Challenges, limitations, and pitfalls of PET and advanced MRI in patients with brain tumors: A report of the PET/RANO group
Neuro-Oncology,
Journal Year:
2024,
Volume and Issue:
26(7), P. 1181 - 1194
Published: March 11, 2024
Abstract
Brain
tumor
diagnostics
have
significantly
evolved
with
the
use
of
positron
emission
tomography
(PET)
and
advanced
magnetic
resonance
imaging
(MRI)
techniques.
In
addition
to
anatomical
MRI,
these
modalities
may
provide
valuable
information
for
several
clinical
applications
such
as
differential
diagnosis,
delineation
extent,
prognostication,
differentiation
between
relapse
treatment-related
changes,
evaluation
response
anticancer
therapy.
particular,
joint
recommendations
Response
Assessment
in
Neuro-Oncology
(RANO)
Group,
European
Association
Neuro-oncology,
major
American
Nuclear
Medicine
societies
highlighted
that
additional
value
radiolabeled
amino
acids
compared
MRI
alone
is
outstanding
its
widespread
should
be
supported.
For
steadily
increasing
practice,
Standardization
Subcommittee
Jumpstarting
Tumor
Drug
Development
Coalition
provided
more
recently
an
updated
acquisition
protocol
widely
used
dynamic
susceptibility
contrast
perfusion
MRI.
Besides
acid
PET
other
tracers
techniques
(e.g.
MR
spectroscopy)
are
considerable
interest
increasingly
integrated
into
everyday
practice.
Nevertheless,
shortcomings
which
considered
routine.
This
comprehensive
review
provides
overview
potential
challenges,
limitations,
pitfalls
associated
patients
gliomas
or
brain
metastases.
Despite
issues,
continue
play
indispensable
role
management.
Acknowledging
mitigating
challenges
through
interdisciplinary
collaboration,
standardized
protocols,
continuous
innovation
will
further
enhance
utility
guiding
optimal
patient
care.
Language: Английский
Artificial intelligence-based radiogenomics reveals the potential immunoregulatory role of COL22A1 in glioma and its induced autoimmune encephalitis
Bingchao Yan,
No information about this author
Qian Chen,
No information about this author
Da‐Cheng Wang
No information about this author
et al.
Frontiers in Immunology,
Journal Year:
2025,
Volume and Issue:
16
Published: March 6, 2025
Background
The
tumor
microenvironment
plays
a
crucial
role
in
the
progression
of
both
glioma
and
glioma-induced
autoimmune
encephalitis.
However,
there
remains
significant
lack
effective
therapeutic
targets
for
these
diseases.
Method
We
collected
54
CT
images
patients
encephalitis
patients,
respectively.
Radiomics
features
were
extracted
from
tumors
regions
using
Python,
followed
by
dimensionality
reduction
via
random
forest
lasso
regression,
construction
radiomics-based
risk
scores.
Genomic
data
matched
with
clinical
information
analyzed
to
identify
key
prognostic
genes
significantly
associated
Gene
expression
was
validated
immunohistochemistry
our
samples.
Immune
infiltration
evaluated
five
algorithms
(MCP-counter,
EPIC,
TIMER,
QUANT
IPS).
association
between
hub
immune
checkpoint
markers
as
well
immunoregulation-related
also
Spearman
correlation.
Results
identified
980
radiomics
patient
selected
four
through
regression
build
score.
COL22A1
strongly
correlated
score
gene.
higher
glioblastoma
tissues
cell
lines,
factors
such
age,
WHO
grade,
IDH
mutation
status.
analysis
indicated
associations
diverse
stromal
populations,
including
CD8
+
T
cells,
macrophages,
CAFs.
positively
checkpoints
immune-regulated
genes.
Conclusion
Our
study
highlights
critical
gliomas
glioma-Induced
Autoimmune
Encephalitis,
demonstrating
its
strong
poor
prognosis
involvement
regulation.
Language: Английский
High-grade gliomas with autoimmune encephalitis-like presentation: case report and systematic review of the literature
Neurological Sciences,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 11, 2025
Language: Английский
Mimickers of autoimmune encephalitis: a literature review
Journal of International Medical Research,
Journal Year:
2024,
Volume and Issue:
52(5)
Published: May 1, 2024
Autoimmune
encephalitis
(AIE)
is
a
rapid,
progressive
neurological
disorder
characterized
by
nervous
system
inflammation.
While
the
Graus
criteria
are
best
known
for
AIE
diagnosis,
other
differential
diagnoses
meeting
must
be
considered
before
management.
This
narrative
review
discusses
most
common
etiologies
that
resemble
AIE.
We
suggest
routine
exclusion
of
mimickers
confirming
an
diagnosis.
reviewed
28
studies
including
356
patients.
The
main
initial
diagnosis
was
AIE,
then
paraneoplastic
limbic
and
anti-N-methyl-D-aspartate
receptor
encephalitis.
Only
194
patients
met
possible
criteria.
frequent
conditions
among
total
population
were
dementia,
neurodegenerative
diseases,
psychiatric
functional
disorders.
often
misdiagnosed,
leading
to
unnecessary
treatment.
Despite
publication
criteria,
medical
cases
mimicking
this
condition
being
published.
Many
diseases
entering
could
excluded
through
detailed
history,
examination,
laboratory
analysis,
investigations,
cerebrospinal
fluid
brain
magnetic
resonance
imaging.
However,
some
complied
with
having
concurrent
antineuronal
antibodies,
which
true
mimickers.
suspicion
primarily
clinical,
but
definitive
requires
various
diagnostic
tools.
Language: Английский
Difficulties in differential diagnosis of glial tumors and limbic encephalitis: literature data, clinical observations
Neurology neuropsychiatry Psychosomatics,
Journal Year:
2024,
Volume and Issue:
16(4), P. 54 - 60
Published: Aug. 21, 2024
Temporal
and
parahippocampal
glial
tumors
at
early
morphological
stages
of
their
development
may
mimic
the
clinical
neuroimaging
picture
limbic
encephalitis.
Delayed
diagnosis
glioblastoma
can
have
a
negative
impact
on
prognosis
disease,
which
is
why
there
need
to
find
approaches
for
its
earlier
detection.
The
aim
this
paper
analyze
possible
difficulties
errors
in
differential
autoimmune
encephalitis
(AE)
based
literature
data
our
own
observations.
Features
such
as
onset
disease
young
age,
subacute
symptoms,
response
immunosuppressive
therapy
MRI
imaging
bilateral
T2
hyperintense
changes
areas
are
typical
AE,
but
do
not
exclude
primary
tumor
central
nervous
system.
Therefore,
caution
should
be
exercised
regarding
likelihood
brain
when
patients
any
age
group
present
with
symptoms
characteristic
especially
if
no
specific
AE
antibodies
detected.
To
shorten
time
diagnosis,
multidisciplinary
approach,
critical
analysis
data,
shortening
examination
interval
an
increase
frequency
follow-up
examinations
required.
Language: Английский