Dermatology Quiz

Irritable rash in the beard area

Fig 1. Irritable rash
Figure 1. Irritated follicular papules on the cheek and neck.

A 37-year-old man presented with a papular rash and irritated skin in the beard area that had made shaving difficult.

Plaster-like keratoses on the lower limbs

Fig 1. Keratoses
Figure 1. Numerous grey to white keratoses on the lower limbs.

A 55-year-old woman presents with multiple plaster-like keratoses on her limbs.

Translucent blister on the finger

Fig 1. Translucent cyst
Figure 1. Translucent cyst proximal to the nail fold of the index finger.

A man presents with a blister on his index finger which has been present for six months.

Enlarging pigmented lesion on the foot

Fig 1. Tan patch
Figure 1. Mottled, tan-coloured patch on the sole of the foot.

A 42-year-old man presented with an enlarging pigmented lesion on the sole of his foot.

Cobblestone plaques on the legs

Fig 1. Violaceous plaques
Figure 1. Violaceous plaques on the back of the calves.

A 32-year-old man presents with large, violaceous cobblestone plaques on his legs.

Progressive dusky facial erythema

Fig 1. Dusky erythema
Figure 1. Dusky erythema and swelling on the face, ear and neck.

An elderly man presents with progressive asymptomatic erythema and oedema on one side of his face over a 10-month period.

Annular scaling lesions on the limbs

Fig 1. Annular scarring
Figure 1. Annular scaling and crusted lesions on the extensor surface of the arm.

A 75-year-old woman presented with multiple scaling annular lesions on the sun-exposed skin of her limbs.

Pustules with scarring alopecia

Fig 1. Follicular cysts
Figure 1. Multiple small follicular cysts, papules, pustules and patchy scarring on the occipital area.

A 35-year-old man presents with multiple pustules and patchy alopecia on the occipital area of his scalp.

Asymptomatic annular lesions

Fig 1. Annular plaques
Figure 1. Annular plaques on the patient’s hand.

A 52-year-old woman presents with a series of asymptomatic annular lesions, with no scaling, on her limbs. The lesions had gradually increased in number and size over 12 months.

Widespread tense blisters

Fig 1. Tense blisters
Figure 1. Tense blisters on the patient’s lower limb.

A 52-year-old woman presents with widespread pruritic, tense blisters on her trunk and limbs. There are no mucous membrane lesions.