Catatonic schizophrenia and Schizophrenic disorder

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

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