[Slow-progressive schizophrenia (actual problems of clinical appearance and systematics)]

Slow-progressive schizophrenia is a slow-progredient endogenous process characterized by a prevalence of either negative disorders which do not reach final stages as in a case of psychotic types, or positive symptom complexes showing affinity to psychopathological appearances of "borderline" level (obsessions, somatoform, dissociate, nonpsychotic affective disorders, over-value formations). The clinical systematics of slow-progressive schizophrenia is built on a model implying a prevalence of either negative or positive disorders. Respectively, in the terms of "negative" schizophrenia, there are disease variants featured by a predominance of basic manifestations of an endogenous process: slow-progredient simple, asthenic, and senestopathic schizophrenia. Positive schizophrenia following the pattern of pseudoneurosis is represented by the following variants: neurotic-like, hysteric, depersonalization, visceral neurotic, hypohondriac as well as reactive schizophrenia.