Tonsilloloth Kiyoshi Shikino, MD, PhD1, and Masatomi Ikusaka, MD, PhD11Department of General Medicine, Chiba University Hospital, JapanFunding: None.Conflicts of Interest : None.Authorship: All authors had access to the data and a role in writing the manuscript.Acknowledgments: NA.Article type: Images in Clinical MedicineRunning head: TonsillolothText word count: 166 wordsNumber of figures: 2References: 2

FDG-PET/CT is expensive but useful for diagnosing difficult cases of reactive arthritis. It can reveal enthesitis and arthritis, which are a feature of reactive arthritis.

Follicular lymphoma is the second most common type of non-Hodgkin’s lymphoma. Hepatic accumulation observed on FDG-PET/CT, which is the most useful imaging finding, is observed in 15% of cases. Secondary hepatic lymphoma is defined based on distant involvement, and it typically presents as diffuse infiltration, as in this case.

We should know that a common early pattern is radiculopathy at the level of compression along with an ascending pattern of sensory and motor symptoms in the distal lower extremities.