Part 1 – Initial History and Physical Exam
Part 2 – Initial Workup and Early Hospital Course
Part 3 – Advanced Workup and Specialist Consult
Part 4 – Final Diagnosis and Take Home Points
Clinical Reasoning Skills – going from a problem list, to a well defined syndrome, subsequent differential based testing- are the foundation of good Internal Medicine Practice
Skills used in this scenario:

Illness Script – with an atypical HPI, do parts of it fit with a script we know?
Differential Diagnosis generation – Mnemonics help! Especially with CC with a broad DDx