Pseudocyst formation is a rare complication of ventriculo-peritoneal shunt, occurring in only 22 cases of 1300 shunts from 1968 to 1992. The most common presentation is that of abdominal signs rather than neurological or infectious signs. The diagnosis is easy with ultrasonography. The difficulty is to evocate the cyst and to correlate symptoms and cyst. Treatment of the cyst was by aspiration (21 cases) and excision in 7 cases. The therapeutic choice is made according to the ultrasound findings. When the cyst was infected, an external ventricular shunt was used temporary, but this type of shunt must be avoided where possible. Three patients died.

Postoperative anastomotic bleeding is not so uncommon after left colectomy. This complication should be particularly dreaded in patients who underwent stapled colorectal anastomosis for diverticular disease. With the use of clip or mucosal sclerosis, early endoscopy is a safe and efficient treatment.

The authors report the use of Ethibloc in the treatment of cystic lymphangiomas and venous angiomas in 19 children. This embolizing product is injected by puncture in situ.Ten cystic Iymphangiomas were treated, incJuding 7 of the cef\'ico-facial region. Of these ten, 8 were embolized initially using Ethibloc, and 2 after surgery. The diagnosis \\'as al\\'ays confirmed by echography and in some cases also by scanner. Six were completely cured and 2 had partial but satisfactory results requiring further injections. The final 2 cases when Ethibloc was administered after surgery, gave very disappointing results as the residual lesion was microcystic and thus difficult to access for the Ethibloc injection.The 9 venous angiomas involved various regions, incJuding 5 facialIesions. These angiomas required a more extensive blood-cJotting and radiologic assessment: standard radiography to detect the c1ot, Doppler echography and M.R.I. precisely c1arifying the exact extension in depth.For 6 patients the cure was complete, for 2 others the resulls were good. Finally, in 1 case Et.h:ibloc embolization was carried out prior to surgery, allowing definitive cure.In all, this technique resulted in a complete cure in 213 of the cases and its simplicity makes it a seemingly interesting alternative to surgery.

MS does not jeopardize postoperative outcomes following laparoscopic colectomy.

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