“…3 Other possible diagnoses of a fetal adrenal mass include infradiaphragmatic extralobar pulmonary sequestration, [4][5][6][7] renal duplication, 1,5,8,9 adrenal, mullerian, ovarian, renal, splenic, gastric, or enteric duplication cyst, 1,4,8 adrenal hyperplasia, [5][6][7]10,11 adrenal calcification, 2 multicystic dysplastic kidney, 7,11 adrenal neuroma or neuroblastoma, 12 perinephric urinoma (secondary to posterior urethral valves), 11 mesoblastic nephroma, 13,14 lymphatic malformation, 5 Wilm's tumor, 8,15,16 teratoma, 10 or Beckwith-Wiedemann syndrome (BWS) associated adrenal carcinoma. 1,[13][14][15] Despite advancements in prenatal imaging techniques and diagnosis, it remains a challenge to reliably distinguish between these different diagnoses. 2 Therefore, postnatal surgical intervention is often reported in the literature to rule out neuroblastoma when a fetal adrenal mass is visualized and persists postnatally, even when FAH is suspected.…”