Catatonic schizophrenia and Schizophrenic psychosis

Catatonic schizophrenia noun - A form of schizophrenia characterized by a tendency to remain in a fixed stuporous state for long periods; the catatonia may give way to short periods of extreme excitement.

Schizophrenic psychosis and catatonic schizophrenia are semantically related. In some cases you can use "Schizophrenic psychosis" instead a noun phrase "Catatonic schizophrenia".

Schizophrenic psychosis noun - Any of several psychotic disorders characterized by distortions of reality and disturbances of thought and language and withdrawal from social contact.

Catatonic schizophrenia and schizophrenic psychosis are semantically related. Sometimes you can replace phrase "Catatonic schizophrenia" with "Schizophrenic psychosis", this phrases are similar.