{'fraction_non_alphanumeric': 0.023336214347450302, 'fraction_numerical': 0.003457216940363008, 'mean_word_length': 4.79, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A rare case of benign teratoma of the facial fronto-temporal region in adult male.

Teratoma is a germ cell neoplasm composed of tissue derived from at least two of three blastodermic embryonic layers (ectoderm, mesoderm and endoderm). The incidence of teratoma in the head and neck region is rare, in particularly in adults.


A CASE REPORT
We reported an uncommon case of teratoma in a 30 years male with a mass in the right fronto-temporal region of the face. Magnetic resonance imaging revealed a well encapsulated heterogenous mass with solid-cystic component extending from the fissure zygomatofrontal and the fissure zygomato-temporal. Serum alfa-fetoprotein levels were not elevated. Surgery was performed, the mass was completely removed, and microscopical analysis confirmed a diagnosis of mature benign teratoma. The patients showed no clinical signs of recurrence in 10 years follow-up. This case of teratoma is extraordinary due to three reasons: the location, the age of patient and benign nature of the tumor in patient at this age. Because such tumors occur exceptionally, each case should be studied with a long-term follow-up and reported.