clas·si·fi·ca·tion
the systematic arrangement of similar entities on the basis of certain differing characteristics.
adansonian classification, numerical taxonomy.
Angle classification, a classification of dental malocclusion based on the mesiodistal (anteroposterior) position of the mandibular dental arch and teeth relative to the maxillary dental arch and teeth; see also malocclusion.
Arneth classification, classification of neutrophils according to the number of lobes in their nuclei for calculating the Arneth count.
Bergey classification, a system of classification of bacteria in which the organisms are grouped according to Gram reaction, metabolism, and morphology, with each group being further subdivided into orders, families, genera, and species.
Black classification, a classification of dental caries into five groups on the basis of similarity of treatment required. See table at caries.
Borrmann classification, a classification of gastric carcinoma as either polypoid, ulcerating, ulcerating-infiltrating, or infiltrating.
Broders classification, see under index.
Caldwell-Moloy classification, classification of female pelves as gynecoid, android, anthropoid, and platypelloid; see under pelvis.
Chicago classification, the classification of human chromosomes adopted by geneticists at Chicago in 1966 for the identification of chromosomal bands and regions and for the location of structural chromosomal abnormalities. See also Denver c. and Paris c.
Child-Pugh classification, Child-Turcotte-Pugh classification, a classification of severity of cirrhosis (classes A, B, and C, in order of increasing severity), based on a composite score for five different parameters, each parameter being given a score of 1 to 3, with 3 being the most severe finding. The parameters are hepatic encephalopathy, ascites, total bilirubin, serum albumin, and prothrombin time.
Denver classification, a former classification of human chromosomes on the basis of size and centromere position, adopted by geneticists in Denver in 1960. The 23 pairs of chromosomes are arranged into seven groups, labeled A to G, in the order of decreasing length. See also Chicago c.
Dukes classification, a three-class staging system that classifies colorectal carcinoma from A to C based on the extent of the tumor: A, penetration into but not through the bowel wall; B, penetration through the bowel wall; C, lymph node involvement regardless of extent of bowel wall penetration. Many modifications of this classification exist.
FAB classification, French-American-British c.
FIGO classification, any of the classification systems established by the International Federation of Gynecology and Obstetrics for the staging of gynecological cancers. Cancers at any particular site are staged from 0 to IV with 0 being precancerous or in situ and IV being highly malignant or invasive; subdivisions using letters may also be used, as IA, IB, IIA, IIB, and so on.
Forrester classification, a classification system for patients with suspected or overt heart failure, done after cardiac catheterization of the right heart and determination of cardiac index and pulmonary artery wedge pressure. Patients are divided into four classes according to severity (lower cardiac index and higher wedge pressure being severe). Those in class I were found to have no pulmonary congestion or peripheral vessel hypoperfusion, whereas those in class IV have both of these complications.
Frankel classification, a classification dividing spinal cord injuries into five groups according to severity of deficit below the level of injury: Group A, complete interruption of all sensation and motor function; Group B, incomplete interruption, with some sensation but no motor function; Group C, incomplete interruption, with demonstrable voluntary motor function but at a minimal, nonuseful level; Group D, incomplete interruption, with some voluntary motor function that is useful to the patient; and Group E, recovery to normal functioning attained. Called also ASIA scale.
Fredrickson and Lees classification, a scheme for subdividing the familial hyperlipoproteinemias on the basis of phenotypes, which are classified as I–V. See table at hyperlipoproteinemia.
French-American-British classification, a classification of acute leukemia produced by a three-nation joint collaboration; acute lymphocytic leukemia is subdivided into three types and acute myelogenous leukemia is subdivided into eight types. Called also FAB classification.
Gell and Coombs classification, a classification of immune mechanisms of tissue injury, called by Gell and Coombs “allergic reactions,” comprising four types: type I,immediate hypersensitivity reactions, mediated by IgE antibody; type II,antibody-mediated hypersensitivity reactions, including complement-dependent lysis, antibody-dependent cell-mediated cytotoxicity (ADCC), and phagocytosis induced by opsonizing antibody; type III,immune complex–mediated hypersensitivity reactions, including serum sickness, Arthus reactions, and systemic lupus erythematosus; and type IV,cell-mediated hypersensitivity reactions, mediated by sensitized T lymphocytes either by release of lymphokines or by T-cell–mediated cytotoxicity, including contact dermatitis, allograft rejection, and graft-versus-host disease. Other authorities have added type V, antibody interference with the function of biologically active substances, including autoimmune diseases mediated by antireceptor antibodies and coagulation disorders mediated by antibodies to coagulation factors. The individual types I–IV are described under hypersensitivity reaction, under reaction.
Kauffman-White classification, a scheme for the identification of serovars of Salmonella by classification of their reactions to O, H, and Vi antisera.
Keith-Wagener-Barker classification, a classification of hypertension and arteriolosclerosis based on retinal changes. Group 1, essential benign hypertension indicated by moderate arteriolar attenuation. Group 2, constant high blood pressure but no apparent effect on health, indicated by more definite arteriolar attenuation with localized constriction. Group 3, hypertension with retinal, renal, cerebral, and other symptoms, indicated by marked attenuation of the arterioles, cotton-wool exudates, and hemorrhages. Group 4, severe hypertension with severe nervous system, visual, and other organ disturbances, indicated by ophthalmoscopic signs of Group 3, with papilledema.
Kennedy classification, a classification of partially edentulous conditions and partial dentures, based on the location of the edentulous spaces in relation to the remaining teeth.
Kiel classification, a classification of non-Hodgkin lymphomas, used primarily in Europe and based on morphologic and cytologic criteria. A later classification system is the Revised European-American Lymphoma(REAL) Classification. Called also Lennert c.
Killip classification, a classification system for patients with suspected or overt heart failure, based on a physical examination to determine clinical manifestations. Patients are divided into four classes, with class I being no heart failure; class II being presence of the third heart sound or basal lung crepitation; class III being acute pulmonary edema; and class IV being presence of cardiogenic shock.
Lancefield classification, a serologic classification of the hemolytic streptococci, based on extraction and examination by a precipitin technique of group-specific carbohydrate antigens called C carbohydrates in the cell wall. Groups A to O have been established, with groups A to G being the most common ones infecting humans.
Lennert classification, Kiel c.
Lukes-Collins classification, a classification of non-Hodgkin lymphomas based on their presumed cells of origin. It stresses the distinction between B-cell, T-cell, and lymphocytic lymphomas, with the B-cell and T-cell types having several subtypes that can be arranged by grade of malignancy. A later classification is the Revised European-American Lymphoma(REAL) Classification.
Lund-Browder classification, a classification of burn severity in children, attaching percentages to different body surface areas similarly to the rule of nines used for adults; it is modified according to the age of the child.
McNeer classification, Borrmann c.
New York Heart Association (NYHA) classification, a functional and therapeutic classification for prescription of physical activity for cardiac patients; see table.

 

 

 

 

 

 

 

 

 

 

 

 

Classification terms

deficiency

lack of or defect

degenerative

deterioration

developmental

type disease resulting from abnormality in tissue, organ, or body part

essential

assigned to a disease which cause is unknown - spontaneously arises hypertension, hypertrophic cardiomyopathy

familial

occurring in or affecting more family members than expected by chance

functional

disturbance of function -example: menorrhea, menorrhagia not explained by fibroids with no structural or chemical abnormality, endrometriosis, infection etc..

hereditary

idiopathic

infectious

molecular

neoplastic

nutritional

organic

traumatic

disease

etiology

pathology

prognosis

syndrome

auscultation

palpation

percussion

biopsy

radiology

endoscopy

serology

antigens

osteodystrophy

hypertension

degenerative joint disease

Alzheimer disease

hypertrophic

cardiomyopathy

menorrhea

menorrhagia

fibroids

endometriosis

hemophilia

dyslexia

asthma

pneumonia

mononucleosis

anemia

congenital

neoplasm

tumor

benign

malignant

bulimia

anorexia nervosa

scurvy and rickets

post-traumatic stress disorder

acquired

AIDS

acute

asymptomatic

chronic

disabling

end-stage

terminal

intermittent

neonatal

paroxysmal

paroxysmal nocturnal dyspnea

progressive

recurrent

relapsing

cessation

remissive

sequela

subacute

spondylolisthesis