Abstract:
:Rhabdoid tumor of the thyroid gland is a very rare neoplasm, characterized by significant metastatic potential. All of the 6 cases reported in the recent literature had poor outcomes. We report an additional case involving, to our knowledge, the oldest patient reported so far. A 67-year-old woman had a nodular goiter for all of her adult life and presented with a rapidly growing mass in the right lobe. Histologic examination showed a highly cellular neoplasm with a solid infiltrative growth pattern. Extracapsular invasion was evident. Rhabdoid cells were large, with abundant cytoplasm, eosinophilic inclusions, and eccentric nuclei containing distinct nucleoli. Immunohistochemistry identified vimentin, sarcomeric actin, myoglobin, and cytokeratin expression in the tumor cells; they were negative for desmin, thyroglobulin, and calcitonin. Scattered follicles with nuclear features of papillary thyroid carcinoma were detected; these cells were immunoreactive for thyroglobulin and TTF-1. Reverse transcriptase polymerase chain reaction using specific primers for RET/PTC1 and RET/PTC3 fusion genes identified a RET/PTC3 gene rearrangement in the rhabdoid tumor. Despite radiotherapy, the neoplasm rapidly progressed, with massive local and mediastinal metastasis leading to death 5 months after presentation. The hypothesis that rhabdoid tumor is a variant of anaplastic thyroid carcinoma is supported by the identification of a RET/PTC gene rearrangement, a feature of carcinomas of follicular cell derivation.
journal_name
Arch Pathol Lab Medjournal_title
Archives of pathology & laboratory medicineauthors
Lai ML,Faa G,Serra S,Senes G,Daniele GM,Boi F,Mariotti S,Beauchemin M,Asa SLdoi
10.1043/1543-2165(2005)129subject
Has Abstractpub_date
2005-03-01 00:00:00pages
e55-7issue
3eissn
0003-9985issn
1543-2165pii
CR4072journal_volume
129pub_type
杂志文章abstract:OBJECTIVE:To better understand immunologic and pathophysiologic changes in the spleen in chronic immune thrombocytopenic purpura. DESIGN:We performed immunohistochemical studies on 12 spleens of patients with immune thrombocytopenic purpura. RESULTS:Four spleens had prominent hyperplastic secondary follicles in the w...
journal_title:Archives of pathology & laboratory medicine
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journal_title:Archives of pathology & laboratory medicine
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pub_type: 共识发展会议,杂志文章,评审
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