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Primary gain can be a component of any disease, but is most typically demonstrated in conversion disorder — a psychiatric disorder in which stressors manifest themselves as physical symptoms without organic causes, such as a person who becomes blind after seeing a murder. The "gain" may not be particularly evident to an outside observer.
Secondary brain injury occurs gradually and may involve an array of cellular processes. [1] [2] Secondary injury, which is not caused by mechanical damage, can result from the primary injury or be independent of it. [3] The fact that people sometimes deteriorate after brain injury was originally taken to mean that secondary injury was occurring ...
The cause of this condition is divided into primary and secondary, as follows: The cause of this condition in terms of secondary empty sella syndrome happens when a tumor or surgery damages the gland, this is an acquired manner of the condition. [1] patients with idiopathic intracranial hypertension will have empty sella on MRI [5]
How this occurs in secondary erythromelalgia is poorly understood and may be specific to the underlying primary condition. Primary conditions that have been shown to elicit erythromelalgia are listed in diagnosis, below. [9] Primary erythromelalgia is a better understood autosomal dominant disorder.
Spontaneous pneumothorax is, as in humans, classified as primary or secondary, while traumatic pneumothorax is divided into open and closed (with or without chest wall damage). [63] The diagnosis may be apparent to the veterinary physician because the animal exhibits difficulty breathing in, or has shallow breathing.
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Neoplasm in the brain Medical condition Brain tumor Other names Intracranial neoplasm, brain tumour, brain cancer Brain metastasis in the right cerebral hemisphere from lung cancer, shown on magnetic resonance imaging Specialty Neurosurgery, neuro-oncology Symptoms Vary depending on the ...
Often a diagnosis may be made at some future point when other more specific symptoms emerge but many cases may remain undiagnosed. The inability to diagnose may be due to a unique combination of symptoms or an overlap of conditions, or to the symptoms being atypical of a known disorder, or to the disorder being extremely rare. [34]
Secondary hyperaldosteronism (also hyperreninism, or hyperreninemic hyperaldosteronism) is due to overactivity of the renin–angiotensin–aldosterone system (RAAS).. The causes of secondary hyperaldosteronism are accessory renal veins, fibromuscular dysplasia, reninoma, renal tubular acidosis, nutcracker syndrome, ectopic tumors, massive ascites, left ventricular failure, and cor pulmonale.