A leiomyoma (plural is 'leiomyomata') is a benign smooth muscle neoplasm that is not premalignant . They can occur in any organ, but the most common forms occur in the uterus and the esophagus.
Uterine leiomyomata
See uterine fibroids
Esophageal
They are also the most common benign esophageal tumour, though this accounts for less than 1% of esophageal neoplasms.
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