Cassius the Iatrosophist (Κάσσιος ὁ Ἰατροσοφιστής) was a physician-teacher or medical writer of the Roman Imperial period, most likely active in the 2nd–3rd century CE [1]. His epithet links him to the learned medical circles of centers like Alexandria. No specific biographical details survive beyond what can be inferred from his sole extant work.

His only known writing is the Problemata (or Quaestiones Medicae et Problemata), a medical question-and-answer text [1].

Cassius is significant as an exemplar of the "problemata" genre within ancient medicine and natural philosophy. His work, following a tradition popularized by the pseudo-Aristotelian Problemata, blends Hippocratic, Aristotelian, and Hellenistic ideas to address physiological, dietary, and environmental questions [1]. It provides valuable insight into the pedagogical transmission of consolidated medical knowledge in late antiquity.

Sources 1. Oxford Research Encyclopedia of Classics: https://oxfordre.com/classics/classics/view/10.1093/acrefore/9780199381135.001.0001/acrefore-9780199381135-e-7992