HISTOMORPHOLOGICAL SPECTRUM OF UTERINE LEIOMYOMA VARIANTS – A RETROSPECTIVE STUDY IN TERTIARY CARE HOSPITAL

Abstract

To study the histomorphological spectrum of uterine leiomyoma variants. This study is done over a period of three year (May 2019 to May 2022) in the Department of Pathology, LNMC, Bhopal. Total of 316 hysterectomy and 14 myomectomy specimens were studied. Specimens were fixed in formalin and paraffin embedded. H&E stained tissue sections were studied. In the study we performed retrospective analysis of hysterectomy and myomectomy specimen and 330 cases of leiomyoma were evaluated. Among 330 cases, 316(95.75%) were hysterectomy specimen for varying indication and 14(4.24%) were myomectomy specimen. Histologically the usual leiomyomas was comprising of 164(49.69%) cases followed by hyalinised leiomyoma 70(21.21%), myxoid leiomyoma 15(4.54%), hydropic change 12(3.63%), cellular 11(3.33%), lipoleiomyoma 10(3.03%), calcification 10(3.03%), infarct type necrosis 10(3.03%), mitotically active 8(2.42%), symplastic 7 (2.12%), schwanonian 6(1.81%), epithelioid 3(0.90%), dissecting leiomyoma 2 (0.60%) and stromal metaplasia (osseous and cartilaginous) 2(0.60%). Leiomyoma is the commonest benign smooth muscle tumor of the uterus with a number of histological variants. In this study conventional leiomyoma being the commonest variant followed by hyalinized leiomyoma, myxoid leiomyoma, hydropic leiomyoma and lipoleiomyoma. It is important to categorise various types of leiomyoma on histology to avoid misdiagnosis.