“…The most frequent were neck swelling and erythema [ 2 , 3 , 5 , 6 , 11 , 12 , 13 , 14 , 15 , 17 , 23 , 24 , 25 , 26 , 27 ] and the palpable cord beneath the sternocleidomastoid muscle [ 2 , 3 , 6 , 28 ], frequently associated with fever [ 3 , 14 , 18 , 28 ]. Oedematous swelling of the face/scalp [ 17 , 18 , 26 , 29 , 30 ], papilledema [ 12 , 14 , 17 , 22 ] and intracranial hypertension [ 9 , 12 , 14 , 22 , 28 ] were also reported in several papers. These kinds of symptoms could be ascribed to a possible impairment of the cerebrospinal fluid dynamics, which is strictly connected to the cerebral venous outflow [ 31 ].…”