{'fraction_non_alphanumeric': 0.023636363636363636, 'fraction_numerical': 0.005454545454545455, 'mean_word_length': 4.861702127659575, '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}}
Spontaneous Regression of Type B3 Thymoma With Mesothelial Cyst: A Case Report.

T hymoma is the most common anterior mediastinal tumor. However, spontaneous regression of thymoma is rare, especially type B3 thymoma. There have been a few reports of thymoma complicated with cysts, with almost all the cysts being thymic cysts. However, to the best of our knowledge, there has not been any report of thymoma complicated with mesothelial cysts. Here, we report an extremely rare case of spontaneous regression of type B3 thymoma with mesothelial cyst.