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The diameter can range from a few millimeters to more than 30 cm. Larger tumors usually cause symptoms in contrast to those found incidentally which tend to be smaller and have better prognosis. [ 4 ] [ 19 ] Large tumors tend to exhibit malignant behavior but small GISTs may also demonstrate clinically aggressive behavior.
Early pancreatic cancer does not tend to result in any symptoms, but when a tumor is advanced, a patient may experience severe pain in the upper abdomen, possibly radiating to the back. [8] Another symptom might be jaundice, a yellowing of the skin and eyes. [9] Pancreatic cancer has a poor prognosis, [2] with a five-year survival rate of
The prognosis for these types of tumors depends heavily on the size of the tumor and the rate of mitosis, however approximately 60 percent of GISTs are diagnosed as benign. [4] Surgery to remove the tumor is the primary treatment method, although imatinib, everolimus, and rapamycin may soon be approved as alternative treatment and management ...
Cancer of the stomach is difficult to cure unless it is found at an early stage (before it has begun to spread). Unfortunately, because early stomach cancer causes few symptoms, the disease is usually advanced when the diagnosis is made. [80] Treatment for stomach cancer may include surgery, [81] chemotherapy, [13] or radiation therapy. [82]
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.
According to the National Cancer Institute, prognosis is defined as the likely outcome of a disease OR, the chance of recovery or a recurrence. [164] This is an extremely difficult question when it comes to pheochromocytoma, and the answer depends on the patients genetic status, presence of metastatic disease, and the location of their primary ...
Distinguishing poorly differentiated gastric lymphoma from adenocarcinoma is essential because the prognosis and modalities of treatment differ significantly. Other lymphomas involving the stomach include mantle cell lymphoma and T-cell lymphomas which may be associated with enteropathy ; the latter usually occur in the small bowel but have ...
Stromal cells within the tumor microenvironment represent an important cellular component in cancer development, influencing tumor metabolism, growth, metastasis, immune evasion, and resistance to chemotherapy. These cells can originate from neighboring non-cancerous stromal cells or undergo transdifferentiation from tumor cells. Stromal cells ...