Sclerosing stromal tumours are rare benign ovarian neoplasms of the sex cord stromal that occur predominantly in the second and third decades of life. Herein, we report two cases of sclerosing stromal tumour of the ovary. The two patients were 16 and 45 years old and both presented with pelvic pain. Ultrasonography demonstrated a heterogeneous solid mass of the left and right ovary, respectively, with some cystic foci in the second tumour. Laboratory tests including tumour markers and serum hormonal assays were normal in both cases. The two patients underwent left and right salpingo-oophrectomy, respectively. Microscopically, the tumours showed a pseudolobular pattern with cellular areas separated by oedematous and collagenous areas. The cellular areas were richly vascularized, with a hemangiopericytic pattern, and were composed of an admixture of theca-like and spindle-shaped cells. Immunohistochemical studies showed that the tumour cells were positive for smooth muscle actin, inhibin and vimentin, but negative for cytokeratin. The final pathological diagnosis was sclerosing stromal tumour. Postoperative course was uneventful for both patients.

Les infections de site opératoire sont des infections nosocomiales survenant suite à une intervention chirurgicale. Les principaux facteurs de risques impliqués sont l'environnement pré-, per- et postopératoire du malade ainsi que de l'équipe soignante, les défenses immunitaires de l'hôte et surtout le niveau de propreté de l'acte chirurgical. Afin de diminuer l'incidence de cette pathologie, il est nécessaire d'en améliorer la détection et la surveillance, d'optimiser les mesures et protocoles d'hygiène au bloc opératoire ou en salle d'hospitalisation, et enfin d'adapter les traitements prophylactiques au niveau de risque correspondant. Tout ceci nécessite une prise en charge pluridisciplinaire, une information éclairée des patients sur ce risque, et une implication consciencieuse de l'ensemble des acteurs de soins.Surgical site infections are nosocomial infections occurring after surgery. The main risk factors involved are the pre-, per- and postoperative environment surrounding the patient and the healthcare team, the host's immune defences and especially the degree of hygiene during the surgical act. In order to reduce the incidence of this pathology, there is a need for improving its detection and monitoring, optimising hygiene measures and protocols in the operating theatre or the hospital room and, lastly, adapting preventive treatments to the corresponding level of risk. All this requires multidisciplinary care, patient information concerning this risk, and conscientious involvement by all healthcare stakeholders.