the term "paranoid schizophrenia" is no longer used in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), which is the standard classification system for psychiatric disorders. Instead, the DSM-5 uses the diagnosis of "schizophrenia" and includes various subtypes based on the predominant symptoms that the individual experiences.
In the past, paranoid schizophrenia referred to a subtype of schizophrenia where individuals experienced prominent paranoid delusions and hallucinations. These delusions typically revolved around themes of persecution, conspiracy, or a belief that others were plotting against or harming them.
Now, under the DSM-5, schizophrenia is diagnosed based on a constellation of symptoms, which may include delusions, hallucinations, disorganized thinking, disorganized or abnormal motor behavior, and negative symptoms (e.g., reduced emotional expression or motivation).
So, to address your question, the diagnosis of schizophrenia does not require the presence of paranoia specifically. A person can be diagnosed with schizophrenia without experiencing prominent paranoid delusions. Other types of delusions or hallucinations, as well as other symptoms, may be more dominant in some cases.
It's essential to remember that schizophrenia is a complex and severe mental disorder, and diagnosis and treatment should be conducted by qualified mental health professionals based on a thorough assessment of the individual's symptoms and history. Additionally, mental health diagnoses and classifications may evolve over time with advancements in research and understanding of mental illnesses.