✓ Neurenteric spinal cysts are infrequently occurring dysraphic lesions that are caused by persistent or abnormal communication among neuroectoderm, notochord, and endoderm. They are generally located at the intradural, extramedullary compartment of the low cervical or upper spinal canal. They occur primarily in infants and in young adults in combination with other congenital abnormalities. The authors report on three cases of lower-thoracic and thoracolumbar intramedullary neurenteric cysts that atypically presented in adult patients in whom there was no concomitant malformation. These lesions appear notable for location, clinical presentation, intraoperative findings, and imaging features.

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We report a case of ecchordosis physaliphora, an uncommon benign lesion originating from embryonic notochordal remnants, intradurally located in the prepontine cistern, that unusually presented associated with symptoms. MRI detected and precisely located the small mass. At surgery, a cystic gelatinous nodule was found ventral to the pons, contiguous with the dorsal wall of the clivus via a small pedicle. Histological examination diagnosed the lesion as an ecchordosis physaliphora. Here we focus on the analysis of the neuroradiological aspects that play a crucial role from both a diagnostic and a therapeutic standpoint.

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Cutaneous involvement in severe carpal tunnel syndrome is secondary to damage to sensory and autonomic fibers of the median nerve. We report the case of a 63 year old man who presented skin and bone lesions, confined to the sensory zones of both median nerves. The lesions consisted of dystrophic modifications of the fingernails, progressive sclerosis, skin thickening and ulcerations on the fingers, acro-osteolysis, and purulent inflammation with subsequent auto-amputation of the distal phalanx of the right index finger. Clinical, neurophysiological and surgical findings are reported. The recovery of the ulcerative lesions suggests the reversibility of autonomic disturbances after surgery.

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