Epidemiologie et anatomo-pathologie des cancers colorectaux en Cote d'Ivoire

Consideres comme rares dans les pays en developpement; les cancers colorectaux sont de plus en plus frequents avec l'occidentalisation des habitudes alimentaires. Notre objectif a ete de decrire le profil epidemiologique et anatomopathologique de ces cancers dans deux CHU d'Abidjan en Cote d'Ivoire. Il s'agissait d'une etude retrospective realisee dans les laboratoires d'Anatomie pathologique de deux trois CHU d'Abidjan sur les cancers colorectaux histologiquement confirmes. La periode d'etude a ete de 24 ans (1984-2007). La frequence relative trouvee a ete de 3;34(394/11854) des cancers avec une predominance masculine (64). L'age moyen etait de 49 ans avec des extremes de 6 et 84 ans. Les polypes et les polyposes etaient les plus frequents des facteurs predisposants (41;66). L'ampoule rectale etait la zone la plus touchee (57; 82u). Les aspects vegetants; les adenocarcinomes et le stade pT2-T3 N1M0 ont constitues les aspects anatomopathologiques predominants. Ces cancers touchent ainsi des sujets jeunes avec pronostic souvent pejoratif

[The uteropelvic junction in children: from the clinical problems to the morphogenetic approach]. / La jonction pyélourétérale chez l'enfant: de la problématique clinique à l'approche morphogénique.

The responsibility of the uteropelvic junction (UPJ) syndrome or abnormalities for renal affections and also for high obstructive uropathy is well-known. But, controversies still remain about the anatomic approach of this clinical feature. Our purpose is to elucidate the developmental anatomy of UPJ and eventually to set the steps of the anatomic approach of the UPJ abnormalities. This study also leads to a better understanding of the mechanism of the intrinsic ureteropelvic junction obstructions. A total number of 122 post-mortem specimens with ages ranging from 1 day to 30 months in both sexes underwent formalin treatment for histological investigation. We performed both transverse and longitudinal sections. Hematein-eosin-safran and Masson's trichrome staining were used. Histological examination revealed that myoarchitecture of UPJ set increasingly up. Circular muscle fibers were first to put in. They had an initial arrangement as a ring in neonates and infants. We conclude that circular layer appears first and sooner than others. On the other hand, coincidence in time between ages of our specimens and ages of patients sufferning from UPJ syndrome leads to further investigations to determine the implication of ring-shaped circular layer in intrinsic ureteropelvic junction obstruction.

[Clinical, endoscopic and histologic aspects of chronic Helicobacter pylori gastritis in Côte d'Ivoire: study of 102 patients]. / Aspects cliniques, endoscopiques et histologiques des gastrites chroniques à Helicobacter pylori en Côte d'Ivoire: étude de 102 patients.

BACKGROUND: Helicobacter pylori (H. pylori) is the most frequent aetiological factor of chronic gastritis (CG). The relationship between H. pylori gastritis, gastro-duodenal ulcer and some gastric cancers (adenocarcinoma, gastric MALT lymphoma) has now been proven. AIM: Describe clinical, endoscopical and histological aspects of H. pylori gastritis in Côte d'Ivoire. METHODS: Retrospective analysis of 1960 gastroscopy reports carry out between January 1994 and December 1995. Analysis of clinical and gastric histological results in 137 patients. FINDINGS: Among 137 patients with gastric biopsy, 102 had H. pylori gastritis (68 men, 38 women, mean age: 39.3 years) and 35 had chemical gastritis. Epigastric pain was the most frequent symptom. The mucosa was frequently erythematous or exsudative at endoscopy. Histological anomalies were located in the antrum, the fundus or generalised, respectively in 33.3%, 25.5% and 41.2% of cases. Mild atrophic CG was more frequent in various locations. Gastritis activity was present in 81.4%, intestinal metaplasia in 18.6% and follicular lymphoid hyperplasia in 36.3% of cases. CONCLUSION: Clinical and endoscopical aspects of H. pylori gastritis did not present any particularities. Fundic gastritis without antral localisation was not unusual. This situation could be the result of antibiotic and gastric acid secretion inhibitor treatments.

[Malignant melanoma in the Ivory Coast. Epidemiologic and histo-prognostic aspects. Report of 195 cases]. / Mélanomes malins en Côte-d'Ivoire aspects épidémiologiques et histopronostiques. A propos de 195 cas.

Malignant melanomas (MM) are rare tumors of very bad prognosis. Few studies have precised the anatomopathological aspects and prognosis of these tumors in Africa and especially in Côte d'Ivoire. This has prompted us to review 195 cases of MM diagnosed in our laboratories in order to precise their epidemiological and anatomical features. Biopsies and/or surgical specimens fixed in 10% buffered formalin have been studied using the paraffin embedding methods and staining with hematoxylin and eosin, Masson's trichrome and Fontana. 117 men (60%) and 78 women (40%) with a medium age of 57 years were studied. Cutaneous MM were predominant (174 cases, 93%) with 57.8% located on the foot. Non classified (38.2%) and nodular (33.6%) forms were more frequent with only 19% of acral lentiginous melanomas. The prognosis of our cases was poor with 71% of levels IV or V according to Clark and Mihm, Breslow's thickness superior to 3 mm in 93% of cases and ulceration in 91.3%. Our study emphasizes the poor prognosis of MM in Côte d'Ivoire. These tumors are frequent in the elderly and located predominantly on the foot.

[Thoughts apropos of a case of adenomyoepithelioma of the breast]. / Réflexions à propos d'un cas d'adénomyoépithéliome du sein.

We have observed one case of adenomyoepithelioma of the breast in a 65-years-old woman. Mammography was suspicious of malignancy. Morphological features were characteristic of this tumor. The origin of tumor cells was defined by immunohistochemical study using keratin and actin. The follow-up is not sufficient to predict the prognosis of our case.

[Clinico-pathologic aspects of rhinosporidiosis in the Ivory Coast. Report of 9 cases observed over 18 years]. / Aspects anatomo-cliniques de la rhinosporidiose en Cote d'Ivoire. A propos de 9 cas observés en 18 ans.

The authors report 9 cases of rhinosporidiosis observed in Côte d'Ivoire. Young subjects are generally concerned with E.N.T. and eye manifestations. There is a male preponderance. Pathological aspects are classical. Surgery has been the only treatment with good results.

[Chronic gastritis and Helicobacter pylori infection on the Ivory Coast. A series of 277 symptomatic patients]. / Gastrite chronique et infection à Helicobacter pylori en Côte-d'Ivoire. Etude d'une série de 277 patients symptomatiques.

Only a few reports have established the importance of chronic gastritis and Helicobacter pylori infection in Africa. The aim of this study was to ascertain the prevalence of chronic gastritis and Helicobacter pylori infection in a symptomatic population in Abidjan, Côte-d'Ivoire. The study included 277 consecutive patients referred for gastroscopy. Two hundred nine patients complained of abdominal pain without gastroduodenal ulcer or cancer: 26 had a duodenal ulcer, 23 had a gastric ulcer, and 6 had gastric cancer. The remaining 14 patients underwent gastroscopy for various other reasons. Chronic gastritis was present in 89 percent of cases, of which 96 percent showed signs of activity. There were four cases of lymphocytic gastritis. Patients with antral chronic gastritis were older (39.43 +/- 14.3 years) than those with normal antral mucosa (33.7 +/- 12 years, P less than 0.05). Helicobacter pylori was present in 91.3 percent of cases, representing all patients with active chronic gastritis, and 60 percent of the patients with normal gastric mucosa. Chronic gastritis was present in 86 percent of patients with abdominal pain, in 100 percent of those with duodenal of gastric ulcer, and Helicobacter pylori were observed in 90, 100, and 91 percent of the same patient groups, respectively. This study demonstrates the high prevalence of chronic gastritis and the very high level of Helicobacter pylori infection in Ivorian patients complaining of various gastrointestinal symptoms. The usefulness and feasibility of therapeutic trials still have to be investigated.