Quiz
Pigments in histopathology
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Questions in this quiz (32)
1What pigment is deposited in this picture?
- AHemosiderin
- BTattoo pigment
- CLipofuschin
- DDebris
2Von Kossa's method is for calcium
- ATrue
- BFalse
3Hemosiderin is detected using [blank_start]Perls[blank_end] Reaction. Ferric iron deposits in tissue react with [blank_start]soluble[blank_end] ferrocyanide to form [blank_start]insoluble[blank_end] prussian blue dye
- APerls
- Balizarin red
- Csoluble
- Dinsoluble
4Copper; (choose all correct options)
- AStained with Perls
- Btrace elements for enzyme reactions
- CHigh levels in liver may indicate alcoholic liver disease
- DStained with alizarin red
- ECan be stained by Rhodanine stain
5Anthracosis is also known as carbon lungs
- ATrue
- BFalse
6Asbestosis is covered in iron containing protein coat; use Perls stain
- ATrue
- BFalse
7Talc is biofringent
- ATrue
- BFalse
8What colour is embolisation pigment?
- ABrown
- BBlack
- CYellow
- DRed
9Tattoo pigments in skin tissue microscopy can be problematic with the diagnosis of [blank_start]melanoma[blank_end]
- Amelanoma
10Cholesterol [blank_start]clefts[blank_end] are due to [blank_start]xylene[blank_end] and alcohol dissolving cholesterol crystals.
- Aclefts
- Bdomes
- Cxylene
- Dacid
- EEosin
11Melanin is an endogenous pigment
- ATrue
- BFalse
12[blank_start]Bile[blank_end] pigments can be detected with Fouchet's bile stain.
- ABile
13What is Perls reaction positive for?
- AHemosiderin
- BHematoidin
- CLipofuscin
14What is Autofluorescence positive for?
- AHemosiderin
- BHematoidin
- CLipofuscin
15What is Schmorl's positive for?
- AHemosiderin
- BHematoidin
- CLipofuscin
16melanin is a tyrosine based pigment
- ATrue
- BFalse
17The two types of melanin are [blank_start]dermal[blank_end] and [blank_start]neural[blank_end]
- Adermal
- Bneural
18[blank_start]Argentaffilic[blank_end] reaction binds silver and reduces it to black, whilst [blank_start]Argyrophilic[blank_end] binds silver but needs an external reducer such as formalin. (e.g. reticulin stain)
- AArgentaffilic
- BArgyrophilic
- CArgyrophilic
- DArgentaffilic
19Melanin is Argentaffilic
- ATrue
- BFalse
20Hydrogen peroxide bleach can be done to remove [blank_start]melanin[blank_end] pigment
- Amelanin
21Choose correct information in regards to Dermal melanin.
- APolymerisation of tyrosine
- BOxidation of dopamine
- CSchmorl's positive
- DH2O2 bleach takes 6+hours
- EBleach takes less than 3 hours
- FDiPAS negative
- GDiPAS positive
- HArgentaffilic development time is 30 minutes
- IArgentaffilic development time is 60 minutes
22Tick boxes below that are classified as aging pigments
- ALipofuscin
- BMelanin
- CRussell bodies
- DAmyloid
- EBile pigment
- FCorpora Amylecea
- Ghemosiderin
23Corpora Amylacea is PAS negative
- ATrue
- BFalse
24Amyloid pigment is [blank_start]birefringent[blank_end] in polarised light after Congo red staining. It is an [blank_start]extracellular[blank_end] and proteinaceous. Several techniques should be used such as IHC and Crystal Violet for [blank_start]metachromasia[blank_end].
- Abirefringent
- Binvisible
- Cmetachromasia
- Dpolychromasia
- Eextracellular
- Fintracellular
25What pigment is usually found in "Brown atrophy" of heart, adrenal glands and hepatic parenchymal cells? (They are gold/brown pigments)
- AMelanin
- BLipofuscin
- CHemosiderin
- DHematoidin
26What are lipofuscin positive for?
- ADiPAS
- BLuxol Fast blue
- CSchmorl's
- DArgyrophilic
27Schmorle's reaction demonstrates oxidising substances
- ATrue
- BFalse
28[blank_start]Melanin[blank_end] is Argentaffin and Schmorles positive, DiPAS negative and removed by H2O2 bleach. It is Long ZN negative, fat stain and Luxol Fast Blue negative. [blank_start]Lipofuscin[blank_end] on the other hand can be positive or negative Argentaffin and Schmorle's depending on timing, DiPAS positive, H2O2 bleach does not remove it, and positive for Long ZN, fat stains and Luxol fast blue.
- AMelanin
- BLipofuscin
- CHemosiderin
- DBile
- ELipofuscin
- Fmelanin
- Ghemosiderin
- Hbile
29Melanosis is a condition of excessive melanin production in skin or other tissue
- ATrue
- BFalse
30Formalin pigment is usually non-buffered formalin
- ATrue
- BFalse
31Malaria pigment is birefringent
- ATrue
- BFalse
32Mercury pigment is not birefringent
- ATrue
- BFalse
Information
- Description
- Quiz on Pigments in histopathology, created by Laura Currie on 28/10/2018.
- Author
- Laura Currie
- Language
- English
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