{'fraction_non_alphanumeric': 0.018418201516793065, 'fraction_numerical': 0.0032502708559046588, 'mean_word_length': 5.461538461538462, '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}}
Parastomal Recurrence: A Therapeutic Challenge

Post-laryngectomy stomal recurrence usually manifests as diffuse in ltration of neoplastic tissue at the junction of the resected trachea and the skin (1) and may present clinically as single or multiple tumor nodules. The presence of recurrent cancer at the tracheal stoma is usually a devastating sequel of total laryngectomy and often carries a dismal prognosis. Stomal or parastomal recurrence is most often associated with advanced cancer of the larynx and hypopharynx, although it has occasionally been reported after surgery for cancers developing in other areas of the head and neck. While squamous cell carcinoma is most frequent, other laryngeal malignancies may recur in the parastomal area (2–8). Stomal recurrence is considered the most lethal complication of laryngeal cancer and occurs rarely following treatment of non-laryngeal or non-hypopharyngeal tumors.