Skin lumps

Question 1

Appears as pimple or boil Solid core of keratin Proliferates up to 2cm ‘volcano’

Answer 1

Keratoacanthoma

Question 2

Enlarging scaly/crusted hard lump

May ulcerate

Tender and painful

Answer 2

Squamous cell carcinoma (SCC)

Question 3

Shiny, pearly nodule

Smooth surface

Central depression/ulceration

Rolled edges

Blood vessels on surface

Answer 3

Nodular basal cell carcinoma (BCC)

Question 4

Younger adults

Trunk and shoulders

Slightly scaly, irregular plaque

Thin, translucent rolled border

Multiple microerosions

Answer 4

Superficial basal cell carcinoma (BCC)

Question 5

Superficial melanoma ABCDE signs

Answer 5

Asymmetry of shape and colour

Border irregularity including smudgy or ill-defined margin

Colour variation and Change

Different (formerly diameter, worrying if >6mm)

Evolving

Question 6

Nodular melanoma EFG signs

Answer 6

Elevated

Firm to touch

Growing

Question 7

Vary from blue to gray hues

Deep in dermis

Spindle shaped cells

Answer 7

Blue naevus

are blue because they are deeper than normal naevi

Question 8

<20 year old patients

May mimic melanoma

Most are benign, some are malignant (often excised as a precaution)

Can be red or pigmented

Large spindle and/or epithelioid cells

Answer 8

Spitz naevus