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Published 2 February 2009
Cite this as: BMJ Case Reports 2009 [doi:10.1136/bcr.09.2008.0945]
Copyright © 2009 by the BMJ Publishing Group Ltd.

Rare disease

A novel phenotype of sporadic Creutzfeldt–Jakob disease

G Giaccone1, Giuseppe Di Fede1, Michela Mangieri1, Lucia Limido1, Raffaella Capobianco1, Silvia Suardi1, Marina Grisoli1, Simona Binelli1, Paolo Fociani2, Orso Bugiani1, Fabrizio Tagliavini1

1 Fondazione IRCCS Istituto Neurologico Carlo Besta, via Celoria 11, Milan, 20133, Italy
2 Università di Milano, Ospedale Luigi Sacco, via Grassi 74, Milano, 20157, Italy

Correspondence to:
giaccone{at}istituto-besta.it

SUMMARY

An atypical case of sporadic Creutzfeldt–Jakob disease (CJD) is described in a 78-year-old woman homozygous for methionine at codon 129 of the prion protein (PrP) gene. The neuropathological signature was the presence of PrP immunoreactive plaque-like deposits in the cerebral cortex, striatum and thalamus. Western blot analysis showed a profile of the pathological form of PrP (PrPSc) previously unrecognised in sporadic CJD, marked by the absence of diglycosylated protease resistant species. These features define a novel neuropathological and molecular CJD phenotype.


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