron tulle material for less than peritoneal sac reinforcement prosthesis greater than (PSRP)--a method which prevents recurrences whether or not the abdominal wall is badly damaged. A biological glue (n-butyl-cyanoacrylate monomer) in many cases avoids direct or indirect suture of the patch). In practice, there are two types of PSRP.

[Circular mechanical colorectal anastomoses (author's transl)].

When they are terminoterminal, circular lower colorectal mechanical anastomoses involve certain risks due to the incongruence of the intestinal ends, to the difficulties encountered in reconstructing the rectal pouch and to ischaemia resulting from stripping of the rectal section. Terminolateral anastomoses between the colon and the anterior surface of the rectal stump are easier and safer.

[Very long duration anaesthesia (V. L. D. A.) considered by the surgeon (author's transl)].

In the experience of the Universitary Surgical Clinic of Amiens, anaesthesia of more than 8 hours duration appears for 3 p. thousand of the total amount (9/3 000 on 1978). The authors distinguish between them "provided" very long duration operations and the "involuntary" ones (complex multitrauma, unexpected difficulties, etc.