#smooth muscle

• Adenomyoma — A benign tumor formation with a mixed structure, composed of epithelial glandular elements and smooth muscle tissue. This structural benign neoplasm is most frequently encountered in the uterus, where it is considered a localized form of adenomyosis, or in the gastrointestinal tract, manifesting through pelvic pain, abnormal bleeding, or compressive symptoms.
• Angiomyoma — A benign tumorous formation of a mixed nature, structurally composed of proliferating smooth muscle fibers and a well-defined, dense network of widened blood vessels. Clinically known also as vascular leiomyoma or angioleiomyoma, this histological lesion frequently develops within the deep dermis or subcutaneous tissue of the lower extremities in adults, manifesting as a small, firm nodule that is often painful to the touch or during temperature changes.
• Angiospasm — A sudden, temporary, and involuntary constriction of the smooth muscle fibers within a blood vessel wall, leading to a marked narrowing of the vascular lumen and a transient reduction in circulatory flow. This well-defined pathological structural phenomenon can affect the coronary arteries (causing Prinzmetal's angina), cerebral arteries, or peripheral vessels of the extremities, clinically manifesting as acute episodes of ischemic pain, localized pallor, and paresthesias.
• Angiospasmodic — Relating to angiospasm, having the property of causing a vascular spasm, or a medication / pharmacological substance designed to combat and relax spastic contractures of vessel walls. As a clinical descriptor or well-defined therapeutic agent, it acts directly on arterial smooth muscle to restore normal lumen caliber and improve blood perfusion in organs affected by ischemia.
• Angiospastic — Relating to angiospasm, belonging to it, or characterized by a marked tendency toward sudden, involuntary, and painful contraction of the smooth muscle within arterial walls. In a clinical and structural context, this descriptor defines crises, ischemic episodes, or well-defined vascular syndromes (such as Raynaud's disease) dominated by a transient spastic narrowing of the circulatory lumen under the influence of neurovegetative or thermal stimuli.