Spine is the most important part of the human being responsible for locomotion. Low back ache is a com-mon presenting problem involving it. Underlying cause can be varying from according to different individ-uals. Arachnoid cyst is a rare cause for the low backache. In this case Study, a 35-year-old female patient presented with pain in low back radiating to whole extent of both lower extremities, associated with prick-ing, tingling sensation for 2 years. On evaluation, clinically had

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... osis, paraspinal muscle spasm was evident. No mass, scars were seen. Palpation revealed tenderness at L5-S1 region. Special tests- SLR both active and passive-30 degrees, lasegue-bregards-bowstrings-flip test- coin test was positive, MRI revealed thin walled cystic lesion within the subarachnoid space of sacral spinal canal- arachnoid cyst. The case was diagnosed as Va-takaphajagridhrasi. Patient was treated with Bahya Snehana, Swedana and Basti karma was prescribed as prime management. The subject got relief from pain, pricking and tingling sensation, by applying principles of Vataupakrama, Gridhrasi Chikitsa.