کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4133269 | 1271413 | 2014 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Indolent peripheral T-cell lymphoma involving the gastrointestinal tract Indolent peripheral T-cell lymphoma involving the gastrointestinal tract](/preview/png/4133269.png)
SummaryWe describe an unusual case of indolent peripheral T-cell lymphoma with multifocal involvement of the gastrointestinal tract. The patient, a 42-year-old Asian man, has been followed up for more than 10 years without chemotherapy and multiple gastrointestinal biopsies showing similar findings. Histologically, the neoplasm expanded into the lamina propria and/or focally extended into the submucosa and was composed of small- to medium-sized lymphocytes with slightly irregular nuclear contours and clear cytoplasm and rare large lymphocytes. The tumor cells were positive for CD3, CD8, granzyme B, and TIA-1 (subset) and negative for CD5, CD56, and Epstein-Barr virus–encoded RNA. Molecular studies for T-cell receptor γ and/or β chain gene rearrangement demonstrated the same clone at different sites and times during the course of the disease. Rare cases of indolent peripheral T-cell lymphoma of the gastrointestinal tract have been previously described and need to be further characterized to avoid the use of aggressive chemotherapy.
Journal: Human Pathology - Volume 45, Issue 2, February 2014, Pages 421–426