A 36-year-old man presents with recurrent, painful ulcers on his lips and mobile oral mucosa. What’s the diagnosis?

A 39-year-old man presented with a longstanding, widespread, itchy, brown pigmentation with a rippled pattern on his trunk and limbs. What’s the diagnosis?

A 33-year-old man presents with a large area of hair loss and damaged hair on his scalp. What’s the diagnosis?

A 33-year-old woman presents with a 12-month history of an asymmetrical nonscarring alopecia. What’s the diagnosis?

A 37-year-old man with diabetes presents with a long history of progressive swelling of the upper body. What’s the diagnosis?

A 55-year-old woman presents with an asymptomatic red nodule present for eight months on her nose. What’s the diagnosis?

A 57-year-old woman presents with waxy infiltrated plaques on her legs and feet. Biopsy revealed diffuse dermal mucinosis. What’s the diagnosis?

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

A 55-year-old woman presents with multiple plaster-like keratoses on her limbs. What’s the diagnosis?

A man presents with a blister on his index finger which has been present for six months. What’s the diagnosis?

A 42-year-old man presented with an enlarging pigmented lesion on the sole of his foot. What’s the diagnosis?

A 32-year-old man presents with large, violaceous cobblestone plaques on his legs. What’s the diagnosis?

An elderly man presents with progressive asymptomatic erythema and oedema on one side of his face over a 10-month period. What’s the diagnosis?

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

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

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. What’s the diagnosis?

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

A 68-year-old man presented with asymptomatic progressive pigmentation, confined to the sun-exposed sites of his face and hands. Details of his drug history plus a skin biopsy with UV light microscopy revealed the diagnosis. What’s the diagnosis?

A 43-year-old man presented with pruritic, round, crusted lesions on his limbs. The size of the lesions varied, and there was a vesicular border. What’s the diagnosis?

A 32-year-old man presents with persistent and numerous reddish-brown spots on his limbs and trunk. The lesions are stable, but occasionally there is an urticarial reaction when they are rubbed. A skin biopsy confirmed the diagnosis. What’s the diagnosis?

A middle-aged woman presents with a recent history of tender annular and bow-shaped pustular lesions on her face, neck, and upper limbs. What’s the diagnosis?

A 38-year-old man presents with a smooth, shiny and well demarcated pearly nodule on his upper back. The nodule is asymptomatic and of unknown duration. What’s the diagnosis?

A 35-year-old woman presents with erythematous lesions on her upper limbs and trunk shortly after taking antibiotics for a urinary tract infection. What’s the diagnosis?

A 42-year-old woman presents with progressive yellow–brown pigmentation associated with nonpalpable purpura over her shins. What’s the diagnosis?

A 59-year-old woman with chronic renal failure presents with a recent history of multiple progressive, painful ulcers over the lower limbs. What’s the diagnosis?