KLINIKFUCHS › Spot-diagnosis quiz › Vessels, legs & moreDermatology spot-diagnosis quiz: Vessels, legs & more
Leg ulcers, venous insufficiency, lymphoedema, purpura and other spot diagnoses – 23 real clinical images from Wikimedia Commons. Pick the best diagnosis for each case; the answer links to the knowledge base where available.
Correct: 0 of 0 answered · 23 cases
Case 1 of 23
James Heilman, MD, CC BY-SA 3.0, via Wikimedia Commons · CC BY-SA 3.0 · Source Which diagnosis fits best?
Erythema perstans faciei Erythema ab igne Lupus erythematosus (butterfly rash) Ashy dermatosis (= erythema dyschromicum perstans)
Answer: Erythema ab igne · More on Erythema ab igne in the knowledge base →
Case 2 of 23
డా. గన్నవరపు నరసింహమూర్తి, via Wikimedia Commons · CC0 · Source Which diagnosis fits best?
Antiphospholipid syndrome Livedo reticularis Polyarteritis nodosa Cutis laxa
Answer: Livedo reticularis
Case 3 of 23
Niklas D, CC BY-SA 3.0, via Wikimedia Commons · CC BY-SA 3.0 · Source Which diagnosis fits best?
Livedo reticularis Erythromelalgia Systemic sclerosis Raynaud phenomenon
Answer: Raynaud phenomenon
Case 4 of 23
José Reynaldo da Fonseca, „Púrpura Senil 300413 REFON 1 WP", CC BY-SA 3.0, via Wikimedia Commons · CC BY-SA 3.0 · Source Which diagnosis fits best?
Warfarin necrosis Senile purpura (actinic purpura) Stasis purpura Pigmented purpuric lichenoid dermatosis (Gougerot-Blum 1925)
Answer: Senile purpura (actinic purpura)
Case 5 of 23
James Heilman, MD, CC BY-SA 3.0, via Wikimedia Commons · CC BY-SA 3.0 · Source Which diagnosis fits best?
Hypomelanosis of Ito Vitiligo Piebaldism Lichen sclerosus
Answer: Vitiligo · More on Vitiligo in the knowledge base →
Case 6 of 23
Bobjgalindo, „Pie diabetico", CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
Diabetic dermopathy Venous leg ulcer Arterial (ischaemic) ulcer Peripheral arterial disease
Answer: Arterial (ischaemic) ulcer
Case 7 of 23
Narraburra, „Gangrene toes (1)", CC0, via Wikimedia Commons · CC0 · Source Which diagnosis fits best?
Arterial (ischaemic) ulcer Necrotising fasciitis Peripheral arterial disease Martorell ulcer
Answer: Peripheral arterial disease
Case 8 of 23
Abdullah Sarhan, „Chronisch-venöse Insuffizienz Stadium (III)", CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
Chronic venous insufficiency stage III Venous leg ulcer Arterial (ischaemic) ulcer Erysipelas
Answer: Chronic venous insufficiency stage III
Case 9 of 23
Abate, Aroucha, Nóbrega et al. (2025), „Cutaneous manifestations of diabetes mellitus: a narrative review", CC BY 4.0, via Wikimedia Commons · CC BY 4.0 · Source Which diagnosis fits best?
Diabetic dermopathy Arterial (ischaemic) ulcer Necrobiosis lipoidica Martorell ulcer
Answer: Diabetic dermopathy
Case 10 of 23
Intermedichbo (Milorad Dimić, MD), „Diabetic Wound 121.jpg", CC BY-SA 3.0 rs, via Wikimedia Commons · CC BY-SA 3.0 rs · Source Which diagnosis fits best?
Arterial (ischaemic) ulcer Venous leg ulcer Malum perforans (neuropathic foot ulcer) Martorell ulcer
Answer: Malum perforans (neuropathic foot ulcer)
Case 11 of 23
Winky (Oxford, UK), „Frostbitten hands", CC BY 2.0, via Wikimedia Commons · CC BY 2.0 · Source Which diagnosis fits best?
Frostbite Necrotising fasciitis Pyoderma gangrenosum Erysipelas
Answer: Frostbite
Case 12 of 23
Chainwit., „Tophaceous gout of Lt MTP joint, elder female patient, Thailand", CC BY 4.0, via Wikimedia Commons · CC BY 4.0 · Source Which diagnosis fits best?
Gouty tophus Sebaceous hyperplasia Epidermoid cyst Rheumatoid nodules
Answer: Gouty tophus
Case 13 of 23
Gzzz, CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
Seborrhoeic dermatitis Pityriasis rubra pilaris Psoriasis vulgaris (plaque psoriasis) Ichthyosis
Answer: Ichthyosis
Case 14 of 23
Sapp, via Wikimedia Commons · Public Domain · Source Which diagnosis fits best?
Chilblains (perniones) Erythema ab igne Erythema nodosum Acrodermatitis enteropathica (zinc deficiency)
Answer: Chilblains (perniones)
Case 15 of 23
James Heilman, MD, „Petechia lower leg.jpg", CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
IgA vasculitis Petechiae in immune thrombocytopenia (platelets 3/nl) Pigmented purpuric lichenoid dermatosis (Gougerot-Blum 1925) Stasis purpura
Answer: Petechiae in immune thrombocytopenia (platelets 3/nl)
Case 16 of 23
James Heilman, MD, „PCD2016", CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
Deep vein thrombosis Cellulitis Phlegmasia cerulea dolens Lymphoedema of the right leg after recurrent erysipelas
Answer: Phlegmasia cerulea dolens
Case 17 of 23
James Heilman, MD, „Chronicvenousinsufficiency.jpg", CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
Truncal varicosis Chronic venous insufficiency (Widmer stage II) Atrophie blanche Corona phlebectatica paraplantaris
Answer: Chronic venous insufficiency (Widmer stage II)
Case 18 of 23
self (Commons uploader), „Leg Before 1", Public Domain, via Wikimedia Commons · Public domain · Source Which diagnosis fits best?
Truncal varicosis Chronic venous insufficiency (Widmer stage II) Telangiectasias (spider veins) and reticular veins Purpura jaune d’ocre
Answer: Truncal varicosis
Case 19 of 23
Gusini1000, „Venous Ulcer", CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
Diabetic dermopathy Arterial (ischaemic) ulcer Venous leg ulcer Necrotising fasciitis
Answer: Venous leg ulcer
Case 20 of 23
Themidget17, „Second degree burn after 2 days.JPG", CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
Second-degree burn (superficial partial-thickness, grade 2a) Sunburn Bullous pemphigoid Contact dermatitis
Answer: Second-degree burn (superficial partial-thickness, grade 2a)
Case 21 of 23
PharmaMS, CC BY-SA 3.0, via Wikimedia Commons · CC BY-SA 3.0 · Source Which diagnosis fits best?
Erythromelalgia Raynaud phenomenon Erythema nodosum Angioedema
Answer: Erythromelalgia · More on Erythromelalgia in the knowledge base →
Case 22 of 23
Doc James, „Mastocytosis2019", CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source Which diagnosis fits best?
Pityriasis rosea Urticaria pigmentosa Mycosis fungoides Atopic dermatitis
Answer: Urticaria pigmentosa · More on Mastocytosis (urticaria pigmentosa) in the knowledge base →
Case 23 of 23
Ytrottier, „Purpura annularis telangiectodes", CC BY-SA 3.0, via Wikimedia Commons · CC BY-SA 3.0 · Source Which diagnosis fits best?
Purpura annularis telangiectodes (Majocchi) Granuloma annulare Mycosis fungoides Schamberg disease (progressive pigmented purpuric dermatosis)
Answer: Purpura annularis telangiectodes (Majocchi)
Learning quiz for medical education. Does not replace a clinical examination or an individual diagnosis. Images: Wikimedia Commons, author and licence below each image; resized for the web.
