Van den Bergh, Magali, Bauer, Frank A, Posteraro, Anthony F et al. · Connecticut medicine · 2014
This report describes one patient with a rare condition called Kikuchi-Fujimoto disease (KFD), which causes swollen lymph nodes and fever. What makes this case unusual is that the patient also had fibromyalgia and ME/CFS, and her lymph node swelling was in an atypical location. The patient improved with steroid treatment, though her symptoms returned a few months later and responded well to treatment again.
This case is relevant to ME/CFS patients and researchers because it documents a rare but potentially important association between an inflammatory lymph node condition (KFD) and ME/CFS in the same patient. The finding suggests that ME/CFS may occur alongside other conditions involving immune activation and inflammatory lymphadenopathy, which could inform future investigations into overlapping or shared pathogenic mechanisms.
This single case report does not establish causation between KFD and ME/CFS, nor does it prove that KFD is a common comorbidity in ME/CFS populations. The unusual presentation in this patient does not indicate whether atypical lymph node involvement patterns are associated with ME/CFS specifically, as this remains a one-patient observation without a control group.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
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