<p>A 54-year-old man presented with a longstanding, symmetrical, small, red papule on his thigh that had not grown and was asymptomatic.</p> What’s the diagnosis?

<p>A 58-year-old woman presents with atrophic and split fingernails, partially covered by a web of tissue.</p> What’s the diagnosis?

<p>A 53-year-old woman presents with crawling sensations and an excoriation on her forehead. She brings a sample of the ‘parasites’ she says she has extracted from the lesion.</p> What’s the diagnosis?

<p>A 29-year-old man presents with a persistent eroded and indurated plaque on his lower lip which has not responded to topical treatments.</p> What’s the diagnosis?

<p>A 24-year-old man presents with progressive loss of his beard hair in patches.</p> What’s the diagnosis?

<p>A 23-year-old tropical fish fancier presents with a nodular lesion on his finger which has not responded to antibiotics.</p> What’s the diagnosis?

<p>A 45-year-old man presents with multiple nodules discharging a chalky substance on his scrotum.</p> What’s the diagnosis?

<p>A 28-year-old man presents with an asymptomatic reddish-blue translucent nodule on his lip.</p> What’s the diagnosis?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

<p>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.</p> What’s the diagnosis?

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