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Updated: Jan 5, 2026
Preparation and Using Phantom Lesions to Practice Fine Needle Aspiration Biopsies
Published on: September 29, 2009
Surface adhesive and hand-aided needle-assisted biopsy technique (SAHNA)
R Rajakulasingam1, A Iqbal1, S L James1
1Department of Musculoskeletal Radiology, Royal Orthopedic Hospital NHS Foundation Trust, Bristol Road South, Northfield, Birmingham, UK.
Objective:
We describe a novel and efficient CT biopsy technique that we have termed 'skin adhesive and hand-aided biopsy technique', shortened to the acronym SAHNA. This technique is ideal for biopsying surface osseous lesions where there is a lack of subcutaneous fat. This avoids the need for the radiologist's hand to be in close proximity to the CT scanner beam at the time of intervention.
Methods:
The SAHNA technique uses a plastic surgical forceps towel clamp to stabilise the biopsy needle just proximal to the lesion after piercing through the skin. The clamp itself is stabilised via a self-adhesive dressing which is stuck down to the skin at its shank.
Results:
In our institution, we have already used the SAHNA technique successfully in over 5 cases.
Conclusion:
The SAHNA technique is a widely accessible and effective way of stabilising the CT biopsy needle in technically challenging superficial bony lesions.
