title: Pneumoretroperitoneum following iliac crest trephine.
mesh_terms: D001706:Biopsy / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007085:Ilium / Q000473:pathology; D008875:Middle Aged; D012188:Retropneumoperitoneum / Q000000981:diagnostic imaging / Q000209:etiology*; D014057:Tomography, X-Ray Computed