{'fraction_non_alphanumeric': 0.0286368843069874, 'fraction_numerical': 0.004581901489117984, 'mean_word_length': 5.723076923076923, '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}}
Thoracic neural crest tumors in Beckwith-Wiedemann syndrome.

diagnosis, degree of surgical resection or prior treatment and subsequent development of extraneural metastases was found [4]. The exact route of extraneural metastases is not known, but in the vast majority metastases occurred in the wake of craniotomy, suggesting iatrogenic vascular seeding [3]. Typically, extraneural metastases of ependymoma occur in the lungs, pleura, and lymph nodes while metastases to the mediastinum, liver, bone, and diaphragmatic muscle are even less common [4]. In most cases, the existence of pleuropulmonary metastases was disclosed only at autopsy usually coexisting with CNS recurrence and systemic metastases [5]. Extraneural metastases or relapses of ependymoma are extremely rare but physicians caring for ependymoma patients must remain aware of this possible complication.