RT Journal A1 Stanwix MG, Edil BH T1 IMage of the month—quiz case JF Archives of Surgery JO Archives of Surgery YR 2010 FD May 1 VO 145 IS 5 SP 499 OP 499 DO 10.1001/archsurg.2010.60-a UL http://dx.doi.org/10.1001/archsurg.2010.60-a AB A healthy 53-year-old woman with chronic lower back pain and radicular pain from a known herniated disk underwent routine imaging by her primary care physician. Magnetic resonance imaging demonstrated a new retroperitoneal 2.1 × 3.0–cm mass at the crus of the diaphragm not identified in an identical study 1 year prior. Further investigation into her history disclosed some flushing and hot flashes. However, she experienced no urinary symptoms (dysuria and hematuria), fevers, abdominal pain, nausea, vomiting, changes in bowel patterns, weight fluctuation, or heart palpitations. Physical examination revealed a normotensive, mildly overweight woman with no pain or masses appreciated on abdominal palpation. No neurological deficit was noted in the thoracic distribution, but bilateral lower lumbar radicular pain to the mid-thigh was reproduced with supine straight leg raising. Results of urinary tests, hormonal workup for a functional retroperitoneal tumor, and standard blood tests were unremarkable.