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Adrenal imaging.
[adrenal incidentaloma]
The
differentiation
of
adrenal
nodules
is
wide
and
varies
from
primary
benign
neoplasia
,
through
hormone
secreting
lesions
,
to
primary
and
secondary
malignant
masses
.
With
the
rapid
development
of
cross-sectional
imaging
,
incidental
detection
of
adrenal
nodules
has
become
an
everyday
practice
,
leaving
clinicians
with
the
necessity
of
further
investigation
.
In
this
article
,
we
present
the
current
possibilities
of
adrenal
gland
imaging
and
we
propose
a
diagnostic
schema
for
differential
diagnosis
of
incidentaloma
.
Non-contrast
enhanced
computer
tomography
(
CT
)
is
a
modality
of
choice
used
for
the
differential
diagnosis
of
adrenal
lesions
.
It
allows
the
detection
of
95
%
of
adrenal
masses
,
and
the
characterisation
of
most
of
them
.
Magnetic
resonance
imaging
(
MRI
)
is
a
good
modality
for
cases
in
which
CT
examination
can
not
determine
the
character
of
an
adrenal
tumour
.
Nuclear
medicine
study
with
the
use
of
Iodine-
131
meta
iodobenzylguanidine
(
MIBG
)
is
helpful
in
the
diagnosis
of
pheochromocytoma
.
Positron
Emission
Tomography-
Computed
Tomography
(
PET-
CT
)
is
considered
a
useful
method
in
patients
with
a
known
malignancy
history
.
Ultrasound
has
a
low
sensitivity
for
the
detection
of
small
lesions
and
is
not
capable
of
reliable
characterisation
of
visualised
masses
.
However
,
this
technique
plays
an
important
role
in
the
follow-up
of
non-hypersecreting
adrenal
lesions
.
