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The article provides information on Peptic Ulcers, an open sore in the mucous membrane of the alimentary tract. Peptic ulcer occurs in two places: in the lining of the stomach called gastric ulcer and or at the upper part of the small intestine called duodenum. The major cause of peptic ulcer is H. pylori which is a corkscrew shape that enables to penetrate the mucous layer of the stomach or duodenum and attaching itself to the lining. It also produces a number of toxins which causes inflammation.

The article presents various information related to Non-Hodgkin's lymphomas. Non-Hodgkin's lymphomas is a term for malignancies that range from very slow disease to extremely aggressive but curable conditions. There are more than 20 distinct types of non-Hodgkin's lymphomas. Most first arise in the lymph nodes, but about 20% to 30% of cases are now found outside the nodes, most often in the stomach, small intestine, skin, and brain. The malignancy can develop in people at all ages, including children, although the peak onset is between ages 45 and 60. The article also discusses risk factors associated with the disease.