  Here we present detailed analysis of the distinct X-ray emission features
present within the Eastern radio lobe of the Pictor A galaxy, around the jet
termination region, utilising the data obtained from the Chandra X-ray
Observatory. Various emission features have been selected for the study based
on their enhanced X-ray surface brightness, including five sources that appear
point-like, as well as three extended regions, one characterised by a
filamentary morphology. For those, we perform a basic spectral analysis within
the 0.5-7keV range. We also investigate various correlations between the X-ray
emission features and the non-thermal radio emission, utilising the
high-resolution radio maps from the Very Large Array at GHz frequencies. The
main novel findings following from our analysis, regard the newly recognized
bright X-ray filament located upstream of the jet termination region, extending
for at least thirty kiloparsec (projected), and inclined with respect to the
jet axis. For this feature, we observe a clear anti-correlation between the
X-ray surface brightness and the polarized radio intensity, as well as a
decrease in the radio rotation measure with respect to the surroundings. We
speculate on the nature of the filament, in particular addressing a possibility
that it is related to the presence of a hot X-ray emitting thermal gas, only
partly mixed with the non-thermal radio/X-ray emitting electrons within the
lobe, combined with the reversals in the lobe's net magnetic field.
