[Treatment of nevus of Ota and Ito and epidermal nevus syndrome]

Nevus of Ota, nevus of Ito and nevus of Hori are special melanocytic nevi that have a slate-brown or blue/grey coloring. They are pigmented disorders characterized by its heterotopic melanocytic dermal location and by blue/brown unilateral and sometimes bilateral facial patch in case of nevus of Ota, and in the supraclavicular, scapular, and deltoid region in case of nevus of Ito. It is more common in patients with Asian and dark-skinned ethnic backgrounds. Histologically, elongated, dendritic melanocytes are seen scattered mainly throughout the upper third of reticular dermis. An acquired variant is called Hori's nevus with more bilateral facial distribution, similar to melasma. Dermal melanocytosis can also occur elsewhere on the body, including inside the mouth. Despite its benign nature, patients frequently seek therapy because of its facial involvement. QS lasers are used effectively to treat these lesions. The number of treatment sessions correlates with clinical improvement. Post laser hypo- and hyperpigmentation are common side effects mainly affecting patients with darker skin.

Comparative intraindividual ablative tissue effects of diode laser 980 nm versus radiofrequency in tonsillar hypertrophy management

Tonsillotomy (tonsillar ablation) using diode laser and radiofrequency has been introduced for management of tonsillar hypertrophy as it is associated with fewer hazards to deep structures. We compared tissue volume and histological changes in the tonsils following radiofrequency tonsillotomy versus diode laser tonsillotomy in tonsillar hypertrophy. 40 tonsils excised from 20 patients were included in this study. Twenty tonsils were subjected to radiofrequency tonsillotomy (RFT) group 1, and the other 20 tonsils were subjected to diode laser 980 nm tonsillotomy (DLT) group 2. Both procedures were followed by cold dissection tonsillectomy for macroscopic and histological examination of tonsils. Tonsillar volume reduction was evident in both groups with a non-significant difference between groups. Histological changes were evident in both groups. In our study, both radiofrequency and diode laser were effective in tonsillar ablation in terms of volume reduction and keeping the histological pattern intact.