Masked depression
Hidden, or larvated, depression is a variant of endogenous affective disorder. The main feature is that classic low mood (hypothymia) recedes into the background. Vegetative and somatic complaints come to the fore, among which non-organic sleep disorders frequently appear.
Patients rarely complain of deep sorrow (melancholia), making standard survey methods of little diagnostic value. The disease hides behind various «masks»:
- Autonomic and somatic manifestations: sleep disturbances (insomnia, early awakenings), a feeling of chest pressure, blood pressure fluctuations, changes in appetite and weight, dry mouth, mydriasis.
- Pain syndromes: atypical pain in the heart, abdomen, head, joints, mimicking radiculitis.
A key diagnostic marker is the striking discrepancy between the patient's numerous agonizing complaints and the absence of real organic changes according to examination data. A thorough history-taking reveals hidden markers: anhedonia, a desire to isolate oneself from society, a sense of hopelessness, and a loss of interest in favorite activities. An important sign is also the worsening of the condition in the mornings and the unexpected termination of the attack, characteristic of endogenous processes.
Hypochondriacal disorders
Hypochondria is characterized by a person's groundless fixation on their own health and the fear of having a fatal disease. This is not a separate nosology, but a symptom that can range from obsessions to severe delusions.
- Obsessional form: The patient constantly analyzes the functioning of their body and doubts their health. They understand the groundlessness of their fears, agree with the doctors' arguments, but are unable to cope with the anxiety on their own. It often occurs in psychasthenics or as a reaction to iatrogenesis (a careless remark by a medical professional).
- Overvalued form: Attention shifts to the slightest discomfort. Patients actively fight for their health using exhausting diets or workouts, and may conflict with medical staff. It often accompanies paranoid disorders or the onset of schizophrenia.
- Delusional form: Unwavering, critically unexamined conviction in the presence of a fatal illness. Any attempts by the doctor to reassure the patient are perceived as a conspiracy or concealment of the truth. It may be accompanied by coenaesthesias and hallucinations.
Hysterical conversion
Conversion is a specific psychological defense mechanism in which severe emotional stress is transformed into physical symptoms through autosuggestion. Unlike malingering, which is a conscious act, hysterical manifestations occur against a person's will and bring them genuine suffering.
Whereas previously hysteria manifested as gross neurological disorders (paralysis, blindness, mutism), today the symptomatology has evolved. Modern patients more frequently demonstrate pain syndromes, respiratory and swallowing disorders, stuttering, and strange paresthesias.
Features of conversion symptoms:
- Triggered directly after a stressful event.
- The clinical picture does not fit into the framework of classical medicine, as it reflects only the patient's personal idea of what a disease should look like.
- Symptomatology sharply increases if the patient is the center of attention of others and subsides in a calm environment.
- Unconditioned reflexes always remain intact, as hysteria cannot influence functions beyond conscious control.
Briefly: answers to topical questions
What groups of psychotropic drugs are used for the pharmacotherapy of masked depression?
The provided sources do not specify particular drug groups for the pharmacotherapy of masked depression.
What organic pathologies must be differentiated from hysterical conversion?
Hysterical conversion disorders must be differentiated from organic lesions of the central nervous system and somatic pathology. In particular, hysterical seizures are differentiated from epileptic seizures, and hysterical sensory disorders from polyneuropathies. Hysterical conversion is characterized by the preservation of unconditioned reflexes and a mismatch between sensory disturbances and anatomical innervation zones; in a hysterical seizure, the most reliable sign of a true grand mal seizure is a comatose state.
What risk factors and conditions provoke the development of the obsessional form of hypochondria?
The development of the obsessional form of hypochondria is provoked by certain personality traits and external triggers. The main risk factors and conditions include:
- Personality decompensation — occurs in anxious and suspicious individuals (psychasthenics).
- Obsessive-phobic neurosis — hypochondria acts as one of its manifestations.
- Iatrogenesis — a careless word from the attending physician.
- Information exposure — misinterpreted medical information (e.g., from advertisements or the «third-year disease» phenomenon among medical students).
Masks of depression: «SAD EAT» — Sleep (disorders), Awakening/Morning (worsening), Weight (fluctuations), Eating (appetite changes), Discrepancy (between complaints and clinical picture), Isolation, Joy (absence thereof).
Class and exam questions
Why do patients with masked depression frequently consult physicians of other specialties?
Because classical depressed mood recedes into the background and somatic complaints (pain, insomnia, blood pressure surges) become dominant, patients are treated by general practitioners and neurologists for years with erroneous diagnoses such as vegetative-vascular dystonia or osteochondrosis.
How do acute infections affect the course of hidden depression?
The onset of an intercurrent disease with a high fever (e.g., severe influenza) can paradoxically reduce the feeling of melancholy or even completely interrupt the depressive episode.
What else to study on this topic
- Diagnostic criteria for obsessional, overvalued, and delusional hypochondria
- Coenaesthesic-hypochondriacal syndrome in schizophrenia
- Differential diagnosis of masked depression and somatic diseases
- The role of iatrogenesis in the development of obsessive hypochondria
- Evolution of conversion symptoms from the 19th century to the present day
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Other topics in "Chapter 16. Somatic disorders and disturbances of physiological functions as a manifestation of mental pathology"
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