Question 51 · LEK · Persistent delusional disorder
A 67-year-old woman lives alone in a small apartment. She has been conflicted with her neighbors for 2 years. She threatens them and keeps tapping the pipes and the ceiling. She believes the neighbors let a poisonous gas into her flat. She frequently calls the police asking for an intervention. She complains of the neighbors, ineffectiveness of the police and building authority. She was never treated psychiatrically before. Which of the following is the most probable diagnosis?
- A. schizophrenia.
- B. schizotypal disorder.
- C. persistent delusional disorder.
- D. acute and transient psychotic disorder.
- E. schizoaffective disorder.
Hint
Note the late onset, a single persecutory theme lasting years and the absence of other psychotic or mood features.
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