The Arachnoiditis Syndrome - Dr Sarah Smith
http://www.arachnoiditis.co.uk/index.php/information/medica-papers-2/124-the-arachnoiditis-syndrome-dr-sarah-smith
From the above link:
"MULTIPLE CHEMICAL SENSITIVITY
A few arachnoiditis patients may develop multiple chemical sensitivity. A paper in 1996 (lxxx) suggested a causal link between neurotoxic illnesses, MCSD (multiple chemical sensitivity disorder) and exposure to environmental toxins, including organic solvents and dental materials. There is also a link between autoimmune diseases such as lupus and multiple allergies."
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Spinal arachnoid web—a distinct entity of focal arachnopathy
https://www.sciencedirect.com/science/article/pii/S1529943021007828
Spinal arachnoid web (SAW) is a rare pathology causing spinal cord compression due to the formation of thickened arachnoid tissue [1]. It can lead to spinal cord compression or focal syrinx formation causing symptoms of myelopathy such as progressive (neuropathic) pain, weakness, sensory deficits or other less common neurological findings. Syringomyelia is frequent and caused by mass effect of the SAW or obstruction of cerebrospinal fluid (CSF) flow [2,3].
Clinical management is challenging since the spinal magnetic resonance imaging (MRI) findings are often subtle and easily overseen. In addition, microsurgical treatment requires a high degree of skill and experience. Only 45 individual cases of surgically confirmed SAW have been described in the literature [4], [5], [6].