Conflicts between physicians and families about end-of-life decisions creat
e challenging and emotionally difficult situations. In this article, we pro
pose a "differential diagnosis" of such conflicts, distinguishing and descr
ibing the characteristics of families, physicians, and organizations and so
ciety that contribute to the "etiology" of the situation, as well as strate
gies for "diagnosing" the dominant factors. As a medical model, the differe
ntial diagnosis can be a useful tool to help physicians understand and mana
ge conflicts about end-of-life care.