#agnostic
- Begin with the essential — A Latin aphorism adapted in medical methodology and epidemiology meaning 'let us begin with the most important thing' (literally: 'the beginning from Jove/Jupiter'). In clinical diagnosis, toxicology, and epidemiological tracing, the maxim dictates starting the evaluation with the most probable hypothesis, the most dangerous toxin, or the most critically affected vital organ to optimize intervention time and save the patient's life.
- Abderhalden reaction — A medical eponym linked to the biochemist Emil Abderhalden, used to denote the immunological defense reaction (Abderhalden reaction) based on protective enzymes in the serum, previously used for the early diagnosis of pregnancy or certain oncological and psychiatric conditions (such as dementia praecox). The term also defines the Abderhalden-Kaufmann-Lignac syndrome, a rare congenital metabolic disorder characterized by cystinosis and renal dwarfism.
- Abdomenoscope — An archaic or historical name for the endoscope previously used for the direct examination of the abdominal cavity (a precursor to the modern laparoscope). In early clinical semiology, the introduction of the abdomenoscope allowed physicians to visually verify the somatic hypotheses of alienated patients, eliminating suspicions of real tumors in cases of severe hypochondriacal delusion or imaginary pregnancy (pseudocyesis).
- Abdominoscopy — An archaic or historical diagnostic method consisting of the direct visual examination of the abdominal cavity and internal organs using an abdomenoscope inserted through a small incision in the belly wall. In early neuropsychiatric semiology, performing an abdominoscopy served as a differential diagnostic tool to exclude real tumoral or inflammatory pathologies in alienated patients presenting with severe somatic fixations, persistent hypochondriacal delusions, or pseudocyesis phenomena (imaginary pregnancy).
- Abhorrence / Loathing act — The act of abhorring and its result; the psychic process or external manifestation of a deep feeling of rejection, ultimate detestation, hatred, or unyielding aversion. In medical terminology and behavioral analysis, the term indicates the psychic dynamics through which an individual expresses somatic or ideational repulsion, serving as an important indicator in evaluating the intensity of affective disorders or conditioned aversions.
- Acromegalic — A synonymous variant of the adjective acromegal; relating to acromegaly, manifesting its symptoms, or affected by the hypersecretion of somatotropin. As a noun, the term defines a male individual presenting the clinical picture of the disease, marked by hypertrophy of the facial bones, hands, and feet secondary to a pituitary adenoma.
- Acropathology — A specialized branch of medical pathology or a niche clinical discipline dealing with the systematic study, diagnosis, anatomical description, and treatment of all diseases, structural anomalies, injuries, and functional disorders localized within the extremities of the body (hands, feet, and digits).
- Adenography — An imaging method or radiological investigation technique that allows the structural visualization and detailed examination of the glandular system or lymph nodes. This medical procedure is typically performed by introducing a radiopaque contrast medium into the efferent lymphatic vessels, followed by taking successive X-rays to detect abnormalities such as tumors, structural blockages, or chronic inflammation.
- Adenogram — The written result, graphical representation, or quantitative and qualitative microscopic interpretation of the cells obtained by fine-needle aspiration of a lymph node or a gland. This structural laboratory investigation (also known as a lymphadenogram) establishes the percentage ratio between different cell types (lymphocytes, neutrophils, histiocytes) to differentiate an inflammatory reaction from a malignant proliferation.
- Adipocele — A rare hernial formation or hernial sac whose structural content consists exclusively of fatty (adipose) tissue or omentum, without the involvement of intestinal loops or other internal organs; a fatty hernia most frequently located in the inguinal or umbilical region.
- Aerocystography — A radiological method for investigating the urinary bladder consisting of performing radiographs after the bladder cavity has been distended by insufflating a controlled amount of air or another sterile gas. This imaging examination highlights the contour of the bladder walls, detecting radiolucent tumors, calculi, or diverticula, functioning as a negative contrast medium.
- Aerocystoscope — An endoscopic medical instrument specially designed for the direct visual examination of the inside of the urinary bladder after it has been mechanically distended by insufflating sterile air or another gas, instead of liquid. This device allows the urologist to inspect the bladder mucosa without the optical distortions sometimes caused by fluids.
- Aerocystoscopy — A method of direct visual endoscopic examination of the inside of the urinary bladder using an aerocystoscope, after the cavity has been mechanically distended by insufflating sterile air or another gas. This diagnostic or therapeutic procedure allows a meticulous inspection of the bladder mucosa and small surgical interventions without using a liquid medium.
- Aerplethysmograph — A high-precision medical device used to measure and record volume variations of air in the lungs or respiratory gas flows during different phases of ventilation. The device functions structurally based on pressure changes inside a sealed cabin, providing essential clinical data for diagnosing obstructive or restrictive pulmonary disorders.
- Aerouretroscope — A precision urological medical instrument used for the direct visual examination of the interior of the urethra, structurally designed to allow the controlled insufflation of air or gas to dilate the urinary lumen and facilitate mucosa visualization. This technical device enables the diagnosis of strictures, cysts, or other specific urethral pathologies.
- Agnostic — The feminine form of the term agnostic; designates a woman who adheres to agnosticism or, as an adjective, a perspective, doctrine, or intellectual attitude based on the conviction that the ultimate truth, the absolute, or the existence of God is fundamentally unknowable to the human mind.
- Agnosticism — A philosophical doctrine or doctrine of epistemology holding that the existence of God, the divine, or the essential reality of things is unknowable or unprovable. It posits that human reason is inherently limited, thereby suspending definitive judgment on metaphysical and supernatural claims.
- Agnosticist — A less frequent lexical variant of the term 'agnostic'; refers to a person who professes or supports the principles of agnosticism, maintaining that the absolute, divinity, and primordial causes of the universe exceed the natural understanding capacity of the human mind.
- Agnosticist — The feminine form of the term agnosticist; designates a woman who supports the theses of agnosticism or, as an adjective, a doctrinal orientation, critical perspective, or research method based on suspending judgment regarding metaphysical matters that cannot be experimentally proven.
- Albuminemia — The presence and concentration of albumin in the blood plasma; a clinical laboratory test used for the quantitative determination of this protein fraction, serving as a fundamental indicator of nutritional status, liver synthesis function, and kidney glomerular permeability.