Spectrum of Pathological Lesions in Uterine Specimens with Focus on Gestational Trophoblastic Disease in Karachi

Background: The most common benign pathological lesion in women of reproductive age is uterine leiomyoma. Gestational trophoblastic disease includes tumors and tumor like lesions originating from trophoblastic tissue. The aim of this study was to find the spectrum of molar pregnancy and uterine pathologies focusing on gestational trophoblastic disease as no study has been done in the past few years. Methods: Endometrial and uterine specimens of patients (n=436) between the ages of 15-65 years were collected from a private hospital in Karachi from December 2018 to December 2019. This cross-sectional study was carried out by pathological diagnosis of patients’ samples under light microscopy using hematoxylin and eosin staining. Stratification was done about age and nature of specimen to control the effect modifiers. The post stratification Chi square test was applied and p value <0.05 was considered significant. Results: Mean age of the patients was 36.1 years ±7.8. Total 436 uterine biopsies included 260(59.6%) hysterectomies, 56(12.8%) endometrial curetting’s, 117(26.8%) evacuation specimens and 3(0.7%) polypectomies. Common pathologies included 124(28.4%) leiomyomas, 61(14%) proliferative endometrium, 52(11.9%) adenomyosis and 32(7.3%) endometrial polyps. Gestational trophoblastic disease was seen in 9(2.06%). Seven (87.5%) were partial hydatidiform moles, one (12.5%) exaggerated placental site reaction and one choriocarcinoma. Mole was common between 26-30 years with mean age of 27.2 years and prevalence was 6/100 abortions. Conclusion: Leiomyoma was the commonest (28.4%) uterine pathology followed by proliferative endometrium (14.5%). However, endometrial stromal sarcoma and endometriosis were found 0.2% each. High prevalence of mole was seen in this study. Partial mole was most common and choriocarcinoma was least common. Keywords: Hydatidiform Mole; Pathology; Prevalence.