Derm Flashcards
Where is this on the body?
Sole of foot
Where is this on the body?
Abdominal skin
Where is this on the body?
Scalp
What is wrong with this?
lmao nothing :)
What disease is seen under histology here?
Psoriasis
Which layer of the skin is this?
Prickle cell layer
Look for the desmosomes attaching the larger polyhedral cells
What pathology is occuring in this picture?
Its a viral wart - HPV infection of keratinocytes
What kind of cell is the arrow pointing to?
Melanocyte
what pathology is seen here?
Angioma
What is the circular shaped cells seen here?
Pacinian corpurscles
What kind of gland is seen here?
A sebacaeous gland
What kind of gland is this?
Apocrine gland
What kind of gland is this?
An eccrine gland
When might you see this immunoflurescence?
Bullous pemhigoid - IgG along the DEJ
What word would you describe to explain the basic pathology here?
Papillomatosis
What two abnormalities is there present within the epidermis?
Spongiosis and inflammatory cell infiltrates
What is the underlying pathology here?
Scabies
What pathology is seen here?
Lichen planus
Can see:
- Irregular sawtooth acanthosis
- Hypergranulosis and orthohyperkeratosis
- Band-like upper dermal infiltrate of lymphocytes
- Basal damage with formation of cytoid bodies
End result seen in pemphigus vulgaris?
acantholysis
Where is IgG deposited in pemphigus?
Intradermal - still some hemidesmosomal attachments
What does IgG deposition look like in pemphigoid?
Linear
What pathology is going on here?
iDermatitis herpetiformis - papillary dermal abcesses seen (the thing that looks like a weird white flavoured loollipop)
Will get granular deposition of IgA
Whats the happs here?
Rosacea
Can see the follicular demodex mite in
And apparently perifollicular granulomas
Cause of this immunoflurensence
Seen in dermatitis herpetiformis
Granular deposition of IgA
Are there inflammatory infliltrates in all types of dermatitis?
No, inflammatory infiltrates are specific to eczema.
However, there is spongiosis found within all types of dermatitis.
What type of naevus is this and what age might it occur?
It is a junctional naevus - can see the cluster of melanocytes at the DEJ ready to move down
Present in childhood
What type of naevus is this and when might it occur?
soz cant find pic lol xx melanocytes present below the DEJ
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
Dysplastic naevus affects what layer of skin?
Dermis - does not affect epidermis like melanoma
What type of naevus is this?
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
What type of naevus is this?
This is a spitz naevus
Consists of spindle and epthoidal cells
Benign juvenille
What type of naevus is this?
Blue naevus
Can see rich dendritic spindle cells, it is entirely dermal
What type of cancer is this?
This is a superficial spreading melanoma commonly found on the trunk and legs
It is purely epidermal
Which type of melanoma is this?
This is a dermally invasive form of melanoma - VGP
Which type of melanoma is this?
This is a nodular melanoma, it is believed to be the most aggressive
