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Splenic infarction is a condition in which blood flow supply to the spleen is compromised, [1] leading to partial or complete infarction (tissue death due to oxygen shortage) in the organ. [2] Splenic infarction occurs when the splenic artery or one of its branches are occluded, for example by a blood clot .
Splenomegaly is an enlargement of the spleen. [1] The spleen usually lies in the left upper quadrant (LUQ) of the human abdomen.Splenomegaly is one of the four cardinal signs of hypersplenism which include: some reduction in number of circulating blood cells affecting granulocytes, erythrocytes or platelets in any combination; a compensatory proliferative response in the bone marrow; and the ...
Splenomegaly can result in hematologic disturbances and abdominal pain and can increase the risk for splenic rupture, which also causes spleen pain, from blunt trauma, resulting in life-threatening internal bleeding. [2] Many conditions can cause splenomegaly, such as various infections, liver disease, and cancer. [2]
Enlargement of the spleen is a requirement for the diagnosis of SMZL and is seen in nearly all people affected by SMZL (often without lymphadenopathy). [1] Aside from the uniform involvement of the spleen, the bone marrow is frequently positive in patients with SMZL displaying a nodular pattern with morphology similar to what is observed in the splenic hilar lymph nodes. [7]
The cell of origin for this disease is an immature cytotoxic T-cell clonally expressing the γδ T-cell receptor.The disease is seen more often in immunosuppressed recipients of solid organ transplants, an association that has led to the hypothesis that long-term immune stimulation in the setting of immunosuppression is the causative agent.
Symptoms include abdominal pain, bone pain, and peptic ulcer which are more prevalent than in other subtypes of acute myeloid leukemia. These former symptoms are due to release of a substance called histamine from neoplastic mast cells. [5] Enlargement of the liver and spleen, or hepatosplenomegaly is characteristic. [6]
Systemic symptoms such as fever, night sweats, and weight loss are known as B symptoms; thus, presence of these indicate that the person's stage is, for example, 2B instead of 2A. [15] Splenomegaly: Enlargement of the spleen is often present in people with Hodgkin lymphoma. The enlargement is seldom massive, and the size of the spleen may ...