Back ساركومة عضلية ملساء Arabic Liomiosarcoma Catalan Leiomyosarkom German Leiomiosarcoma Spanish Leiomyosarkooma Finnish Léiomyosarcome French Leiomiosarcoma Italian 平滑筋肉腫 Japanese 평활근육종 Korean ലെയോമൈയോസാർകോമ Malayalam
| Leiomyosarcoma | |
|---|---|
| Other names | LMS |
 | |
| Leiomyosarcoma of the adrenal vein. Coronal view of abdominal MRI. Tumor (arrow) extends from the superior pole of the right kidney to the right atrium. | |
| Specialty | Hematology and Oncology |
A leiomyosarcoma, also known as LMS, is a rare malignant (cancerous) smooth muscle tumor.[1] The origin of the word is from leio- + myo- + sarcoma which means malignant smooth muscle tumor. The stomach, bladder, uterus, blood vessels, and intestines are examples of hollow organs made up of smooth muscles where LMS can be located; however, the uterus or abdomen are the most common sites.[2]
Although leiomyosarcomas are rare, they belong to of the more common types of soft-tissue sarcoma, representing 10–20% of new cases.[2] This type of cancer is more frequently diagnosed in adults as compared to children.[2] Additionally, when considering LMS specifically in the context of the uterus, it affects approximately 6 individuals per 1 million people in the United States each year.[2] LMSs are resistant cancers, meaning they are generally not very responsive to chemotherapy or radiation. The best outcomes occur when the tumor tissue can be removed surgically at an early stage, while it is small and has not yet spread from the original site (it remains in situ).[3] LMSs are seen in adults more often than they are seen in children.[4]
- ^ "Leiomyosarcoma - Overview - Mayo Clinic". www.mayoclinic.org. Retrieved 2023-10-04.
- ^ a b c d "Leiomyosarcoma - NCI". www.cancer.gov. 2020-06-22. Retrieved 2023-10-04.
- ^ "Basic info". Leiomyosarcoma.info. Archived from the original on 2009-04-30.
- ^ Kumar, Vinay; Abbas, Abul K.; Aster, Jon C. (2021). "Chapter 26: Bones, Joints, and Soft Tissue Tumors". Robbins & Cotran Pathologic Basis of Disease (10th ed.). Jeremy Bowes. p. 1208. ISBN 978-0-323-53113-9.