Derm

Question 1

Where is this on the body?

Answer 1

Sole of foot

Question 2

Where is this on the body?

Answer 2

Abdominal skin

Question 3

Where is this on the body?

Answer 3

Scalp

Question 4

What is wrong with this?

Answer 4

lmao nothing :)

Question 5

What disease is seen under histology here?

Answer 5

Psoriasis

Question 6

Which layer of the skin is this?

Answer 6

Prickle cell layer

Look for the desmosomes attaching the larger polyhedral cells

Question 7

What pathology is occuring in this picture?

Answer 7

Its a viral wart - HPV infection of keratinocytes

Question 8

What kind of cell is the arrow pointing to?

Answer 8

Melanocyte

Question 9

what pathology is seen here?

Answer 9

Angioma

Question 10

What is the circular shaped cells seen here?

Answer 10

Pacinian corpurscles

Question 11

What kind of gland is seen here?

Answer 11

A sebacaeous gland

Question 12

What kind of gland is this?

Answer 12

Apocrine gland

Question 13

What kind of gland is this?

Answer 13

An eccrine gland

Question 14

When might you see this immunoflurescence?

Answer 14

Bullous pemhigoid - IgG along the DEJ

Question 15

What word would you describe to explain the basic pathology here?

Answer 15

Papillomatosis

Question 16

What two abnormalities is there present within the epidermis?

Answer 16

Spongiosis and inflammatory cell infiltrates

Question 17

What is the underlying pathology here?

Answer 17

Scabies

Question 18

What pathology is seen here?

Answer 18

Lichen planus

Can see:

• Irregular sawtooth acanthosis
• Hypergranulosis and orthohyperkeratosis
• Band-like upper dermal infiltrate of lymphocytes
• Basal damage with formation of cytoid bodies

Question 19

End result seen in pemphigus vulgaris?

Answer 19

acantholysis

Question 20

Where is IgG deposited in pemphigus?

Answer 20

Intradermal - still some hemidesmosomal attachments

Question 21

What does IgG deposition look like in pemphigoid?

Answer 21

Linear

Question 22

What pathology is going on here?

Answer 22

iDermatitis herpetiformis - papillary dermal abcesses seen (the thing that looks like a weird white flavoured loollipop)

Will get granular deposition of IgA

Question 23

Whats the happs here?

Answer 23

Rosacea

Can see the follicular demodex mite in

And apparently perifollicular granulomas

Question 24

Cause of this immunoflurensence

Answer 24

Seen in dermatitis herpetiformis

Granular deposition of IgA

Question 25

Are there inflammatory infliltrates in all types of dermatitis?

Answer 25

No, inflammatory infiltrates are specific to eczema.

However, there is spongiosis found within all types of dermatitis.

Question 26

What type of naevus is this and what age might it occur?

Answer 26

It is a junctional naevus - can see the cluster of melanocytes at the DEJ ready to move down

Present in childhood

Question 27

What type of naevus is this and when might it occur?

soz cant find pic lol xx melanocytes present below the DEJ

Answer 27

This is intradermal naevus which occurs in adulthood

All the melanocytes which give it pigment are now resting in the dermis - ie all the little dark dots

Question 28

Dysplastic naevus affects what layer of skin?

Answer 28

Dermis - does not affect epidermis like melanoma

Question 29

What type of naevus is this?

Answer 29

This is a dysplastic naevus - there is apparently cellular atypia, can see some inflammatory cells and the clumps of melanocytes are localised to the dermis

Question 30

What type of naevus is this?

Answer 30

This is a spitz naevus

Consists of spindle and epthoidal cells

Benign juvenille

Question 31

What type of naevus is this?

Answer 31

Blue naevus

Can see rich dendritic spindle cells, it is entirely dermal

Question 32

What type of cancer is this?

Answer 32

This is a superficial spreading melanoma commonly found on the trunk and legs

It is purely epidermal

Question 33

Which type of melanoma is this?

Answer 33

This is a dermally invasive form of melanoma - VGP

Question 34

Which type of melanoma is this?

Answer 34

This is a nodular melanoma, it is believed to be the most aggressive