Introduction: Surgery combined with post-operative intralesional corticosteroid injections is considered a good treatment for keloids that occur in the ears, yet the recurrence rate for this procedure is not yet well established. There is no consensus about the minimum number of corticosteroid infiltrations needed to decrease the number of recurrences.
Objective: To correlate the rate of recurrence among patients who had surgery and postoperative intralesional corticosteroid injections to treat keloids in the ear lobe with the number of injections.
Methods: Retrospective study of 41 patients who underwent surgical excision of ear keloids combined with up to two (Group A) or 3 or more (Group B) triamcinolone ace- tonide intralesional injections sessions.
Results: The total recurrence rate was 37% (13% in patients from Group A and 24% in patients from Group B). Results were not more effective when the number of injections was equal to or higher than 3 (p = 0.74).
Conclusions: There was no statistical significance in the number of post-operative corticosteroid intralesional injections in the treatment of ear keloids. Further studies are necessary to corroborate these results.

Keywords: KELOID, ADRENAL CORTEX HORMONES, AMBULATORY SURGICAL PROCEDURES

Introduction: Isotretinoin was initially used to treat severe inflammatory acne and is now widely recognized as an effective therapy for acne vulgaris. Many factors are associated with the recurrence of this condition, which ranges from 5.6-65.4%. There is much con- troversy regarding the importance and contribution of each factor.
Objectives: To determine the recurrence rate in patients who underwent full treatment with oral isotretinoin (dose between 120 and 150 mg/kg) and risk factors.
Methods: Retrospective study of data from 276 patients treated with isotretinoin. The analysis was carried out after a minimum of 30 months after the end of the treatment. Recurrence was defined as the appearance of new active lesions that required retreatment.
Results: While the recurrence rate in patients who underwent the full dose was 25.53%, it reached 81.03% in those who received an incomplete dose. The other studied factors presented no statistical significance.
Conclusion: Oral isotretinoin therapy is effective in producing a significant and long- term reduction of acne. Nevertheless, it is important to note that recurrence can occur, especially when recommended doses are not reached.

Keywords: ACNE VULGARIS, ISOTRETINOIN, RECURRENCE