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Lymphoma

Lymphoma is a type of cancer involving cells of the immune system, called lymphocytes. Just as cancer represents many different diseases, lymphoma represents many different cancers of lymphocytes - about 35 different subtypes, in fact.   Lymphoma is a group of cancers that affect the cells that play a role in the immune system and ...

Measles

Measles is best known for causing a rash in childhood, but measles can affect other parts of the body and sometimes occurs in adults. Vaccination has significantly reduced the number of cases in the United States, although isolated outbreaks continue to occur.   There are two types of measles, each caused by a different virus. ...

Ménière Disease

Ménière disease is a syndrome in which you experience episodes of spinningvertigo (sense of the room spinning), hearing loss, and tinnitus (ringing in the ear). Between the unpredictable attacks, you usually do not have any problems or symptoms of the disease.   Ménière disease was first described in 1861 ...

Mumps

Mumps is a disease, usually of children, caused by a virus. With mumps, your salivary glands swell. Specifically, these are the parotid glands, and they are located below and in front of each ear.   The virus is spread by direct contact with an infected person's sneeze or cough. Humans are the only known natural hosts. The ...

Necrotizing Fasciitis

Necrotizing fasciitis is a term that describes a disease condition of rapidly spreading infection, usually located in fascial planes of connective tissue that results in tissue necrosis (dead and damaged tissue). The disease occurs infrequently, but it can occur in almost any area of the body.   Although many cases have been caused ...

Neuropathy

Neuropathy is a general term that refers to diseases or malfunctions of the nerves. Any nerves at any location in the body can be damaged from injury or disease. Neuropathy is often classified according to the types or location of nerves that are affected. Neuropathy can also be classified according to the disease causing it. For example, ...

Nightmares

Nightmares refer to complex dreams that cause high levels of anxiety or terror. In general, the content of nightmares revolves around imminent harm being caused to the individual (e.g., being chased, threatened, injured, etc.). When nightmares occur as a part of posttraumatic stress disorder (PTSD), they tend to involve the original threatening ...

Norovirus Infection

Infection with norovirus causes a person to develop a rapid onset of nausea and vomiting, diarrhea, and occasionally stomach cramping (all symptoms ofgastroenteritis). In addition, the person may feel tired, have muscle aches, headache, and a low-grade fever (less than 101 F) with chills. The symptoms last about one to two days. Although no ...

Oral Cancer

Oral cancer is part of a group of cancers called head and neck cancers. Oral cancer can develop in any part of the oral cavity or oropharynx. Most oral cancers begin in the tongue and in the floor of the mouth. Almost all oral cancers begin in the flat cells (squamous cells) that cover the surfaces of the mouth, tongue, and lips. These cancers ...

Osteopenia

Osteopenia is a bone condition characterized by a decreased density of bone, which leads to bone weakening and an increased risk of breaking a bone (fracture). Osteopenia and osteoporosis are related conditions. In osteopenia, however, the bone loss is not as severe as in osteoporosis.   That means someone with osteopenia is more ...

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