Definition: The word "acinous" in medicine refers to a lesion that involves abnormal growths or changes in blood vessel walls, especially in the heart. This type of lesion can be caused by various factors such as an abnormal heart valve, genetic mutations, and certain medications. The detailed definition of "acinous" for a medical context would be: A common term used to describe lesions (inflammation or inflammation) that involve abnormal growths in the blood vessels of the heart. A condition where the blood vessels are thickened, narrowed or disorganized as a result of abnormal development or abnormalities within them. In anatomic terms, it is typically described as either "veinin" (a term for an abnormal vessel wall) or "fibromuscular innervation" (a condition in which there is excessive fibrous tissue around the heart's valves). These conditions can lead to symptoms such as chest pain, difficulty breathing, or a feeling of discomfort. In some cases, it may be necessary to surgically remove the lesion to treat the underlying pathology. A common surgical procedure used for these lesions includes an endovascular treatment that is done through catheter insertion into the heart's vessels and then guided by the use of percutaneous coronary intervention (PCI). This technique allows the removal of blood vessel abnormalities without the need for major surgery.

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