Background and Aims A 45-year-old man with no known medical history presents with cervical and shoulder pain in addition to itching on his left palm, which progressed to involve the entire C7 territory (Panel A). The patient underwent a head and neck MRI which showed evidence of left foraminal C7 disc herniation (Panel B) leading to the diagnosis of brachioradial neurogenic pruritus
Methods A 45-year-old man with no past medical history presented with cervical and shoulder pain in addition to itching on his left palm. On the 5th day, pruritus spread to the C7 territory. Subsequently, an area of paresthesia; erythema developed after a hot shower (Panel A), underwent head and neck MRI which showed evidence of left foraminal C7 disc herniation (Panel B). The diagnosis of brachioradial pruritus was made. The patient was treated with two steroid epidural injections, and improved his pruritus.
Results This is a rare entity, with a variable incidence between 8% and 19% of all types of chronic pruritus, is identified as neuropathic when the nerve fiber or glia is damaged and is responsible for the symptoms. Nerve fiber damage causes overlapping symptoms of itch and pain, or pruralgia, which encompasses a wide range of altered perceptions including burning, dampness, electric sensations, tingling, and various variants of pain. Brachioradial pruritus is used to describe upper limb involvement, with compressive radiculopathy of the cervical canal due to stenosis being the most common cause.
Conclusions This entity must be considered in patients with radicular pain.
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