Pathology – MCQ 32 – A 50-year-old male presented with signs and symptoms of restrictive heart disease

A 50-year-old male presented with signs and symptoms of restrictive heart disease. A right ventricular endo-myocardial biospy revealed deposition of extracellular eosionophilic hyaline material. On transmission electron microscopy, this material is most likely to reveal the presence of:
a) Non branching filaments of indefinite length
b) Cross banded fibres with 67 m periodicity
c) Weber Palade bodies
d) Concentric whorls of lamellar structures

Correct answer : a) Non branching filaments of indefinite length

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