What is the fine-grained topic of the following text: This medicinal product is for diagnostic use only.,Hexvix blue light fluorescence cystoscopy is indicated as adjunct to standard white light cystoscopy to contribute to the diagnosis and management of bladder cancer in patients with known or high suspicion of bladder cancer. Only return the topic.
Diagnostic Use and Management of Bladder Cancer with Hexvix Blue Light Fluorescence Cystoscopy