Which cerebral artery watershed area is typically involved in Man-in-a-barrel syndrome, and what are the clinical features of this syndrome?

Man-in-a-barrel syndrome is associated with ischemia in the watershed areas between the anterior cerebral artery (ACA) and middle cerebral artery (MCA) territories. Key diagnostic features include bilateral upper limb weakness with preserved lower limb function, resembling a person trapped in a barrel. Clinical pearls include recognizing the syndrome as a result of global hypoperfusion or severe hypotension. Common pitfalls include mistaking it for cervical spinal cord lesions or motor neuron disease.