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Neuroradiologic and neurophysiologic findings of neuralgic amyotrophy.
[neuralgic amyotrophy]
Neuralgic
amyotrophy
(
NA
)
is
a
distinct
clinical
syndrome
that
is
characterized
by
the
acute
onset
of
shoulder
and
arm
pain
,
weakness
,
and
sensory
loss
.
The
purpose
of
this
study
was
to
assess
the
clinical
characteristics
of
NA
and
to
determine
appropriate
diagnostic
modalities
.
We
reviewed
the
medical
and
radiologic
records
of
10
patients
diagnosed
with
NA
retrospectively
.
Neurophysiologic
studies
were
performed
in
all
patients
and
magnetic
resonance
neurography
was
performed
in
the
last
three
patients
.
A
total
of
10
patients
were
enrolled
in
our
study
.
All
patients
had
clinical
findings
compatible
with
NA
.
The
most
common
clinical
presentation
was
severe
shoulder
pain
and
weakness
in
seven
patients
(
70
%
)
.
Neurophysiologic
study
results
were
abnormal
in
all
patients
.
Brachial
plexus
magnetic
resonance
neurography
showed
that
the
affected
brachial
plexus
showed
a
thickened
and
hyper-intense
trunk
.
All
patients
were
managed
conservatively
with
analgesics
and
physical
therapy
.
The
pain
and
paralysis
of
all
patients
improved
clinically
within
6
months
of
the
initiation
of
treatment
.
NA
is
a
rare
disease
but
the
symptoms
of
NA
can
mimic
those
of
other
diseases
.
Neurophysiologic
studies
and
magnetic
resonance
neurography
are
extremely
useful
tools
for
the
diagnosis
of
NA
.
Diseases
Validation
Diseases presenting
"weakness"
symptom
achondroplasia
adrenomyeloneuropathy
alexander disease
aniridia
aromatase deficiency
coats disease
congenital toxoplasmosis
epidermolysis bullosa simplex
esophageal adenocarcinoma
familial hypocalciuric hypercalcemia
familial mediterranean fever
focal myositis
gm1 gangliosidosis
hydrocephalus with stenosis of the aqueduct of sylvius
inclusion body myositis
locked-in syndrome
lymphangioleiomyomatosis
malignant atrophic papulosis
neuralgic amyotrophy
pendred syndrome
pleomorphic liposarcoma
pyomyositis
pyruvate dehydrogenase deficiency
sneddon syndrome
systemic capillary leak syndrome
thoracic outlet syndrome
triple a syndrome
typhoid
von hippel-lindau disease
waldenström macroglobulinemia
werner syndrome
x-linked adrenoleukodystrophy
This symptom has already been validated
