Definitions Flashcards

(44 cards)

1
Q

Hyperplasia

A

Increase in the number of cells in tissue or organ in response to a stimulus

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2
Q

Ulcer

A

An ulcer is a local defect of the mucous membrane or the skin due to gradual disintegration of the surface epithelial cells

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3
Q

Adenocarcinoma

A

Cancer forming from the mucus secreting glands

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4
Q

Pancreatic pseudocyst

A

Amylase rich, fluid filled lesion non epithelialised
Four to six weeks after acute attack of pancreatitis

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5
Q

Atherosclerosis

A

Pathological process of the vasculaturw in which artery wall thickens as a result of accumulation of fatty materials such as cholesterol

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6
Q
A
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7
Q

ARDS

A

Acute, diffuse inflammatory lung injury caused by Diffuse alveolar damage and lung capillary endothelial injury

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8
Q

Barrett’s

A

Columnar metaplasia of stratified squamous epithelium of the oedophagus that increases risk of adenocarcinoms

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9
Q

Bence jones

A

Monoclonal globulin proteins or Ig light chains found in urine, produced by neosplastic plasma cells

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10
Q

Breslow thickness

A

Measured in mm

From the top of stratum granulosum to the deepest point of the tumour involvement

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11
Q

Carcinoma

A

Cancer derived from epithelial cells

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12
Q

Carcinoid tumour

A

Slow growing neuroendocrine tumour derived from enterochromaffin cells

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13
Q

Cellulitis

A

Spreading material infection of the skin, affecting dermis, subcutaneous fat - characterised by redness, warmth, swelling and pain

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14
Q

Choriocarcinoma

A

Malignant tumour derived from trophoblast cells, syncitiotrophoblast and cytotrophoblast

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15
Q

Contact tracing

A

Identification and diagnosis of persons who may have come into contact with an infected person

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16
Q

Cryptorchidisn

A

Complete or partial failure of intra abdominal testes to descend into the scrotal sac

Associated with testicular dysfunction and increased risk of testicular cancer

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17
Q

Frozen section

A

Laboratory technique to perform rapid microscopic analysis of specimen

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18
Q

Giant cells

A

Multinucleate cells derived from the fusion of multiple activated macrophages to form granuloma

19
Q

Cross matching

A

Testing donor red cells against recipient serum to detect any potential incompatibility in which antibiotics in recipient cause haemolytic of donor cells

20
Q

HER2

A

Transmembrane epidermal growth factor, overexpressed in 15% of breast cancer cases

21
Q

High sensitivity

A

Ability of a test to correctly identify those with a disease

22
Q

High specificity

A

Ability of a test to correctly identify those without disease

23
Q

Hyperpladia

A

Increase in the number of cells in a tissue in response to a stimulus

24
Q

Immunohistochemistey

A

Laboratory technique that utilises antibody antigen complement fixation to localise specific antigens in cells

25
Involucrum
Thickened new bone formed by periosteum enclosing sequestering If infection persists, there will be perforation of involucrum and sinus formation to the skin
26
Mohs micrographic surgery
Serial tangential horizontal sections with serial histological evaluation, until all margins are clear
27
Metastasis
Survival and growth of cells at a site distant from their primary origin
28
Multiple myeloma
Malignant tumour of plasma cells Most common primary bone tumour in elderly - associated with lyric bone lesions, malignant hypercalcaemia, renal failure and acquired immune abnormalities
29
Necrosis
Accidental and unregulated form of cell death resulting from cell membrane damage and loss of ion homeostasis
30
Pathological fracture
Bone fracture occurring without adequate trauma and is caused by a pre-existent pathological bone lesion
31
Panton Valentine Leucocidin
One of thirteen pore forming toxins associated with increased virulence of certain strains of staph aureus. Present in the majority of community MRSA
32
Pus
Thick, yellowish liquid formed as part of an inflammatory process Composed of exudate, chiefly containing dead white bloods cells I.e neutrophils, tissue debris and pathogenic microorganisms
33
Sick cell disease
Common hereditary haemoglobinopatht caused by point mutation in B globin that promotes polymerisation of deoxygenated haemaglobin
34
Telomere
Region of repeated nucleotide sequences at each end of a chromosome, which protects the chromosome from deterioration or fusion with neighbouring chromosome
35
What is GCA
Granulomatous Inflammatory disease of large and medium sized blood vessels causing intimal thickening Mainly affects branches of ECA
36
What is granuloma
Organised collection of macrophages fusing to form Langerhans giant cells
37
Two hit hypothesis
Most loss of function mutations in tumour suppressor genes are recessive In order for a particular cell to become cancerous and the mutation phenotype expressed, both alleles must be mutated
38
What is h pylori
Gram negative microaerophilic spiral bacteria found in the stomach
39
Troponin
Complex of three regulatory proteins (troponin C, I and T) that is integral to muscle contraction
40
What is SIRS
Temp <36 or >38 HR >90 Tachypnoea >20 OR PaCO2 <4.3 WCC <4 OR >12 Hyperglycaemia >6.6 Altered mental status
41
FAP
autosomal dominant condition Hundreds of adenomatous polyps mainly in epithelium of large intestine 100% cancer risk by 40 Loss of APC tumour suppressor gene on Ch 5
42
Dysplasia
Disordered cellular development characterised by increased mitosis and pleomorphism WITHOUT ability to invade basement mmbr
43
Granulation tissue
Combination of proliferating fibroblasts, loose connective tissue, new blood vessels and scattered chronic inflammatory cells A type of tissue unique to healing wounds
44
Steroid
Organic compound composed of 4 cycloalkaine rings that joined together