<unk>  is a "depressive episode arising in the aftermath of a<unk>  illness where some low-level<unk>  symptoms may still be present." Someone that suffers from<unk>  experiences both symptoms of<unk>  and can also continue showing mild symptoms of<unk> . Unfortunately,<unk>  is a common symptom found in patients with<unk>  and can fly under the radar for years before others become aware of its presence in a patient. However, very little research has been done on the subject, meaning there are few answers to how it should be systematically diagnosed, treated, or what course the illness will take. Some scientists would entirely deny the existence of<unk> , insisting it is a phase in<unk>  as a whole. As of late,<unk>  has become officially recognized as a syndrome and is considered a sub-type of<unk> .
Post-schizophrenic depression
Unitary psychosis
Substance-induced psychosis
Tardive psychosis
Brief psychotic disorder
Pseudoneurotic schizophrenia
Outline of bipolar disorder
Secondary mania