Complex Case of Altered Mental Status in Cancer Patient

This chapter examines an intricate medical case of an elderly gentleman facing tonsillar squamous cell carcinoma with metastasis, who develops altered mental status after a routine nephroureteral tube replacement. The discussion includes diagnostic methods for identifying the causes of his confusion, considering factors like opioid use, immunotherapy effects, and potential infections. It highlights the importance of thorough evaluation to differentiate between central nervous system and systemic factors impacting his condition.