“The Dormouse is asleep again” said the Hatter, and he poured a little hot tea upon its nose (Lewis Carroll)

Abstract

A woman of 31 years presented acutely to her general practitioner with left sided pleuritic chest pain of short duration. She had no significant past medical history and was otherwise asymptomatic. On examination, her doctor found no abnormality in the chest, but discovered a large ill defined mass in the left upper abdomen. He requested a plain radiograph of the abdomen (Fig. 1) and an upper abdominal ultrasound (Fig. 2) before referring the patient to hospital where a computed tomographic (CT) scan of the abdomen was performed (Fig. 3). What is the diagnosis and how should the patient be managed? The plain abdominal radiograph confirms the presence of a large rounded mass of soft-tissue density in the left upper quadrant.

Presacral hibernoma: Radiologic-pathologic correlation

“…Following intravenous contrast administration, the hibernoma shows heterogeneous enhancement, with hypertrophic branching intratumoral vessels as was seen in our case. [12] Hibernomas have rarely been described to show minimal postcontrast enhancement. [24] Retroperitoneal hibernoma causes displacement of the adjacent organs and structures but no infiltration.…”

Retroperitoneal Hibernoma: Exhibition of Three Case Reports and Literature Review

“…Macroscopically, they are characterised by well-defined, slightly lobulated, shiny masses, ranging in colour from yellow to brown [6]. To our knowledge, a total of 15 cases of retroperitoneal hibernoma have been published in the literature (Table 1), 25 in total if we add the 10 reported in the series by Furlong et al [4,5,9,[12][13][14][15][16][17][18][19][20][21][22][23][24]. Of the 15 published in isolation, 11 were in women and 4 in men.…”