The spleen is a key lymphatic organ located in the left upper abdomen, playing essential roles in immunity and blood filtration. Spleen volume, which can vary significantly between individuals and under different physiological and pathological conditions, is a crucial indicator of your overall health and functional status.
Spleen volume
Spleen volume is an important marker of the health and functional status of the organ. Its variation may reflect both normal physiologic adaptations and pathologic responses to various conditions. Assessment of splenic volume, along with other clinical parameters, is crucial for the diagnosis and management of multiple diseases.
One of the primary functions of the spleen is blood filtration, where it removes aged or damaged red blood cells and other foreign particles. In addition, it plays a vital role in the immune response, producing lymphocytes and antibodies to fight infection. The spleen also acts as a reservoir of blood, including platelets, which it can release in the event of hemorrhage, and contributes to the recycling of iron from the breakdown of old red blood cells.
Enlargement of the spleen, known as splenomegaly, may be indicative of various medical conditions. Viral infections such as infectious mononucleosis, bacterial infections such as tuberculosis, or parasitic infections such as malaria can cause splenomegaly. Hematologic disorders, such as leukemia, lymphomas and hemolytic anemias, can also cause splenomegaly due to increased destruction of blood cells or proliferation of malignant cells in the spleen. Likewise, metabolic disorders such as Gaucher disease and Niemann-Pick disease, which affect lipid metabolism, can cause accumulation of substances in the spleen, leading it to increase in size.
Spleen volume may also increase temporarily in response to physiological factors such as intense exercise, due to the increased demand for blood filtration and immune response. Variations in splenic volume may also depend on age and sex, being generally greater in men than in women, and may be affected by nutritional status and chronic exposure to hypoxia in high altitude areas.
Number of observed variants
13.5 million variants
Number of risk loci
34 loci
Genes analyzed
Bibliography
Liu Y., Basty N., et al. Genetic architecture of 11 organ traits derived from abdominal MRI using deep learning. Elife, 15 Jun 2021, 10:e65554.
Salah M.F., Naser A.M., et al. Sonographic measurement of splenic size and its correlation with body parameters. Med Int (Lond). 2023 Jan-Feb; 3(1): 7.
Aldulaimi S. et Mendez A. Splenomegaly: Diagnosis and Management in Adults. Am Fam Physician. 2021;104(3):271-276.
