Localization

 visceral leiomyomas

• uterine leiomyoma
• esophageal leiomyoma
• colorectal leiomyoma of muscularis mucosae

 leiomyoma of the external genitalia
 deep soft tissue leiomyoma

• intra-abdominal deep soft tissue leiomyoma (retroperitoneal-abdominal leiomyoma, retroperitoneal leiomyoma)
• extra-abdominal deep soft tissue leiomyoma

References

 Sandberg AA. Updates on the cytogenetics and molecular genetics of bone and soft tissue tumors: leiomyoma. Cancer Genet Cytogenet. 2005 Apr 1;158(1):1-26. PMID: #15771900#

 Billings SD, Folpe AL, Weiss SW. Do leiomyomas of deep soft tissue exist? An analysis of highly differentiated smooth muscle tumors of deep soft tissue supporting two distinct subtypes. Am J Surg Pathol. 2001 Sep;25(9):1134-42. PMID: #11688572#