EXFOLIATIVE CYTOLOGY Flashcards

1
Q

Branch of General Cytology which deals with the microscopic study of cells that have been desquamated from epithelial surfaces

A

Exfoliative cytology

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2
Q

Spontaneously shed or physically removed from epithelial and mucous membranes

A

Exfoliated cells

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3
Q

Smear preparations

A

Spreading
Streaking
Pull-apart
Touch preparations

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4
Q

Slide is fixed unto a horizontal tube filled with the test fluid, as the centrifuge spins, the fluid is pushed against the slide, coating the slide with a monolayer of cells

A

Cytospin

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5
Q

Fluid is centrifuged, decanted, button is transferred unto piece of filter paper and processed like tissue

A

Cell block

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6
Q

What should be done if smears cannot be made immediately

A

Collected material should be placed in alcohol, and refrigerated

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7
Q

How to fix viscid secretions?

A

Should be fixed in Ether Alcohol solution immediately

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8
Q

How to fix specimens with excessive mucus?

A

Allowed to dry at the edges before fixing

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9
Q

How to fix specimens with excessive blood?

A

RBC’s should be hemolyzed before fixing by adding 2 to 5 ml glacial HAc/100 ml

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10
Q

Fixation time of cytologic smears

A

Minimum of 1 hour

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11
Q

Best fixative for cytology

A

Equal parts of 95% ethyl alcohol and ether

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12
Q

Most common fixative for cytology

A

95% ethyl alcohol

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13
Q

Ideal specimen for sputum smears

A

Fresh, unfixed, early morning sputum comprising of a “deep cough” specimen should be collected every day for 5 days, into a wide- mouth bottle containing the fixative

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14
Q

Number of epithelial cells and neutrophils in acceptable sputum sample

A

Epithelial cells should be <10/LPO and neutrophils >25/LPO

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15
Q

Sputum exam is more commonly performed than bronchial aspiration. True or False?

A

True

Sputum demonstrates abnormal cells early in the disease, while bronchial secretions show evidences of malignancy late in the disease

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16
Q

For gastric secretions and aspirates. Patient should have fasted for

A

At least 8 hours

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17
Q

Urine sample for males

A

Voided urine

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18
Q

Recommended urine sample for females

A

Catheterized specimen

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19
Q

How to examine urine for a more reliable cytological evaluation?

A

Examined 2x, one early morning urine and one later in the day

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20
Q

Originally indicated for vaginal smears to detect human uterine and cervical cancers

A

Papanicolau Method (Pap’s Smear)

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21
Q

Stains for Pap’s smear

A

Harris Hematoxylin
OG 6
EA 50

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22
Q

Modified Papanicolau Staining Method

A

More distinct color differentiation between eosinophilic and orangeophilic cytoplasmic stain by omitting Bismarck Brown dye from the EA 50 formula

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23
Q

LPO examination

A

Assess the quality of smear and staining

Detect the presence of RBC’s and WBC’s, type of exfoliated cells

Rough assessment of the proportion of mature superficial pyknotic acidophilic cells

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24
Q

HPO examination

A

Quantitative evaluation of the smear

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25
Dark pyknotic nuclei, <6 u in diameter True acidophilia under estrogen influence
Mature Superficial Cells
26
Drying of the smears especially before fixation, prolapse and drying of the vaginal epithelium, infection and chemicals
Pseudoacidophilia
27
Medium-sized polyhedral or elongated cells with basophilic cytoplasm showing vacuoles
Intermediate Cells
28
Boat-shaped with strong tendency to fold or curl on edges
Navicular cell
29
Formation of Navicular cell is due to
Combined estrogen-progesterone effect
30
Navicular cells are found in during
Latter half of the menstrual cycle, during pregnancy and early menopause
31
Thick, round to oval, smaller than intermediate cells with strongly basophilic cytoplasm and a larger vesicular nucleus
Parabasal cells
32
Parabasal cells are found during
2 weeks of age to puberty, after childbirth, abortions, and late menopause
33
Similar in appearance to parabasal cells, slightly cylindrical with less basophilic cytoplasm, occurring in groups of 3 or more cells
Endometrial cells
34
Endometrial cells are found in
During and I to 4 days after menstruation
35
Small, round to slightly oval cells with relatively large nuclei, occupying more than half of the cell volume, and strongly basophilic cytoplasm
Basal cells
36
Basal cells are found in
Before puberty and after menopause
37
Gram positive, slender rod-shaped microorganisms commonly found in a normal vaginal flora
Lactobacillus acidophilus
38
Lactobacillus acidophilus are most numerous in
Corpus luteum phase and during pregnancy
39
Mucus, on drying exhibits a "fern" or palm-leaf pattern (arborization)
Ferning
40
Presence of ferning signifies
A high persistent estrogen effect in the absence of progesterone Formation of salt crystals in high NaCI concentration in cervical mucus under the influence of estrogen, inhibited by progesterone
41
Percentage of cells from the main layers of vaginal epithelium
Maturation index
42
Percentage of cells staining pink-orange to red with Pap's smear
Acidophilic index Not a reliable index due to possible psuedoacidophilia
43
Percentage of cells with shrunken, dark, small structureless nuclei
Pyknotic index
44
Autonomous uncontrolled growth of new cells continuously proliferating without any cause or purpose, lacking any orderly structural arrangement, and producing no beneficial effect on the body
Tumor or Neoplasia
45
2 main groups of Tumor or Neoplasia
Benign Malignant
46
Absence of atypical or abnormal cells
Class I
47
Atypical cytologic picture but no evidence of malignancy
Class II
48
Cytologic picture suggestive but not conclusive of malignancy
Class III
49
Cytologic picture strongly suggestive of malignancy
Class IV
50
Cytologic picture conclusive of malignancy
Class V
51
Dense, dark-staining spot or dot of sex chromatin about 1µ in dia on the inner aspect of the nuclear membrane of each somatic cell in the human female
Barr bodies
52
Appearance of Barr bodies in PMNs
Drumstick appearance
53
Segment of one of the two X chromatin or formed by the fusion of the two X chromatins
Sex chromatin
54
Rapid and differential stain for cytology
Polychrome staining method
55
Simple and rapid with clarity of morphologic cellular details
Cresyl Violet method
56
Binds nucleic acids DNA and RNA, and when irradiated by UV light in fluorescence microscopy
Acridine Orange Flourescence Technique
57
Best microscope for routine cytologic examination
Florescence microscope
58
RNA in cytoplasm and nucleus stains
Brick to orange-red
59
DNA stains
Green and yellow
60
Second best choice for routine cytologic examination, with greater possibility for immediate microscopic examination
Phase Contrast Microscopy
61
Used for hormonal evaluation of gynecologic specimen and for cancer detection
Phase Contrast Microscopy
62
Determines the dry weight of individual cells or cellular constituents, cancer cell nucleus and cytoplasmic dry weight content less than that of normal cells
Interference Microscopy