• Muhammad Azeemuddin, Misha Khalid Khan, Muhammad Danish Barakzai, Muhammad Ghazi Asad Khan, Raza Sayani, and Dawar Burhan Ahmed Khan.
• Department of Radiology, The Aga Khan University Hospital, Karachi, Pakistan.
• J Coll Physicians Surg Pak. 2020 Mar 1; 30 (3): 327-329.

AbstractA 78-year female presented with the complain of per rectal fresh bleeding for 4 days. She was known to have diabetes and hypertension, 3 weeks back. She had an episode of left middle cerebral artery (MCA) stroke. After stroke, she suffered from upper limb weakness and aphasia. At the time of presentation, her vitals showed blood pressure of 118/52 mmHg, O2 saturation of 98%, temperature: 37°C, respiratory rate (RR) of 20/min, and heart rate (HR) of 90 bpm. After achieving hemodynamic stability, she was transferred to radiology department. Her presenting complain of active rectal bleeding was managed by interventional radiologist using angiographic embolisation. In this patient, it was found pooling of blood in a retrograde fashion in the sigmoid colon. Bleeding was initially believed to be coming from sigmoid arteries seen on images of CT scan and colonoscopy. However, arteriography showed that source of bleeding was from middle and inferior rectal arteries that originated from left internal iliac artery. The intervention radiology (IR) team had to put in extensive effort to locate and perform therapeutic embolisation.

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