Fibroid tumors are malignant in what percentage of patients?

Fibroid tumors, also known as uterine leiomyomas, are predominantly benign tumors that arise from the smooth muscle of the uterus. The incidence of malignant transformation is extremely low. Studies indicate that the risk of a fibroid tumor being malignant is less than 0.1%. This statistic highlights the rarity of malignant changes in fibroids, making option A the correct choice.

Understanding the nature of fibroids is essential for patient management and treatment. While fibroids can cause various symptoms due to their size or location, the overwhelming majority of these tumors are non-cancerous, which greatly influences the approach to treatment and counseling for patients. The other percentage options reflect a misunderstanding of the actual risk associated with fibroid tumors, emphasizing the need for accurate information in clinical practice.