RESUMEN
BACKGROUND: Q-switched lasers have shown to be effective in the removal of unwanted cutaneous pigmentation. Benign cutaneous pigmented lesions represent a heterogeneous group. Nevus spilus is a relatively uncommon pigmented lesion characterized by dark, hyperpigmented dots scattered over a tan-colored macule. OBJECTIVE: A cohort of patients with nevus spilus was studied to determine the effects of Q-switched ruby and Q-switched Nd:YAG laser treatment on clearance of pigment and to evaluate potential side effects. METHODS: Six patients with nevus spilus were treated with the Q-switched ruby laser (QSR). In addition, three lesions received a test treatment with the Q-switched Nd:YAG (QSYAG) laser at 532 or 1064 nm. The results of treatment were documented during follow up visits. RESULTS: Most lesions showed a near-complete or complete response to laser treatment. In one case partial hyperpigmentation occurred after treatment and in one case no follow-up could be obtained. In the three cases that received both QSR and QSYAG laser treatment, the QSR laser was shown to be the most effective in removing pigment. CONCLUSION: Nevus spilus can be treated effectively with the Q-switched ruby laser.
Asunto(s)
Coagulación con Láser , Nevo Pigmentado/cirugía , Neoplasias Cutáneas/cirugía , Adolescente , Adulto , Óxido de Aluminio , Silicatos de Aluminio , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Hiperpigmentación/cirugía , Coagulación con Láser/efectos adversos , Coagulación con Láser/instrumentación , Coagulación con Láser/métodos , Masculino , Neodimio , Nevo Pigmentado/patología , Inducción de Remisión , Neoplasias Cutáneas/patología , ItrioRESUMEN
BACKGROUND: Current therapeutic alternatives for pyogenic granulomas include surgical excision, electrodesiccation and curettage, cryotherapy, and ablation with CO2 or continuous-wave vascular lasers. OBJECTIVE: Our purpose was to investigate the use of the 585 nm flashlamp-pumped pulsed dye laser (585 nm PDL) for the treatment of pyogenic granulomas in terms of efficacy, advantages in technique, and side effects. METHODS: Eighteen patients with symptomatic pyogenic granulomas in a variety of locations were treated with the 585 nm PDL and examined. RESULTS: Sixteen of 18 treated patients demonstrated both symptomatic and clinical clearing of the lesions with excellent cosmetic results after treatment. The two patients who dropped out after one to two 585 nm PDL treatments were eventually treated successfully with electrodesiccation and curettage. No postoperative complications and no persistent pigmentary changes or scarring were observed. The procedure required no anesthesia, and postoperative care was limited to the application of a topical antibiotic ointment. CONCLUSION: Our experience suggests that treatment of pyogenic granulomas with the 585 nm PDL is a safe, effective, and reasonable alternative to conventional therapy.