Doctor insights on:
Causes Of Bicep Tumor
If a lymph node in biceps has some cancer cells but the one in the armpit doesn't, is the tumor only in the lymphatic system or it could have spread?
"tumor" literally translates as "mass", so even a fresh bruise could be called a "tumor". Doctors use the term "neoplasm" (tranlates literally as new growth) to describe tumors that are abnormal growths of cells. These may be benign or malignant; "malignant" = cancer. In everyday usage, we use "tumor" ...Read more
What happen if there are cancer cells in a sentinel lymph node in the biceps but none in the armpit? The tumor started from a nevus on the arm.
Viruses: Most malignant transformations result from a 3 hit process that occurs over a period of time. One of the major hits is usually viral such as HPV in cervical and oral squamous Ca. The secondary viral hit is EBV causing telomerase activity to allow chromosome caps to remain. The third hit may be carcinogen or with skin, UV exposure. ...Read more
Over expression: A number of different malignancies have been associated with production of estrogen. Many are ovarian tumors such as granulosa cell tumors and thecomas. Estrogen-producing endometrioid adenocarcinoma resembling sex cord-stromal tumor of the ovary and Sertoli cell tumors of the testis,and adrenal tumors have also been reported to produce increased levels of estrogen. ...Read more
Genetic alterations.: Dfsp (dermtofibrosarcoma protruberans) is a malignancy that presents as nodular subcutaneous (under the skin) masses. Tumors are associated with specific abnormalities on chromosomes 22 & sometimes 17 that can trigger abnormal gene activity of a growth factor (pdgfb) that is fused to a collagen (connective tissue) gene, causing tumors. http://www.youtube.com/watch?v=fgmhw8iyrzy. ...Read more
Small adenoma can do: Pituitary adenomas can cause hormonal access like you are concerned about. They can start producing symptoms when they are quite small like the size of a beebe (5 mm to 10 mm). When left untreated they can grow up to 1-3 cm before there are local pressure symptoms like vision problems. ...Read more
Very rare: tumor induction of sciatic pain rare. In those cases it is usually metastatic cancer to the spine or dura catching L4,5, S1-3 posterior nerve roots that cause nerve compression. Almost all sciatic pain is compression of nerve roots by prolapsed disc. ...Read moreSee 2 more doctor answers
Are pituitary macroadenomas the only tumors that can cause vision problems or can microadenomas cause it too?
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