Derm

Question 1

6 types of arthritis associated with psoriasis

Answer 1

1. Monoarthiritis
2. Arthritis mutilans
3. Dactylitis
4. Distal asymmetrical oligoarthritis
5. Symmetrical polyarthritis (RhA)
6. Spondylitis

Question 2

Gluttate psoriasis is associated with what

Answer 2

Streptococcal inventions

Question 3

Tx for glutamate psoriasis

Answer 3

Resolves spontaneously usually

Question 4

Erythrodermic psoriasis

Triggers and complications

Answer 4

Triggers: drugs, infections, low calcium, withdrawal from steroids

Complications: dehydration, HF, hypothermia, infection, death!

Question 5

Erythrodermic Psoriasis Tx

Answer 5

Hospitalisation
IV fluids
Temperature regulation
Emollients

Question 6

Central ulceration

Answer 6

BCC

Question 7

Malignant melanoma diagnosis and staging

Answer 7

1. Dermatoscope
2. Excise with 2-3mm margins
3. Pathological diagnosis –> immunohistochemical stains

Staging: breslows thickness

Question 8

Keratinocytes proliferation

Answer 8

SCC

Question 9

In situs SSC

Answer 9

Bowens disease non malignant

Question 10

Small pimple, but with hard keratinous core

Answer 10

Keratocanthoma

This is v rapidly growing and regressing

Question 11

SSC

Answer 11

Sometimes have cutaneous horn. Main RF: solar keratinosis

Grow over a few weeks, may ulcerate and are tender to touch

Question 12

5 conditions with erythema nodosum

Answer 12

IBD
Sarcoidosis 
Bechets 
TB 
Strep throat

Question 13

Pyoderma gangrenosum is associated with

Answer 13

IBD

Question 14

Dermatitis herpetiformis is associated with and presents where on the body

Answer 14

• Coeliac

- buttock, elbows and lower back

Question 15

Causes of erythema multi forms

Answer 15

1. Infection - HSV, mycoplasma

2. Drugs -Abxs and NSAIDs

Question 16

What is erythema multiformes distribution? And what does it involve?

Answer 16

Starts at periphery to the trunks

Involves mucous membranes

Question 17

Ulcers in mouth and on lips

Fever and sore throat perceed this skin condition mainly caused due to drug reactions

Answer 17

Stevens Johnson syndrome

Epidermis separating from the dermis :(

Question 18

Which skin condition also presents with conjunctivitis in 30% of cases

Answer 18

Stevens Johnson syndrome

Question 19

Small vessel vascular is IgA

Preceded by streptococcal throat infection

Answer 19

HSP

Question 20

Triad for HSP

Answer 20

1. Abdo pain
2. Arthritis
3. Pupura

Question 21

40% of cases have a kidney involvement and haematuria with this condition.

Answer 21

HSP –> 1% of pts go on to develop CKD

Question 22

What is mollusc contaginosum caused by?

What does it look like?

Answer 22

Chicken pox (pox virus) 
Small, firm papule with dimple in the middle

Question 23

Erythematous, blanching, odematous, puritic lesions

Answer 23

Urticaria

Question 24

More common in kidney transplant patients

Answer 24

SCC due to increased immunosupression

SSC metastasize usually to lymph nodes unlike BCC

Question 25

Tx of SCC

Answer 25

1. Excision | 2. Where excision is not possible use radiotherapy

Question 26

Acanthos Nigrans Associations

Answer 26

This rash is associated with insulin resistance (diabetes), Cushing’s syndrome, acromegaly, polycystic ovarian syndrome, lymphomas and adenocarcinomas of the gastrointestinal tract.

Question 27

Skin Change Association in beast cancer

Answer 27

Paget's disease: scaly, | eczematous rash on the nipple

Question 28

Skin Change Association in pancreatic cancer

Answer 28

thrombophlebitis migrans- recurrent thrombophlebitis in different parts of the body

Question 29

Skin Change Association in oesophageal cancer

Answer 29

tylosis - hyperkeratosis of the palm and soles

Question 30

Skin Change Association in lung and breast cancer

Answer 30

dermatomyositis - purple rash on eyelids and scaly pink rash on knuckles

Question 31

Skin Change Association in glucagonoma

Answer 31

necrolytic migratory erythema - blistering | erythematous rash of buttocks, groin and legs

Question 32

Skin Change Associations in diabetes

Answer 32

- Diabetic dermopathy: presence of depressed pigmented scars in the shin. -necrobiosis lipoidica diabeticorum (shiny, atrophic yellowish–red plaques on the shins) -cheiroarthropathy (a sclerodermalike thickening of the skin of the hands in insulin-dependent diabetics), - granuloma annulare (small, papular lesions arranged in a ring and found on the back of the hands or feet) - acanthosis nigricans.

Question 33

Erythema ab igne

Answer 33

is a brown, lacy rash seen on skin that has been exposed to heat for long periods of time. It classically develops in hypothyroid patients who are cold and spend a lot of time in front of the fire. Excessive hot water bottle use can also result in the rash.

Question 34

plaque psoriasis is usually where

Answer 34

extensor surfaces

Question 35

you get localised psoriasis where?

Answer 35

- scalp | - plantopalmar surfaces --> keratoderma can develop here (thickening of the skin)

Question 36

telangactesia and central ulceration

Answer 36

BCC - mutation in PTCH1

Question 37

skin cancer in darker skin types

Answer 37

SCC

Question 38

what is a sebaceous cyst

Answer 38

cyst from a blocked hair follicle