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Paroxysmal hand hematoma, also known as Achenbach syndrome, is a skin condition characterized by spontaneous focal hemorrhage into the palm or the volar surface of a finger, which results in transitory localized pain, followed by rapid swelling and localized blueish discoloration.
The average size of these cysts is 2 centimetres (0.79 in), but excised cysts of more than 5 centimetres (2.0 in) have been reported. [6] The size of the cyst may vary over time. Between 50 and 70% of all masses on the hand and wrist are ganglion cysts. [7] [8]
Sweet syndrome (SS), or acute febrile neutrophilic dermatosis, [1] [2] is a skin disease characterized by the sudden onset of fever, an elevated white blood cell count, and tender, red, well-demarcated papules and plaques that show dense infiltrates by neutrophil granulocytes on histologic examination.
Around 2% of the general population has a lipoma. [2] These tumors can occur at any age, but are most common in middle age, often appearing in people from 40 to 60 years old. [27] Cutaneous lipomas are rare in children, but these tumors can occur as part of the inherited disease Bannayan-Zonana syndrome. [40] [41]
Chilblains, also known as pernio, is a medical condition in which damage occurs to capillary beds in the skin, most often in the hands or feet, when blood perfuses into the nearby tissue, resulting in redness, itching, inflammation, and possibly blisters.
Heberden's nodes are hard or bony swellings that can develop in the distal interphalangeal joints (DIP) (the joints closest to the end of the fingers and toes). [1] They are a sign of osteoarthritis and are caused by formation of osteophytes (calcific spurs) of the articular (joint) cartilage in response to repeated trauma at the joint.
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Gangrene toes in a diabetic. Gangrene is a type of tissue death caused by a lack of blood supply. [4] The feet and hands are most commonly affected. [1] If the gangrene is caused by an infectious agent, it may present with a fever or sepsis.