{'fraction_non_alphanumeric': 0.023633677991137372, 'fraction_numerical': 0.011816838995568686, 'mean_word_length': 5.220183486238532, '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}}
Presence of lymphocyte membrane surface markers on “small cells” in a pineal germinoma

A 16‐year‐old boy was operated on via an occipital transtentorial craniotomy for a pineal tumor. Routine histological examination of the tissue revealed it to be a germinoma, as characterized by the presence of two cell populations: large cells and small, lymphoidappearing cells. The cells were evaluated in a singlecell suspension for the peresence of lymphocyte membrane surface markers; small cells exclusively were found to have such markers; A T‐lymphocyte membrane marker was present in 81% of the small cells, whereas 15 to 18% of the small cells had a Blymphocyte membrane marker.