Incisive Canal

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CT nicely shows normal Incisive Canal in this 16 years old patient. It leads from the floor of the nasal cavity into the incisive fossa on the palatal surface of the maxilla. It contains nasopalatine nerves from the floor of the nasal cavity along with the sphenopalatine arteries supplying the oral mucosa covering the hard palate of the mouth. Also called Incisor Canal.

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10 years old boy from parents being cousins to each other presents with progressive rigidity and dystonia. Initial MR showing significant bilateral atrophy in caudate nuclei and putamina with high signal on FLAIR and T2 consistent with gliosis. Note striking symmetric atrophy of the putamina and caudate nuclei on T2 and IR. Huntington disease (HD) is also known as Huntington chorea. HD is an autosomal dominant chronic hereditary neurodegenerative disorder with complete penetrance [Osborn].  Aggregates of huntingtin protein accumulate in axonal terminals, which eventually leads to the death of medium spiny neurons. Autopsy shows generalized cerebral atrophy with an average of 30% reduction in brain weight. Both the cortex and hemispheric WM are affected. The most characteristic gross abnormality is volume loss with rarefaction of the caudate nucleus, putamen, and globus pallidus [Osborn].  Microscopically, HD features neuronal loss with huntingtin nuclear inclusions, astr
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Hemorrhagic Choroid Plexus Cyst

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