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E. Hernández-Pérez and R. Cestoni-Parducci, “Nodular Hidradenoma and Hidradenocarcinoma: A 10-Year Review,” Journal of the American Academy of Dermatology, Vol. 12, No. 1, 1985, pp. 15-20. doi:10.1016/S0190-9622(85)70002-3

has been cited by the following article:

• TITLE: Photodynamic Therapy as Palliative Therapy for Invasive Syringoid Eccrine Carcinoma of the Auricle: A Case Report

  AUTHORS: Claudia Gutiérrez Gómez, Anail Alvarez, Ana Lilia Ruelas, Ixchel Landgrave, Alfonso Vallarta, Laura Andrade

  KEYWORDS: Syringoid Eccrine Carcinoma; Photodynamic Therapy

  JOURNAL NAME: Journal of Cancer Therapy, Vol.4 No.6, July 23, 2013

  ABSTRACT: Recurrent eccrine syringomatous carcinoma is an extremely rare adnexal tumor predominantly found in the head and neck region. We present a case of a 75-year-old woman with a 7-year history of recurrent syringoid eccrine carcinoma in the scalp and auricle. She had undergone five previous oncologic resections and declined further oncologic ablation of the auricle, including temporal bone and external ear canal resection. We performed five sessions of palliative photodynamic therapy using topical aminolevulinic acid HCL 20% (ALA) and between 25 and 33 pulses of Intense Pulsed Light (Quantum) with an intensity of 30 Joules. The ALA incubation time was 3 hours, while the time between each session was 4 weeks. This treatment helped to control ulceration, pain, and swelling. We saw the patient 1 month after the last treatment, by that time she moved and we lost contact.