Navegando por Palavras-chave "parotid gland"

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    Endodermal sinus tumor of the parotid gland in a child
    (Springer, 2004-01-01) Sredni, S. T.; Da Cunha, I. W.; De Carvalho, N. P.; Magrin, J.; Pinto, CAL; Lopes, L. F.; Hosp Canc; Ludwig Inst Canc Res; Universidade Federal de São Paulo (UNIFESP)
    We report a case of a 16-month-old girl with a primary endodermal sinus tumor (EST) of the parotid gland. the girl was admitted to the hospital with a left side cervical tumor with a quick growth (within 3 wk). the tumor was surgically resected. the gross examination showed a 7.0-cm hemorrhagic and fragmentized mass. Diagnosis of an EST was established on the hematoxylin and eosin-stained slides from the resected material. Elevated serum alpha-fetoprotein (AFP) levels were detected and follow-up examinations of the patient did not show ESTs in other locations or other manifestations due to the tumor. the patient received chemotherapy after the surgery and remained alive without evidence of disease at the time of this writing (2 years after the diagnosis). As far as we know, this is the second report in the literature of a parotid gland's EST.
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    Identificação do nervo facial com fluorescência: estudo experimental em ratos
    (Universidade Federal de São Paulo (UNIFESP), 2015-11-25) Melo, Giulianno Molina de [UNIFESP]; Cervantes, Onivaldo Cervantes [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: The parotidectomy technique still has an elevated paresis and paralysis index, lowering patient life's quality. The correct identification of the facial nerve can prevent nerve damage. Fluorescent dye identifies nerves in experimental studies but only few articles focused its use on facial nerve study in parotidectomies. We aimed to stain the rat facial nerve with fluorescent dye to facilitate visualization and dissection in order to prevent injuries. METHODS: Forty adult male Wistar rats were submitted to facial injection of saline solution (Gsf-control group, 10) or fluorescent dye solution (Gdye group, 30) followed by parotidectomy preserving the facial nerve, measuring the time for localization and facility of localization (LocTime and LFN). Nerve function was assessed using the Vibrissae Movements (PMV) and Eyelid Closure Motion (PFP) scores. RESULTS: Nerve localization was faster in Gdye group, with 83% Easy LFN rate. The Gdye group presented with low nerve injury degree and better PMV and PFP scores, with high sensitivity and accuracy. CONCLUSIONS: This experimental method of facial nerve fluorescence was effective for intraoperative nerve visualization, identification and preservation. The technique may be used in future facial nerve studies, translated to humans, contributing to the optimization of parotid surgery in the near future.