The relationships among dissociative, somatoform, and conversion disorders have long been uncertain and uneasy in the history of efforts to classify and understand them. The current classification of these disorders has evolved over centuries from common historical roots in a syndrome previously known as hysteria that has been interlinked in some periods with spiritual maladies.
In the first half of the twentieth century, attention to dissociative disorders dwindled to the point of near extinction of the syndrome. Dissociative syndromes were conceptually subsumed into hysteria, the forerunner of the modern diagnosis of somatization disorder
In 1697, the English physician Thomas Sydenham conceived of hysteria as an emotional condition rather than as a physical disorder, moving the source of the disorder from the uterus to the central nervous system [5,18]. Sydenham referred to hysteria as “Proteus,” acknowledging this disorder’s proclivity to simulate almost any disease
Freud is credited with having first introduced the concept of hysterical conversion, and he originally coined this term [29,34]. Freud emphasized psychological origins to hysterical conversion phenomena, in which ideas or memories too unpleasant for conscious awareness are repressed into the unconscious and “converted” into physical symptoms to solve unbearable psychological conflicts
At this point in history, dissociation and conversion were clearly still embedded within a unified concept of hysteria.
Later in that century [...] The Washington University group adopted the name “Briquet’s syndrome” to replace the older term “hysteria,” which had long since become heavily laden with pejorative connotations
After DSM-II, [...] the term “somatoform” was originally established to refer to physical symptom complaints without a medical basis, reminiscent of those represented in the older concepts of hysteria and Briquet’s syndrome.
the basis of psychodynamic theory in the formulation of criteria for psychiatric disorders was formally abandoned 35 years ago beginning with the third edition of the Diagnostic and Statistical Manual
In the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) [...] Somatization disorder was removed entirely. [...] Conversion disorder was retained in DSM-5
The degree of overlap among dissociative, somatoform, and conversion phenomena within patients has complicated efforts throughout history to categorize these disorders. Additional psychiatric comorbidities demonstrated in association with these disorders, especially borderline personality disorder, have further confused efforts to categorize these disorders.
An extensive review of multiple personality disorder by North et al. [14] demonstrated abundant evidence of comorbidity with somatization disorder (33%–100%), conversion disorder (generally > 50%), and borderline personality disorder (about 50%–70%), with three or four comorbid disorders on average.
In the Epidemiologic Catchment Area (ECA) household study of the prevalence of psychiatric disorders in America [92], 100% of individuals diagnosed with somatization disorder also met criteria for another psychiatric disorder.
Comorbidity of somatization disorder and conversion disorder with borderline personality disorder is well documented [14]. Borderline personality disorder is characterized in current diagnostic criteria as a pattern of instability in interpersonal relationships, self-image, and emotional regulation, with marked impulsivity [64]. Studies of patients with borderline personality disorder [96,97,98] have found that 96%–100% of these patients have psychiatric comorbidities, with a mean of 3.4–5.1 comorbid disorders [96,98]. In one of these studies [96], nearly two-thirds (62%) of the patients also met diagnostic criteria for Briquet’s syndrome; additionally, the comorbidity with somatization disorder was higher using DSM-IV criteria than with DSM-III criteria.
Hudziak’s group [96] was impressed by the similarities in the criteria for borderline personality disorder and descriptions of the characteristics of patients with Briquet’s syndrome, leading them to consider the possibility that Briquet’s syndrome might actually constitute a subset of borderline personality disorder.
MMPI evidence suggests that somatization disorder, dissociative identity disorder, and borderline personality disorder share much of their psychopathological material in common.
Because the classification of disorders formerly conceptualized as hysterical involves two main categories of somatoform and psychoform symptoms, a new term, “oForm,” is suggested to refer to these categories of psychopathology. This term is descriptive and circumvents the longstanding pejorative term “hysteria” formerly previously used as the name for the psychopathology of these syndromes [39,41,42,43] and which has also been used to describe many different syndromes.
In a nutshell, hysteria is an outdated term with a pejorative connotation.
But the psychodynamic and psychoanalytic schools didn't get the memo - they associate hysteria with hpd which, frankly, is a huge departure from the historical concepts of hysteria per this article.
The terms hysteria and hysterical haven't appeared in the DSM since DSM-III in 1980, I believe. The DSM allegedly embrace an atheoretical approach, moving away from schools' dogmas.
And hysteria's modern incarnations (conversion and somatization), are heavily correlated with BPD.
P.S. Histrionic PD is still in the DSM-V, my mistake ...