期刊
NEUROLOGICAL SCIENCES
卷 39, 期 2, 页码 347-351出版社
SPRINGER-VERLAG ITALIA SRL
DOI: 10.1007/s10072-017-3202-4
关键词
Myotonic dystrophy type 1; DMPK; Thoracic imaging; Thymus; Thymoma; Thymic hyperplasia
The occurrence of thymoma in myotonic dystrophy type 1 (DM1) has been occasionally reported, and an increased risk of tumors has been observed. We performed imaging of the thymus in 22 patients carrying DMPK expansion. Clinical examination and routine instrumental exams were performed at the same time. We observed no thymic abnormalities in 13 subjects, thymic hyperplasia in eight patients, and an invasive thymoma in one case. Subjects with thymic abnormalities did not show peculiarities as regards clinical and electrophysiological features. We observed thymoma in one patient with an expansion in the higher range. Abnormalities of the thymus including hyperplasia and thymoma can be present in DM1, but do not seem to play a major role in DM1 pathogenesis. Further studies are needed to understand if some RNA splicing factors involved in DM1 and influenced by CTG expansion size could have a role in thymocytes proliferation.
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