TY - JOUR
AR - CRSS-2021-2-105
TI - Benign Lipoid Neoplasm or Malignant Liposarcoma in Disguise? Diagnostic Dilemmas Pertaining to Lipomatous Neoplasms of the Retroperitoneum
AU - Long Jiahuan, Xanicia
AU - Welras, Jirui
JO - Case Reports and Series in Surgery
PY - 2021
DA - Thu 10, Feb 2022
SN - 2733-2241
DO - http://dx.doi.org/10.31487/j.CRSS.2021.02.05
UR - https://www.sciencerepository.org/benign-lipoid-neoplasm_CRSS-2021-2-105 
KW - Liposarcoma, atypical lipomatous tumor, lipoma, MDM2, CDK4
AB - Retroperitoneal benign lipoid lesions are extremely rare, representing about 2.9% of all primary retroperitoneal tumors. Despite being of benign origin, they can have severe complications. We report a case of an elderly Chinese male presenting with urinary obstruction and lower limb deep vein thrombosis, with computer tomography findings of an extending pre-sacral retroperitoneal lesion. Histology and fluorescence in situ hybridization investigations confirmed that the lesion was of benign lipoid origin. Patient was offered surgical intervention which he declined in view of age.