Fundamentals and Foundations in Dermatology – Quiz

Vishal Gaurav

doi:10.25259/IJPGD_65_2024

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doi:

10.25259/IJPGD_65_2024

Fundamentals and Foundations in Dermatology – Quiz

Vishal Gaurav¹

1Department of Dermatology and Venereology, Maulana Azad Medical College, New Delhi, India.

*Corresponding author: Vishal Gaurav, Department of Dermatology and Venereology, Maulana Azad Medical College, New Delhi, India. mevishalgaurav@gmail.com

Received: 2024-04-30, Accepted: 2024-07-13, Epub ahead of print: 2024-09-09,

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This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, transform, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

How to cite this article: Gaurav V. Fundamentals and Foundations in Dermatology – Quiz. Indian J Postgrad Dermatol. doi: 10.25259/IJPGD_65_2024

QUESTIONS

Pertinax bodies are seen inside
1. Keratinocytes
2. Onychocytes
3. Trichocytes
4. Koilocytes
Autotaxin plays an important role in itch associated with
1. Atopic dermatitis
2. Cholestasis
3. Uraemia
4. Amyloidosis
The fundamental three-dimensional structure of keratinocytes in the stratum corneum and stratum granulosum, as shown by scanning electron microscopy and immunofluorescent microscopy, is
1. Truncated octahedron
2. Icosahedron
3. Triacontahedron
4. Tetrakaidecahedron
The type II Keratin expressed in hair matrix is
1. K75
2. K76
3. K85
4. K86
The ‘perivascular extravasation unit’ is located around
1. Precapillary arterioles
2. Capillaries
3. Post-capillary venules
4. Papillary loops
The microbiome of antecubital fossa in healthy individuals is formed majorly by
1. Malassezia and Actinobacteria
2. Malassezia and Proteobacteria
3. Ascomycetes and Bacteroidetes
4. Ascomycetes and Firmicutes
All are X-linked dominant disorders except:
1. Conradi-Hunermann-Happle syndrome
2. Incontinentia pigmenti
3. Focal dermal hypoplasia
4. Wiskott–Aldrich syndrome
All the following transcription factors are important for development, migration and survival of melanocytes except
1. MITF
2. KIT
3. SOX10
4. PAX3
The most common cyclobutene pyrimidine dimer (CPD) responsible for ultraviolet (UV-B) induced carcinogenesis is
1. CC-CPD
2. CT-CPD
3. TC-CPD
4. TT-CPD
The resident memory CD8+ T-cells reside in
1. Epidermis
2. Papillary dermis
3. Reticular dermis
4. Hypodermis
The central regulator of epithelial identity is
1. Beta-catenin
2. p63
3. BMP
4. SHH
Granular keratinocytes are defective in
1. Epidermolytic hyperkeratosis
2. Ichthyosis bullosa of Siemens
3. Ichthyosis hystrix
4. Epidermolysis bullosa simplex
Which of the following has the least contribution to the total skin surface lipids?
1. Triglycerides
2. Wax esters
3. Squalene
4. Cholesterol
Which of the following quality reporting tools is not used for systematic reviews/meta-analysis?
1. AMSTAR
2. OCEBM
3. PRISMA
4. QUOROM
The effectiveness of an intervention is measured by all except:
1. Explanatory studies
2. Pragmatic studies
3. Large simple studies
4. Peto studies
TGF-beta can be upregulated by all except
1. TNF-alpha
2. UV-B
3. Lipopolysaccharide
4. Retinoic acid
The number of pathophysiological reactive units in the skin are
1. 1
2. 2
3. 3
4. 4
The minimum punch size required for biopsy in a suspected case of panniculitis is
1. 4
2. 5
3. 6
4. 7
Which of the following is not a constituent of Michel’s medium?
1. Ammonium sulphate
2. N-ethyl maleimide
3. p-ethyl maleimide
4. Magnesium sulphate
The level of split in friction blister is
1. Granular layer
2. Spinous layer
3. Suprabasal
4. Subepidermal
Depending on the anatomic component(s) primarily involved, nodules are of
1. 2 types
2. 3 types
3. 4 types
4. 5 types
Who described the basic morphological terms for fundamental skin lesions?
1. Robert Willian
2. Thomas Bateman
3. Daniel Turner
4. Louis Alibert
The initial molecules to reach the viable skin layers following the application of a topical drug formulation diffuse through
1. Transcellular pathway
2. Intercellular pathway
3. Follicular pathway
4. Eccrine pathway
Senear-Caro ridge is seen in
1. Psoriasis
2. Lichen planus
3. Palmoplantar keratoderma
4. Porokeratosis
In which form of teledermatology, the primary healthcare provider communicates with a dermatologist?
1. Primary
2. Secondary
3. Tertiary
4. Patient assisted
Fluorescence-advanced videodermatoscopy has a wavelength of
1. 364 nm
2. 400 nm
3. 405 nm
4. 464 nm
The sweat gland placodes are formed at what gestational age (in weeks)?
1. 9
2. 10
3. 12
4. 14
The major protein in stratum corneum is
1. Filaggrin
2. Involucrin
3. Loricrin
4. Envoplakin
Identify the Noyes–Whitney equation
1. kp = D*Kse/v/h
2. log kp = −2.7+0.71*log P–0.0061*MW
3. Jmax = kp * Cv,sat
4. dC/dt = D*A*Kw/o (Cs–Cb)/v*h
Cells within the Huxley layer that extend through the Henle layer and attach directly to the companion layer are referred to as
1. Fluegelzellen or wing cells
2. Tadpole cells
3. Brush cells
4. Lozenge cells

ANSWERS

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Ethical approval

Institutional Review Board approval is not required.

Declaration of patient consent

Patient’s consent not required as there are no patients in this study.

Conflicts of interest

There are no conflicts of interest.

Use of artificial intelligence (AI)-assisted technology for manuscript preparation

The author confirms that there was no use of artificial intelligence (AI)-assisted technology for assisting in the writing or editing of the manuscript and no images were manipulated using AI.

Financial support and sponsorship

Nil.

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