Siddiqui, BushraSinha, DipanjanFaridi, Shahbaz HabibAlam, Mohd. Feroz2023-08-192023-08-192022-12Siddiqui Bushra, Sinha Dipanjan, Faridi Shahbaz Habib, Alam Mohd. Feroz. Placental Site Trophoblastic Tumour – A Rare Cause of Uncontrollable Post - Operative Hemorrhage in Obstetric Cases. Indian Journal of Medical Research. 2022 Dec; 8(4): 1-32454-98942454-9886http://imsear.searo.who.int/handle/123456789/224055Placental site trophoblastic tumour (PSTT) is a rare variant of gestational trophoblastic disease developing from intermediate trophoblasts. PSTTs are incredibly rare tumours with 1 in 100000 pregnancies and only about 200 cases reported till date with mortality reaching up to 25% in undiagnosed c ases. We present the case of a 37year old female, gravida 4 para 3, presenting with uncontrollable post caesarean haemorrhage for which she underwent subtotal hysterectomy. Histopathological examination revealed Placental site trophoblastic tumour. Placent al site trophoblastic tumour, being a rare entity, pose difficulties in its early diagnosis. Delayed diagnosis can lead to distant metastases, thus worsening the prognosis.Post - Operative HemorrhageTrophoblastic TumourJournal ArticleIndiaAssistant ProfessorJunior Resident, Department of PathologyAssistant Professor Department of Surgery , JN Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India