{'fraction_non_alphanumeric': 0.019230769230769232, 'fraction_numerical': 0.0, 'mean_word_length': 5.2023809523809526, '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}}
Unusual vascular lesions of the neck.

Vascular lesions of the neck may initially appear atypically, without the expected findings of a bluish discoloration, pulsations, or a bruit. The initial characteristics may mimic that of a metastatic carcinoma. The true nature of the lesion may remain obscure, despite a thorough preoperative evaluation, including angiography. The head and neck surgeon must be aware of the occasional unusual appearance and must be prepared to treat whatever vascular lesion he might encounter.