Persistent crusted yellow-red facial papules
Date posted: 18/05/2012
A 35-year-old man presents with persistent, crusted papules concentrated over his central face, particularly around his eyes. Skin biopsy showed dermal granulomas.
What is the differential diagnosis?
Widespread erythema with pustules
Date posted: 11/05/2012
After taking a cough mixture containing pholcodine, a 72-year-old man develops a widespread erythema associated with small pustules.
What is the likely diagnosis and the differential drug-related eruptions?
Contagious keratotic nodules
Date posted: 20/04/2012
A 32-year-old woman presents with multiple contagious keratotic nodules on her feet and hands.
What is this condition and what are the differential diagnoses? How should it be treated?
Progressive, diffuse blue-black pigmentation
Date posted: 23/03/2012
A 55-year-old man with a history of severe rosacea controlled by long term minocycline progressively developed a blue-black pigmentation on his face, hands and limbs.
What is the differential diagnosis and management in this case?
Nodular lesion with pustules on the index finger
Date posted: 23/12/2011
A 23-year-old tropical fish fancier presents with a nodular lesion on his finger which has not responded to antibiotics.
What is this lesion and how should it be treated?
Multiple scrotal nodules with a chalky discharge
Date posted: 16/12/2011
A 45-year-old man presents with multiple nodules discharging a chalky substance on his scrotum.
What is the diagnosis of these nodules and how should they be treated?
Recurrent painful mouth ulcers
Date posted: 16/12/2011
A 36-year-old man presents with recurrent, painful ulcers on his lips and mobile oral mucosa.
What are these lesions and their differential diagnosis and treatment?
Translucent, reddish-blue nodule on the lip
Date posted: 09/12/2011
A 28-year-old man presents with an asymptomatic reddish-blue translucent nodule on his lip.
What is the differential diagnosis and how should the lesion be treated?
Itchy, rippled skin pigmentation
Date posted: 25/11/2011
A 39-year-old man presented with a longstanding, widespread, itchy, brown pigmentation with a rippled pattern on his trunk and limbs.
What is this condition and how should it be treated?
Alopecia with dull, broken hairs
Date posted: 18/11/2011
A 33-year-old man presents with a large area of hair loss and damaged hair on his scalp.
What is the differential diagnosis and what tests and treatment should be selected?
Alopecia with broken hairs
Date posted: 11/11/2011
A 33-year-old woman presents with a 12-month history of an asymmetrical nonscarring alopecia.
What is the differential diagnosis and how should it be treated?
Progressive infiltration of the upper body
Date posted: 04/11/2011
A 37-year-old man with diabetes presents with a long history of progressive swelling of the upper body.
What is the differential diagnosis?
A persistent red nodule on the nose
Date posted: 28/10/2011
A 55-year-old woman presents with an asymptomatic red nodule present for eight months on her nose.
What conditions should be considered?
Infiltrated pretibial plaques
Date posted: 14/10/2011
A 57-year-old woman presents with waxy infiltrated plaques on her legs and feet. Biopsy revealed diffuse dermal mucinosis.
What is the cause of these lesions and how should they be treated?
Irritable rash in the beard area
Date posted: 07/10/2011
A 37-year-old man presented with a papular rash and irritated skin in the beard area that had made shaving difficult.
What could be the cause?
Plaster-like keratoses on the lower limbs
Date posted: 30/09/2011
A 55-year-old woman presents with multiple plaster-like keratoses on her limbs.
What are these lesions and how can they be treated?
Translucent blister on the finger
Date posted: 23/09/2011
A man presents with a blister on his index finger which has been present for six months.
What could this blister be and how should it be treated?
Enlarging pigmented lesion on the foot
Date posted: 16/09/2011
A 42-year-old man presented with an enlarging pigmented lesion on the sole of his foot.
What differential diagnoses would you consider?
Cobblestone plaques on the legs
Date posted: 09/09/2011
A 32-year-old man presents with large, violaceous cobblestone plaques on his legs.
What is the cause of these lesions?
Progressive dusky facial erythema
Date posted: 02/09/2011
An elderly man presents with progressive asymptomatic erythema and oedema on one side of his face over a 10-month period.
What differential diagnoses would you consider and what is the next procedure?
Annular scaling lesions on the limbs
Date posted: 26/08/2011
A 75-year-old woman presented with multiple scaling annular lesions on the sun-exposed skin of her limbs.
What is the differential diagnosis and how should the condition be treated?
Pustules with scarring alopecia
Date posted: 19/08/2011
A 35-year-old man presents with multiple pustules and patchy alopecia on the occipital area of his scalp.
What is this condition and how can it be treated?
Asymptomatic annular lesions
Date posted: 12/08/2011
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 are these lesions and how would you treat them?
Widespread tense blisters
Date posted: 05/08/2011
A 52-year-old woman presents with widespread pruritic, tense blisters on her trunk and limbs. There are no mucous membrane lesions.
What are these blisters and how would you treat them?
Progressive facial slate-grey pigmentation
Date posted: 29/07/2011
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 are the differential diagnoses for this dusky drug induced pigmentation?
Itchy coin-shaped lesions
Date posted: 22/07/2011
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 are these lesions and how would you treat them?
Intermittently itchy reddish-brown spots
Date posted: 18/07/2011
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 are the differential diagnoses of this patient's lesions?
A pearly nodule on the back
Date posted: 08/07/2011
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 is this lesion?
Recurrent dusky skin lesions
Date posted: 01/07/2011
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 is this condition and how can it be treated?
Progressive pigmented purpura
Date posted: 24/06/2011
A 42-year-old woman presents with progressive yellow-brown pigmentation associated with nonpalpable purpura over her shins.
What is this skin disorder?
An acute pustulovesicular eruption
Date posted: 17/06/2011
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 is this skin disorder and how should it be treated?
Scarring alopecia with tufted folliculitis
Date posted: 10/06/2011
What is the diagnosis and how would you treat it?
Skin necrosis with vascular calcification
Date posted: 03/06/2011
A 59-year-old woman with chronic renal failure presents with a recent history of multiple progressive, painful ulcers over the lower limbs.
What is the correct diagnosis and how would you treat it?
Itchy papules on the trunk and limbs
Date posted: 21/02/2011
A 47-year-old woman developed persistent itchy papules on the trunk and limbs over a two-year period.
What are these lesions and how can they be treated?
