Diagnosis of<unk>  can be complicated because it shares symptoms with other conditions.  For example, post-concussion symptoms such as cognitive problems may be misattributed to brain injury when they are in fact due to post-traumatic stress disorder (PTSD).
Concussion differential diagnosis
Cough differential diagnosis
Headache classification
List of voice disorders
Monkeypox differential diagnosis
Odynophagia differential diagnosis
Beriberi differential diagnosis
Differential diagnosis