“…A latent, heredodegenerative, chronic mesencephalic lesion of neurovegetative type can spring up after infective, traumatic or unknown stimulation according to Bini, Wartenberg, Sanvenero Rosselli, Franceschetti and Koenig, Belloni, Peskova and Stockar, etc. [6,7,9,13,26,27,36,37,66,67,70,78,88]; this theory is reinforced by associated neurologic findings (15.5 % after Gorlin and Pindborg) [8,17,28,45,58,91], experimental cervical sympathectomy [53], ipsilateral or contralateral involvement of the trunk and extremities, unilateral involvement of various organs [1,56,57,71]. The heredodegenerative hypothesis could be supported if autosomal transmission [28,43,62] occurs with such a reduced penetrance and expressivity, so that only external, intra-or extrauterine factors allow the atrophy to phenotipify later.…”