IngentaConnect Pathological features of diseases associated with human T-cell le...

Author: Ohshima, Koichi

Source: Cancer Science, Volume 98, Number 6, June 2007 , pp. 772-778(7)

Abstract:

In the early 1980s, the first human retrovirus, human T-cell leukemia virus type I (HTLV-I), was isolated and its characterization opened up the new field of human viral oncology. Adult T-cell leukemia/lymphoma (ATLL), which is associated with HTLV-I, is characterized clinically by the appearance of characteristic flower cells, a rapid clinical course, occasional skin lesions, lymphadenopathy and hepatosplenomegaly. Severe opportunistic infections are occasionally accompanied. In addition, HTLV-I infection is associated with autoimmune and reactive disorders, such as HTLV-I-associated myelopathy and uveitis, and is also related to immunodeficient infectious diseases. Pathological findings of ATLL in the lymph nodes, skin, liver and other organs have been described. Common histological features are a diffuse proliferation of atypical lymphoid cells that vary in size and shape. In addition to ATLL, non-neoplastic organopathies have been documented in many organs, such as the central nerve system, lung, skin, lymph nodes and gastrointestinal tract. To clarify the HTLV-I-associated diseases, it is important to understand the pathological variations. (Cancer Sci 2007; 98: 772-778)

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Pathological features of diseases associated with human T-cell leukemia virus type I