RESUMOOs paragangliomas são tumores raros com uma incidência descrita de 2-8 por milhão. São tumores de células cromafins do sistema neuroendócrino que provêm dos gânglios simpáticos ou parassimpáticos. Apresentamos um caso de uma jovem de 32 anos, nulípara referenciada à nossa Unidade de Infertilidade. No decurso da investigação, na ecografia abdomino-pélvica identificámos a presença de uma massa que se estendia da pélvis ao abdómen, desde ovário direito até junto dos vasos renais, cujo ponto de partida era extra-ovárico (foram identificados os dois ovários com características morfológicas normais). A ressonância magnética revelou uma massa anexial multiquística e muito vascularizada junto aos vasos ilíacos, tendo colocado em hipótese origem ovárica. Desta forma, procedemos a uma laparotomia exploradora e encontrámos uma massa encapsulada, muito vascularizada que se estendia desde o bordo inferior da artéria renal direita até ao ligamento largo direito. A massa foi totalmente removida e a histologia foi consistente com um Paraganglioma. Palavras-chave: Neoplasias Abdominais; Neoplasias Pélvicas; Paraganglioma. ABSTRACTParagangliomas are rare tumors, with a reported incidence of 2-8 per million. They are chromaffin cell tumors that develop from the neural crest cells and may be divided in tumors derived from the parasympathetic or sympathetic ganglia. We report a case a of a 32-year-old nulliparous woman, referred to our Infertility Clinic. Abdomino-pelvic ultrasound identified a large abdominopelvic tumor, without ovarian origin (both ovaries were identified and had normal morphology). Magnetic Resonance Imaging suggested a right adnexal multicystic, vascularized mass close to iliac vessels and questioning an ovarian origin. At exploratory laparotomy, a 10 cm encapsulated and vascularized mass was found beginning just below right renal artery and extending to the level of the broad ligament. This mass was totally excised and histopathology was consistent with Paraganglioma.
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