Digital pathology is the computer technology that allows the management of the information generated by the whole-slide scanners from a microscopic slide, encompassing the virtual microscopy. This paper proposes and describes the architecture of a secure collaborative platform that integrates a web pathology viewer with role-based access control. The proposed architecture is ensured by a shared medical repository that serves web pathology viewer with the medical images, using the DICOM standard. The system offers collaborative work session management tools as the managing of users, sessions, access control to sessions, and many others. Furthermore, the use cases related to telepathology and e-learning are presented.