Abstract
Extragonadal germ cell tumors (EGCTs) in the lung are extremely rare and their pathogenesis is poorly understood. We report a case in a 48-year-old female which was very aggressive and stained positive for primoridial germ cell markers. Interestingly, there was chromosome 3 polysomy noted. To our knowledge this is the first chromosomal aberration noted in a primary germ cell tumor of the lung.
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