Needle-guided bipolar intralesional radiofrequency coagulation with scissor excision for bloodless resection of benign lesions
How to cite this article: Sharma A, Swarnkar B, Gupta S. Needle-guided bipolar intralesional radiofrequency coagulation with scissor excision for bloodless resection of benign lesions. Indian J Dermatol Venereol Leprol doi: 10.25259/IJDVL_102_2022
Haemostasis is a prime concern during the excision of benign growths at highly vascular sites, such as the nose, lips and temple; which are also important cosmetically. Bipolar radiofrequency is used for coagulation of bleeders with minimal collateral damage as the flow of energy is restricted between its two poles situated 3–4 mm apart. This feature may be reutilised to compress and precisely ablate small sessile lesions sized up to 1 cm using a bipolar radiofrequency probe alone1; whereas monopolar tunnelling followed by bipolar coagulation may aid in the excision of larger lesions.2 However, extensive coagulation of the base of large lesions may result in scarring, which may be cosmetically disfiguring at sensitive sites. The tissue destruction in radiofrequency is directly proportional to the diameter of electrodes, therefore, the tips of the routinely used bipolar forceps may be unsuitable for areas needing precise ablation.
We propose the use of needle-assisted intralesional radiofrequency3 for coagulation (and subsequent haemostasis) of the base of benign skin lesions at vascular and cosmetically sensitive sites. Two 26G needles are inserted at the base in a converging fashion such that the distance between them is less than 5 mm within the lesion, but more than 5 mm at the point of entry [Figures 1 and 2]. Thus, when touched simultaneously by the two poles of bipolar forceps, the lesional base is coagulated without any epidermal damage, despite the needles being non-insulated. This process is repeated circumferentially around the lesion, which is then excised easily using ordinary scissors, leaving behind a healthy rim of tissue which may be sutured or left to heal by secondary intention [Video 1]. This method ensures a quick, bloodless resection with a favourable cosmetic outcome [Figures 3a and b]. Moreover, the tissue remains well-preserved for histopathology as the flow of energy is confined to the area between two terminals and thin-bore fine needles do not cause much tissue destruction.
Declaration of patient consent
The authors certify that they have obtained all appropriate patient consent.
Financial support and sponsorship
Conflict of interest
There are no conflicts of interest.