Keratoacanthoma may be easily mistaken with squamous cell carcinoma, both clinically as well as histopathologically. However, only keratoacanthoma can regress spontaneously.We report a case of a patient with a exophytic, ulceraded, infiltrated lesion in their scalp that was initially diagnosed as a keratoacanthoma. The histopathologic examination confirmed the presence of squamous cell carcinoma, and the tomography of the skull showed that the cancer had spread within the cranium. A surgical excision with wide margins and rotation flap was conducted, followed by adjuvant chemotherapy and radiotherapy treatments.There are a great number of accounts of squamous cell carcinoma erroneously diagnosed as keratoacanthomas in the specialist literature, illustrating the difficulty in differentiating between them.While there is no established effective method to distinguish between the two conditions, surgical excision should be the treatment of choice.

Keywords: CARCINOMA, SQUAMOUS CELL, KERATOACANTHOMA, SURGERY

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

In search of a perfect aesthetic, facial filling procedures have been widely used. The presence of animal proteins or synthetic substances in some cutaneous fillers can cause serious allergic reactions, especially when performed by untrained professionals. There are not ideal, pure and free of side effects substances available in the marketplace. The present article is aimed at reporting a case where a facial filling was performed by a non-medical professional, resulting in foreign body reaction and severe skin infection, leading to deformities caused by the procedure carried out. The complications entailed invasive procedures for removal of the material used, and treatment with corticosteroids.

Keywords: MOHS SURGERY; CARCINOMA, BASAL CELL; NOSE NEOPLASMS; SURGICAL FLAPS; NASAL CARTILAGES