Biomedical subjects
Publications and source records attributed to M Huerta Brogeras.
We describe a case of a 70-year-old woman who had been using a skin-lightening cream containing hydroquinone for a previous diagnosis of melasma. She presented a hyperpigmentation predominantly on her cheeks and eyebrows. The biopsy showed deposition of yellow-brown globules in the dermis. A diagnosis of exogenous ochronosis was made. An attempt of treatment using a Q-switched Nd:YAG laser has been initiated recently.
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We report the case of a 71-year-old-man with dermatitis in the groin area. Forty-eight hours previously, he had undergone transurethral resection for benign prostatic hyperplasia. During the prostatectomy, the probe was lubricated with a urological ointment containing the topical anesthetic, tetracaine. The patient had previously experienced severe pruritus and fissures in the perianal area after using antihemorrhoidal ointments. Biopsy and patch testing with the standard series and lubricant ointment showed positive reactions to this lubricant, called "urological lubricant" (UL) (+ + +) with caine mix (+ + +). The patient was diagnosed with systemic contact-type dermatitis due to caine mix. The dermatitis improved with topical steroids and oral antihistamine agents.