AB135. SOH21AS033. Unusual presentation of a rare retroperitoneal solitary fibrous tumour, a case report with literature review - Rashid, Mustafa; Razzaq, Zeeshan; Majeed, Mudassar; Maxwel, Daphne Chen; Albagir, Mohamed; Ahmed, Mohammed Bashir; Mustafa, Hamid; Aakif, Muhammad; Daoud, Mohammed; O’Connell, Fionnuala; Corrigan, Mark Anthony; Redmond, Henry Paul (Mesentery and Peritoneum, 2021)