Q89.0: Congenital malformations of spleen

Congenital malformations of the spleen refer to structural abnormalities of the spleen that are present at birth. These abnormalities can occur as a result of improper development of the spleen during fetal growth and can present in various ways. Some of these malformations may result in an unusually big or small spleen, a missing spleen, or even the presence of several small spleens, also known as polysplenia. Some individuals may also have a spleen that is misplaced or located in an unusual position within the body, a condition known as wandering spleen. Symptoms may vary and can include abdominal pain, susceptibility to infections, and anemia. The specific cause of these malformations is often unknown, but they sometimes occur as part of a syndrome that affects multiple organs. Furthermore, the spleen's function, which includes filtering out bacteria and worn-out blood cells from the system, might be affected due to these malformations. Additionally affected systems could be the circulatory due to the spleen’s role in blood filtration.