2010 Conference Presentation:
A Pilot Study of Four Autopsy Cases
International Science Symposium 3-4 – Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) Queensland, Australia: Population Health and Neuroimmunology Unit, Bond University.
DG O’Donovan1, 2, T Harrower3, S Cader2, LJ Findley2, C Shepherd4, A Chaudhuri2
1Addenbrooke’s Hospital Cambridge UK, 2Queen’s Hospital Romford Essex UK, 3Royal Devon & Exeter Hospitals UK, 4Honorary Medical Advisor to The ME Association UK
Chronic Fatigue Syndrome / Myalgic Encephalomyelitis is a disorder characterised by chronic exercise induced fatigue, cognitive dysfunction, sensory disturbances and often pain. The aetiology and pathogenesis are not understood. We report the post mortem pathology of four cases of CFS diagnosed by specialists.
The causes of death were all unnatural and included: suicidal overdose, renal failure due to lack of food and water, assisted suicide and probable poisoning. Selected portions of tissue were made available by the various Coroners in the UK and with the assent of the persons in a qualifying relationship. The cases were 1 male, and 3 female. Ages (years) M32, F32, F43 & F31.
One case showed a vast excess of corpora amylacea in spinal cord and brain of unknown significance but Polyglucosan Body Disease was not supported by clinicopathologial review. No ganglionitis was identified.
One case showed a marked dorsal root ganglionitis and two other cases showed mild excess of lymphocytes with nodules of nageotte in the dorsal root ganglia.
This raises the hypothesis that dysfunction of the sensory and probably also the autonomic nervous system may lead to abnormal neural activity e.g. hyperalgesia & allodynia rather than anaesthesia and may explain some of the symptoms of CFS / ME such as pain, hypotension, hyperacusis and photophobia. However, the syndrome may be heterogeneous.
Nevertheless, the precise relationship of fatigue, which may be either peripheral or central, to abnormalities in the peripheral nervous system (PNS) needs to be studied.
The differential diagnosis of ganglionitis should be investigated in CFS/ME patients hence Varicella Zoster, Lyme disease, HIV, Sjogren’s disease, paraneoplastic sensory ganglionopathy should be excluded by appropriate history and tests.
Thorough histopathological study of cases coming to autopsy may help to confirm or refute the hypothesis, that CFS is a disease process, and whether the symptomatology may be explained by inflammation of the sensory and autonomic divisions of the PNS.
A specific CFS/ME brain and tissue bank in the UK is proposed.
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Other pages in this section:
- UK ME/CFS Biobank
- Current Studies
- Post-Mortem Tissue Bank and Tissue Donation
- Pathology of CFS
- ME/CFS Disease Register
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