title: Evaluation of contrast markers for CT aspiration biopsy.
abstract: Precision percutaneous needle aspiration biopsy under guidance of computed tomography is facilitated by injection of a small amount of contrast material during the biopsy procedure. CT scan immediately after biopsy clearly documents the biopsy site. There was no adverse effect of the contrast agents on the quality of staining or preservation of cellular architecture. To the contrary, the aspirates obtained after contrast injection were generally better preserved and better stained than the control specimens. This may be due to a decrease in drying, with the more fluid aspirates obtained after contrast injection.
mesh_terms: D000368:Aged; D001707:Biopsy, Needle / Q000379:methods*; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging / Q000473:pathology; D003287:Contrast Media / Q000008:administration & dosage*; D004938:Esophageal Neoplasms; D005069:Evaluation Studies as Topic; D006801:Humans; D008223:Lymphoma / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010386:Pelvic Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media