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Reactive tonsillar enlargement with strong 18F-FDG uptake after chemotherapy for tonsillar diffuse large B-cell
Ryosuke Hosokai1, Chihaya Imai, Takayuki Takachi
1Department of Pediatrics, Niigata University Graduate School of Medical and Dental Science, Asahimachi-dori Chuou-ku, Niigata, Japan. hosokai@med.niigata-u.ac.jp
Abstract:
We describe a 14-year-old boy who exhibited left palatine tonsillar enlargement after 6 cycles of aggressive chemotherapy for diffuse large B-cell lymphoma of the right palatine tonsil. The cervical computed tomography scan at 4 months after completion of chemotherapy revealed enlargement of the left palatine tonsil in addition to the thymus without any clinical symptoms. The F-fluorodeoxyglucose positron emission tomography indicated focal areas of strong F-fluorodeoxyglucose uptake in the left palatine tonsil. Histologic examination confirmed tonsillar hyperplasia with no evidence of recurrence. Reactive tonsillar hyperplasia after chemotherapy is rarely reported.
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