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Benign Melanocytic Lesions
Published in Ashfaq A Marghoob, Ralph Braun, Natalia Jaimes, Atlas of Dermoscopy, 2023
Valeria De Bedout, Natalia Jaimes
Recurrent nevi are defined as proliferations of nevomelanocytes occurring after the partial surgical or traumatic removal of a melanocytic nevus (11). They most commonly occur on the back of young adults and often develop within the first 3 to 8 months after incomplete removal of the nevus (11–13). Although clinically recurrent nevi may simulate a melanoma (i.e., pseudomelanoma), dermoscopy has proven useful in differentiating them from melanoma (13).
Benign Neoplasms
Published in Ayşe Serap Karadağ, Lawrence Charles Parish, Jordan V. Wang, Roxburgh's Common Skin Diseases, 2022
Abdullah Demirbaş, Ömer Faruk Elmas, Necmettin Akdeniz
Management: No treatment is generally required for a recurrent nevus due to the supportive clinical history and the benign nature of the previously removed nevus. If the patient cannot provide the history of the previous removal, the current lesion should be excised.
Dermoscopy
Published in Dimitris Rigopoulos, Alexander C. Katoulis, Hyperpigmentation, 2017
Teresa Deinlein, Iris Zalaudek
Melanotic pigmentation within a scar consecutive to the excision of melanocytic lesions can be due to either a reactive phenomenon related to the scar tissue or a recurrence of the ecxised melanocytic lesion.53–57 There are four dermoscopic features allowing a differentiation between reactive and melanocytic pigmentation in a scar. The presence of globules and a heterogeneous pigmentation is highly correlated with a specific melanocytic pigmentation. On the other hand, a regular network, as well as streaks, is a strong indicator of reactive pigmentation (Figure 22.7a and b).53,54 In recurrent nevi radial lines, symmetry and a centrifugal growth pattern are typical dermoscopic findings. On the contrary, circles, especially in the head and neck region, an eccentric hyperpigmentation at the periphery, and a chaotic and noncontinuous growth pattern are indicative of a recurrent melanoma. However, pigmentation beyond the scar’s edge is the strongest clue for melanoma.53–57
Microscopic treatment of benign eyelid margin lesions with ultrapulse carbon dioxide (CO2) laser
Published in Journal of Cosmetic and Laser Therapy, 2021
Zhen Mao, Bing-Ying Lin, Yi-Dan Huang, Dan-Ping Huang
Treated areas were less pigmented than the surrounding area in two patients, while the hypopigmentation was mild (Figure 4). No hyperpigmentation was noted. Three patients (3/132, 2.27%) developed a recurrence of melanocytic nevus postoperatively (at 4, 6, and 11 follow-up months respectively). The recurrent nevus appeared as a pigment spot in 2 patients and remained stable in the follow-up period. Therefore, no further laser treatment was performed. For the third patient, we retreated the lesion with the ultrapulse CO2 laser and no relapse occurred furthermore. There were no occurrences of other complications reported before, such as wound infection, eyelid notching, and cicatricial entropion.