"Despite negative serology and PCR for B. burgdorferi............!!!

Primary cutaneous marginal zone lymphoma associated with juxta-articular fibrotic nodules in a teenager

"Despite negative serology and PCR for B. burgdorferi, the occurrence of ipsilateral juxta-articular fibrotic nodules, positive B. burgdorferi immunohistochemistry and rapid response to IL corticosteroids implicate the presence of a replicative or non-replicative infectious (spirochetal) antigen in the initiation and promotion of this teenager's PCMZL."

http://onlinelibrary.wiley.com/doi/10.1111/cup.12102/abstract