swelling

…in which large, localized, painless swellings similar to hives appear under the skin. Angioedema may be acute or chronic, and the condition may be hereditary or acquired. The swelling is caused by massive accumulation of fluid (edema) following exposure to an allergen (a substance to which the person has been…

…ruptured small vessels and by swelling caused by the passage of fluid through the walls of damaged capillaries. As a rule, the hemorrhage ceases abruptly, the blood and fluid are absorbed within a few days, and the part is restored to normal. When larger vessels are injured, much more blood…

…first symptom may be a swelling of the lymph nodes that drain the affected area, particularly the small nodes above the collarbone in the neck; enlargement of the lymph nodes in these regions should always lead to a suspicion of intrathoracic disease. Not infrequently, the presenting symptom of a lung…