Abstract:
:Autosomal recessive polycystic kidney disease (ARPKD) is caused by genetic mutations of the gene encoding fibrocystin, and is characterized by the collecting duct cysts and congenital hepatic fibrosis. We report an autopsy-proven case of ARPKD in a 77-year-old male who presented with rapidly progressive renal and liver dysfunction. He had refused hemodialysis, and died 4 months later. At autopsy, both kidneys were enlarged with numerous small cysts throughout the cortex, which were revealed immunohistochemically to be the collecting ducts. Liver involvement was characterized by ductal plate malformation accompanied with portal fibrosis. The morphological appearances were compatible with ARPKD and the negative immunostaining for fibrocystin in the collecting ducts and bile ducts confirmed the diagnosis. ARPKD is known to occur in the neonatal period or in infancy with a high mortality rate. Although some patients who survive infancy are expected to live longer into young adulthood, most patients with ARPKD die of renal and hepatic failure in their childhood. The present case is extremely exceptional, in that no clinical symptoms suggestive of ARPKD were noticed until old age, and suggests that the disease spectrum of ARPKD is variable, and that a slowly progressive form of ARPKD may not be diagnosed until old age.
journal_name
Pathol Intjournal_title
Pathology internationalauthors
Taneda S,Honda K,Aoki A,Nitta K,Tamura T,Yoshioka Y,Oda Hdoi
10.1111/pin.12011subject
Has Abstractpub_date
2012-12-01 00:00:00pages
811-6issue
12eissn
1320-5463issn
1440-1827journal_volume
62pub_type
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