2017年8月14日 · A bruise, also known as ecchymosis or a contusion, occurs when small blood vessels (capillaries) under the skin bleed, while the overlying skin remains intact. The injury …

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What is senile purpura? Senile purpura is a common, benign condition characterised by the recurrent formation of purple ecchymoses (bruises) on the extensor surfaces of forearms …

Achenbach syndrome is a painful subcutaneous bruise resulting from damage to small veins in a finger, which causes it to swell and turn blue. It can be treated by cooling and avoiding triggers.

Cellulitis is a common bacterial skin infection. It can result in localised redness, pain, swelling, and systemic symptoms - see images below. Without treatment, cellulitis can be life-threatening.

What is the differential diagnosis for subungual haemorrhage? The differential diagnoses to consider for nail pigmentation include:

Umbilical ecchymosis (Cullen sign) in haemorrhagic pancreatitis, ruptured ectopic pregnancy or any cause of retroperitoneal bleeding; Primary systemic amyloidosis; Crohn disease; Radial …

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This quiz tests your ability to recognise different causes of purpura. Purpura is due to haemorrhage from small blood vessels, and there is as wide differential diagnosis.

Angiosarcoma usually arises on the head and neck, or arise in areas of chronic lymphoedema such as after mastectomy. It presents as an advancing area of purpura and ecchymosis, …