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They usually occur just under the skin, but occasionally may be deeper. [1] Most are less than 5 cm (2.0 in) in size. [2] Common locations include upper back, shoulders, and abdomen. [4] It is possible to have several lipomas. [3] The cause is generally unclear. [1] Risk factors include family history, obesity, and lack of exercise.
Nodules are small firm lumps usually greater than 1 cm in diameter, found in skin and other organs. [1] [2] If filled with fluid they are usually softer and referred to as cysts. [2] Smaller (less than 0.5 cm) raised soft tissue bumps may be termed papules. [3]
Less than 5% of stomach cancers occur in people under 40 years of age, with 81.1% of that 5% in the age-group of 30 to 39 and 18.9% in the age-group of 20 to 29. [102] In 2014, stomach cancer resulted in 0.61% of deaths (13,303 cases) in the United States. [103] In China, stomach cancer accounted for 3.56% of all deaths (324,439 cases).
The stomach is an organ of the Gastrointestinal tract that sits in the abdomen. [1] Tumors of the stomach are known as gastric tumors, and can be either benign or malignant (gastric cancer). These tumors arise from the cells of the gastric mucosa which lines the stomach. Typically, most gastric tumors are cancerous and not detected until a ...
Desmoplastic small-round-cell tumor (DSRCT) is an aggressive and rare cancer that primarily occurs as masses in the abdomen. [4] Other areas affected may include the lymph nodes, the lining of the abdomen, diaphragm, spleen, liver, chest wall, skull, spinal cord, large intestine, small intestine, bladder, brain, lungs, testicles, ovaries, and the pelvis.
Angiolipoma is a subcutaneous nodule with vascular structure, having all other features of a typical lipoma. They are commonly painful. [1]: 624 [2] Angiolipomas manifest as multiple painful subcutaneous nodules commonly on the upper limbs. The can occur sporadically, with a family history or after trauma.
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Adenolipomas are usually asymptomatic, soft nodules that aren't tender, and are slow-growing. [3] In the case of thyroid adenolipomas, breathing restrictions may be present. [ 4 ]