This paper investigates a framework for Secure Retrieval and Dissemination of Information (text and image) in Distributed and Wireless Environments (SECRET_DIDWE). Our research focuses on the evaluation and integration of Information Retrieval techniques. Text Retrieval and Content-Based Image Retrieval techniques are mainly studied for use in medical environment. The framework is based on a wireless architecture to enable authorized medical personnel to access medical records in a secure and transparent manner, utilizing an agent-based architecture. A policy-based architecture is part of the framework for utilizing wireless sensor devices, advanced network topologies and software agents to enable remote monitoring of patients and elderly people. These technologies can be used to achieve continuous monitoring of a patient’s condition. Medical information classification based on neural network techniques of SVM (Support Vector Machines) type for supporting diagnosis is also incorporated into the framework.