Dermatology Quiz

A child with dystrophic changes of the great toenails

Figure.
Figure. Lateral deviation of the left great toenail (case patient). Note the absence of nail changes to the adjacent toenails.

A 15-month-old boy presents with dystrophic changes of his great toenails.

Pruritic papules in a 10-month-old boy

Figure.
Figure. Crusted erythematous papules and pustules on the face and arm (case patient).

A 10-month-old boy presents with a six-week history of a pruritic papules.

Painful ulceration with necrosis on a finger

Fig 1.
Figure 1. Distal ulceration of the right ring finger with necrotic eschar, extending to the proximal phalanx on the dorsal surface. The ulceration extends to the metacarpophalangeal joint on the palmar surface (not shown).

A 38-year-old man presents with painful ulceration of his finger.

Red-pink papules around a scar on the eyebrow

Fig 1.
Figure 1. Scattered lesions on the patient’s eyebrow. The lesions started to appear four weeks after excision of a pyogenic granuloma.

A 55-year-old man presents with multiple smooth red-pink papules on his eyebrow.

An area of cutaneous atrophy on the abdomen

Fig 1.
Figure 1. The localised depression of the skin on the left lower quadrant of the abdomen. A continuous glucose monitoring device is located in the hypogastric region.

A 14-year-old girl presents with an area of cutaneous atrophy on her abdomen.

Diffuse linear streaks on the trunk and limbs

Fig 1a.

A 65-year-old man presents with a rash of diffuse linear streaks.

A rapidly growing nodule on the scalp

Fig 1a.
Figure 1a. The lesion on the patient’s scalp. Actinic damage is noted on the surrounding skin.

An 80-year-old man presents with a rapidly growing nodule on his scalp.

New symmetrical hyperpigmented patches of skin

A 52-year-old man presents with hyperpigmented skin on his hands, arms and legs.

A photodistributed rash and muscle weakness

Fig 1a.
Figure 1a. Erythematous plaques overlying the metacarpophalangeal joints (case patient).

A 52-year-old man presents with a photodistributed rash and pruritic papules on his hands and elbows.

An acute generalised blistering eruption

Figure 1a. Case patient. Crusted lesions on the posterior trunk.

A 54-year-old woman presents with an acute blistering eruption.

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