Shave Excision of Nonpigmented Intradermal Melanocytic Nevi
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Nonpigmented intradermal melanocytic nevi (IMN) are benign lesions often removed for cosmetic reasons. There is no consensus as to the best technique for IMN excision. A Study was conducted to compare cosmetic outcomes and risk of recurrence after shave excision versus elliptical excision of IMN.

In this randomized clinical trial, patients underwent shave excision or elliptical excision with sutured closure of IMN of the face or back. Recurrence, patient satisfaction, cosmetic outcome, postoperative discomfort, scar size, discoloration, and presence of hypertrophic or keloid scars were evaluated at 3, 6, and 9 months.

Results:
Overall, 145 nevi were removed from 45 patients (86.7% women, mean age 52.1 ± 12.5 years).

--The recurrence rate was 11.7%, occurring only after shave excision; 94.1% of recurrences were observed at 3-month follow-up.
--Shave excision was associated with less discomfort 48 hours after intervention but a greater likelihood of involved lateral and deep margins.
--Scars were larger after elliptical excision and suture than after shave excision.
--The mean patient satisfaction was higher in the shave excision group.

In particular, shave excision of IMN is associated with higher rates of involved surgical margins and recurrence than elliptical excision but provides superior cosmesis and patient satisfaction.

Source: https://journals.lww.com/dermatologicsurgery/Abstract/2021/02000/Shave_Excision_Versus_Elliptical_Excision_of.10.aspx
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