Nihilistic delusions are seen in -a) Endogenous depressionb) Double depressionc) Depression in invoiutional staged) Cyclothymiae) Dysthymia

Psychotic features (delusions, hallucination) can occur in endogenous depression (not in reactive / neurotic depression) and occurs later in life (involutional depression). Major endogenous depression on top of dysthymia is called double depression → Psychotic features may occur.