Browsing by Author "Cabrera, Raul"

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    Eruptive Facial Postinflammatory Lentigo: Clinical and Dermatoscopic Features
    (Lippincott Williams & Wilkins, 2016) Cabrera, Raul; Puig, Susana; Larrondo, Jorge; Castro, Alex; Valenzuela, Karen; Sabatini, Natalia
    The face has not been considered a common site of fixed drug eruption, and the authors lack dermatoscopic studies of this condition on the subject. The authors sought to characterize clinical and dermatoscopic features of 8 cases of an eruptive facial postinflammatory lentigo. The authors conducted a retrospective review of 8 cases with similar clinical and dermatoscopic findings seen from 2 medical centers in 2 countries during 2010-2014. A total of 8 patients (2 males and 6 females) with ages that ranged from 34 to 62 years (mean: 48) presented an abrupt onset of a single facial brown-pink macule, generally asymmetrical, with an average size of 1.9 cm. after ingestion of a nonsteroidal antiinflammatory drugs that lasted for several months. Dermatoscopy mainly showed a pseudonetwork or uniform areas of brown pigmentation, brown or blue-gray dots, red dots and/or telangiectatic vessels. In the epidermis, histopathology showed a mild hydropic degeneration and focal melanin hyperpigmentation. Melanin can be found freely in the dermis or laden in macrophages along with a mild perivascular mononuclear infiltrate. The authors describe eruptive facial postinflammatory lentigo as a new variant of a fixed drug eruption on the face.
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    Trichobacteriosis axillaris caused by Dermabacter hominis
    (John Wiley & Sons, 2017) Larrondo, Jorge; Porte, Lorena; Gosch, Marianne; Cabrera, Raul; Weitzel, Thomas
    Trichobacteriosis is a frequent superficial bacterial infection of the hair, mainly affecting sweat gland bearing areas such as axillae and genital region, and also rarely the scalp.(1-3) The disease is characterized by bacterial overgrowth forming nodular concretions, usually of yellow color (infrequently black or reddish), which are firmly attached to the hair shaft.(1,4) Clinical hallmarks are rancid, acidic odor, unpleasant "dirty" sensation, and staining of clothes. Although most cases have been associated to different species of corynebacteria, the full etiologic spectrum of this infection is uncertain .(1,5) Here we report the first case of trichobacteriosis caused by Dermabacter hominis.

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