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Updated: Mar 13, 2026

Tumor Engraftment in a Xenograft Mouse Model of Human Mantle Cell Lymphoma
Published on: March 30, 2018
[Autoimmune encephalitis due to mantle cell lymphoma]
A A H Bressers1, N A Goto, S Piepers
1Meander Medisch Centrum, Amersfoort.
Background:
Autoimmune encephalitis is a rare condition characterized by subacute development of cognitive and psychiatric symptoms. A paraneoplastic syndrome involves autoimmune encephalitis caused by classic antibodies. Although this condition is often associated with cancer, no malignancy has yet been found in 70-90% of patients at the time of diagnosis.
Case Description:
We saw a 58-year-old male patient with fatigue, diarrhoea and weight loss. He was also experiencing hyperekplexia, personality changes and an instable gait. PET-CT revealed generalised lymphadenopathy. Histopathological analysis of a lymph node showed mantle cell lymphoma. Further investigation of the fluid revealed anti-DPPX IgG antibodies. We treated the patient's mantle cell lymphoma with R-CHOP; he achieved complete remission and his neurological symptoms resolved almost completely.
Conclusion:
The presence of anti-DPPX IgG antibodies is rare. Although it has not been proven that these antibodies are related to malignancies, this is the third of 30 known cases in which anti-DPPX IgG antibodies and a lymphatic malignancy were found.

