[Perioperative cholangiography: a case study at Yaounde (Cameroon)].

For many years peroperative cholangiography has been routinely used for bile duct surgery in the Western countries. However recent publications showing high rate of inconclusive peroperative cholangiography (47%) has cast doubt on this attitude. Surgeons in Africa and particularly in Cameroon have already replaced peroperative cholangiography with other indicators such as clinical history and preoperative echography, anticipating cholangitis.

Incidence and distribution of scaphotrapezotrapezoidal arthritis in 73 fresh cadaveric wrists.

The STT joint was examined in 73 fresh cadaveric specimens (25 male and 48 female with an average age of 84 years) with a view to study the incidence and characteristics of degenerative changes in this joint. The articular degeneration was graded from 0 to 3 according to increasing loss of cartilage and the location of the changes was noted. At the same time, the presence and extent of concomitant trapezio-metacarpal arthritis was noted.

Surgical correction of pseudo-ainhum in Vohwinkel syndrome.

Vohwinkel syndrome or hereditary mutilating keratodermatitis is a rare condition producing palmoplantar hyperkeratosis and constricting rings of the fingers and toes which can progress to compromise neurovascular function and mobility. Medical treatment with oral retinol derivatives is recommended when its use is not contra-indicated. This paper describes surgical correction of the constricting rings on both hands in a 33-year-old woman affected by this condition.

[Renal cysts at Yaounde (Cameroon). Prevalence and echographic profile].

Few studies have addressed the prevalence of renal cyst in African countries south of the Sahara, although this condition is highly prevalent in other parts of the world. To determine the prevalence and the clinical and sonographic features of renal cysts in a population of black africans, we reviewed 1,527 consecutive sonograms performed at the Yaoundé Teaching Hospital in Cameroon in patients aged 0 to 82 years. We found 47 patients harbouring at least one renal cyst (prevalence 3.