CT appearances following laparoscopic partial nephrectomy for renal cell carcinoma using a rolled cellulose bolster.
Summary of "CT appearances following laparoscopic partial nephrectomy for renal cell carcinoma using a rolled cellulose bolster."
Abstract Purpose: To describe the evolving computed tomography (CT) appearances of a cellulose surgical bolster used as a hemostatic agent in patients who undergo laparoscopic partial nephrectomy for renal cell carcinoma. Materials and methods: We retrospectively reviewed the follow-up CT studies of 33 patients with stage T1N0M0 renal carcinoma who underwent laparoscopic partial nephrectomy using a rolled, oxidized, regenerated cellulose sheet sutured in place as a bolster in the parenchymal defect. Thirteen patients undergoing laparoscopic partial nephrectomy without the use of a bolster were also evaluated to differentiate imaging features. Results: The bolster-related masses were significantly larger than those seen in the non-bolster patients. There was a decrease in size of the post-operative bolster-related mass with time. The bolster shape evolved with time, initially appearing oval, and becoming irregular with decreasing size. Equivocal increase in attenuation of 10-20 HU was seen in 6 patients. Increase in attenuation of greater than 20 HU was seen in 3 patients. There was no evidence of tumor recurrence in any of the patients. Invagination of fat was seen in two bolster-related masses at 18 months or greater. Conclusions: Cellulose bolster has a variable appearance on follow-up CT exams. Evolutionary features include reduction in bolster size and shape with time leading finally to non-visualization. Bolster enhancement can mimic abscesses and tumor recurrence.
Affiliation
Departments of Radiology.
Journal Details
This article was published in the following journal.
Name: Cancer imaging : the official publication of the International Cancer Imaging Society
ISSN: 1470-7330
Pages: 161-8
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20675248
- DOI: http://dx.doi.org/10.1102/1470-7330.2010.0023
Medical and Biotech [MESH] Definitions
Carcinoma, Renal Cell
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Von Hippel-lindau Disease
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Mesonephroma
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