Dermatology Quiz

Itchy, rippled skin pigmentation

Fig 1. Hyperpigmentation
Figure 1. Marked rippled hyperpigmentation over the upper back.

A 39-year-old man presented with a longstanding, widespread, itchy, brown pigmentation with a rippled pattern on his trunk and limbs.

Alopecia with dull, broken hairs

Fig 1. Diffuse alopecia
Figure 1. Large area of diffuse alopecia with dull, broken hairs.

A 33-year-old man presents with a large area of hair loss and damaged hair on his scalp.

Alopecia with broken hairs

Fig 1. Alopecia
Figure 1. Alopecia demonstrating irregular margins with partial regrowth and broken hairs of uneven length.

A 33-year-old woman presents with a 12-month history of an asymmetrical nonscarring alopecia.

Progressive infiltration of the upper body

Fig 1. Thickened skin
Figure 1. Grossly thickened skin producing coarse folds.

A 37-year-old man with diabetes presents with a long history of progressive swelling of the upper body.

A persistent red nodule on the nose

Fig 1. Nodule on nose
Figure 1. Erythematous nodule on the nose.

A 55-year-old woman presents with an asymptomatic red nodule present for eight months on her nose.

Infiltrated pretibial plaques

Fig 1. Pretibial skin
Figure 1. Waxy, infiltrated pretibial skin.

A 57-year-old woman presents with waxy infiltrated plaques on her legs and feet. Biopsy revealed diffuse dermal mucinosis.

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.