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Emergency medicine A hematoma , also spelled haematoma , or blood suffusion is a localized bleeding outside of blood vessels , due to either disease or trauma including injury or surgery [ 1 ] and may involve blood continuing to seep from broken capillaries .
An abdominal mass is any localized enlargement or swelling in the human abdomen.Depending on its location, the abdominal mass may be caused by an enlarged liver (hepatomegaly), enlarged spleen (splenomegaly), protruding kidney, a pancreatic mass, a retroperitoneal mass (a mass in the posterior of the peritoneum), an abdominal aortic aneurysm, or various tumours, such as those caused by ...
A breast mass, also known as a breast lump, is a localized swelling that feels different from the surrounding tissue. [1] Breast pain , nipple discharge , or skin changes may be present. [ 1 ] Concerning findings include masses that are hard, do not move easily, are of an irregular shape, or are firmly attached to surrounding tissue.
The process that occurs to form or produce a neoplasm is called neoplasia. The growth of a neoplasm is uncoordinated with that of the normal surrounding tissue, and persists in growing abnormally, even if the original trigger is removed. [3] [4] [5] This abnormal growth usually forms a mass, which may be called a tumour or tumor. [6]
Occasionally medical imaging or tissue biopsy is used to confirm the diagnosis. [1] Treatment is typically by observation or surgical removal. [1] Rarely, the condition may recur following removal, but this can generally be managed with repeat surgery. [1] They are not generally associated with a future risk of cancer. [1]
[2] [7] They form a subset of neoplasms. A neoplasm or tumor is a group of cells that have undergone unregulated growth and will often form a mass or lump, but may be distributed diffusely. [27] [28] All tumor cells show the six hallmarks of cancer. These characteristics are required to produce a malignant tumor. They include: [29]
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Fine-needle aspiration (FNA) is a diagnostic procedure used to investigate lumps or masses.In this technique, a thin (23–25 gauge (0.52 to 0.64 mm outer diameter)), hollow needle is inserted into the mass for sampling of cells that, after being stained, are examined under a microscope ().