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Gastroenterology. 1992 Feb;102(2):684-91.

Familial visceral neuropathy with neuronal intranuclear inclusions: diagnosis by rectal biopsy.

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Department of Internal Medicine, University of Michigan Hospital, Ann Arbor.


A family with a visceral neuropathy manifested as chronic idiopathic intestinal pseudo-obstruction is reported. Diagnoses were made histologically by simple rectal biopsy. Discrete eosinophilic intranuclear inclusions, diagnostic of a disease known as neuronal intranuclear inclusion disease, were found in the submucosal ganglion cells. Abnormalities of the autonomic nervous system were identified by pupillary examination and electroretinography. In this family, three of four siblings were affected by the disease, which is apparently transmitted from the paternal side. This pedigree was unique for several reasons: (a) diagnosis in multiple members of two generations indicates that this familial visceral neuropathy was expressed in an autosomal dominant manner, (b) central autonomic nervous system abnormalities were detected by eye examination, and

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