Urticaria
is
a
common
skin
condition
encountered
across
various
specialties
in
medicine,
especially
dermatology
and
allergy/immunology
practice.
It
has
heterogeneous
presentation
hence
it
unsurprising
that
many
conditions
may
be
confused
with
urticaria.
present
as
acute
or
chronic
urticaria,
the
latter
can
further
categorised
into
spontaneous
inducible.
In
this
article,
we
explore,
explain,
summarise
lesions
are
considered
mimickers
of
to
promote
understanding
each
highlighted,
improve
recognition,
reduce
misdiagnosis.
Frontiers in Medicine,
Год журнала:
2024,
Номер
10
Опубликована: Янв. 5, 2024
Cutaneous
manifestations
of
hematologic
malignancy
represent
both
a
clinical
challenge
for
the
treating
physician
and
pathophysiological
model
advancing
knowledge
on
individual
neoplasms.
Indeed,
growing
body
evidence
supports
concept
recurrent
molecular
defects
associating
with
specific
features,
as
best
exemplified
by
VEXAS.
Herein
neutrophilic
eosinophilic
dermatoses
potential
interest
hematologists
dermatologists
will
be
reviewed,
including
subcorneal
pustular
dermatosis-type
IgA
pemphigus,
eccrine
hidradenitis,
Sweet’s
syndrome
well
myelodysplasia
cutis
VEXAS,
pyoderma
gangrenosum,
annular
erythema,
dermatosis
hematological
malignancy,
Wells
cutaneous
involvement
in
hypereosinophilic
syndromes.
Possible
management
approaches
are
discussed
each,
emphasizing
scenarios
that
require
treatment
underlying
condition
to
achieve
remission
at
skin
level.
Frontiers in Immunology,
Год журнала:
2024,
Номер
15
Опубликована: Фев. 6, 2024
Chronic
urticaria
(CU)
is
one
of
the
most
common
dermatological
diseases
and
has
a
significant
impact
on
quality
life
patients.
However,
pathogenesis
this
disease
remains
unclear.
Autoimmunity
in
chronic
spontaneous
(CSU)
received
considerable
attention
been
studied
previously.
Atopy
an
important
characteristic
CU;
however,
it
not
fully
recognized.
predisposes
individuals
to
immune
responses
allergens,
leading
type
2
inflammation
immunoglobulin
E
(IgE)
overproduction.
Compared
with
healthy
individuals,
patients
CU
have
higher
proportion
atopy,
atopic
background
correlated
clinical
characteristics
CU.
The
total
IgE
levels
significantly
than
those
individuals.
Although
its
level
that
classic
allergic
diseases,
closely
related
Exogenous
auto-allergens,
specific
IgEs,
which
are
reported,
their
roles
also
being
studied.
Local
systemic
present
This
review
summarizes
current
knowledge
regarding
atopy
CU,
speculating
there
subtypes,
such
as
CSU
or
inducible
(CIndU)
may
be
involved
These
findings
provide
new
perspective
for
comprehensive
understanding
features
further
research
pathogenesis.
Cutaneous
vasculitides
encompass
a
heterogeneous
group
of
clinicopathological
entities,
which
may
occur
as
single-organ
vasculitis
the
skin
or
present
skin-limited
variant
systemic
(i.e.,
ANCA-associated
vasculitis),
and
are
triggered
by
various
factors,
including
infections,
drugs
vaccines.
The
COVID-19
pandemic
has
challenged
us
with
variety
both
disease-
vaccine-associated
manifestations,
vasculitis.
Among
latter,
cutaneous
small-vessel
vasculitis,
previously
known
leukocytoclastic
seems
to
be
most
reported
in
either
scenario,
i.e.,
natural
infection
vaccination.
Vasculopathy
without
true
vasculitic
changes
on
histology
develops
but
minority
cases,
mostly
severe/critical
patients,
appears
result
endothelial
injury
due
pauci-immune
thromboembolic
mechanisms.
Herein,
we
provide
an
overview
available
literature
COVID-19-associated
anti-SARS-CoV-2-vaccine-associated
Although
evidence
is
limited
isolated
reports,
proportion
cases
lacking
histopathological
confirmation,
ample
overlap
pre-pandemic
forms
shown.
Arthritis & Rheumatology,
Год журнала:
2023,
Номер
76(1), С. 1 - 8
Опубликована: Авг. 8, 2023
The
role
of
complement
in
human
autoimmune,
inflammatory,
and
infectious
diseases
is
reviewed,
focusing
on
clinical
applicability.
A
typical
case
presented
which
serum
testing
for
C3
C4
performed
to
help
assess
a
syndrome
with
broad
differential
diagnosis.
review
includes
discussion
deficiency
states,
consumption
by
characterized
immune‐complex
formation
deposition,
usefulness
interpretation
laboratory
tests
complement,
development
drugs
targeting
specific
components
the
pathway
growing
number
indications.
Journal of Translational Autoimmunity,
Год журнала:
2024,
Номер
9, С. 100244 - 100244
Опубликована: Июнь 20, 2024
Lupus
nephritis
(LN)
diagnosis
and
follow-up
requires
noninvasive
biomarkers.
Therefore,
the
added
value
of
coupling
urinary
soluble
(s)CD163/creatinuria
ratio
with
serological
markers
was
evaluated
in
a
real-world
clinical
practice.
To
this
end,
monocentric
retrospective
study
conducted
139
SLE
patients
biopsy-proven
having
an
active
LN
(LN-A,
n
=
63
positive
SLEDAI-renal
score)
or
inactive
(n
76),
as
well
98
non-renal
patients.
The
sCD163/creatinuria
outperformed
for
predicting
LN-A
(AUC>0.972;
p
<
10−4
100
%
specificity
threshold
fixed
at
320
ng/mmol),
monitoring
renal
activity
allowing
prediction
impending
flares
remissions
(AUC
0.789,
10−4).
elevated
spot
proteinuria/creatinuria
(p
8
×
10−6)
10−3)
were
risk
developing
end-stage
kidney
disease
but
cannot
substitute
biopsy
to
discriminate
from
other
glomerulonephritis.
Among
14),
anti-dsDNA
anti-C1q
antibodies
(Abs)
(AUC>0.750
versus
non-LN
patients,
AUC>0.640
LN-IR
patients)
best
predicted
LN-A,
higher
levels
retrieved
class
III/IV
proliferative
LN-A.
In
multivariate
logistic
regression
analysis,
remained
only
statistically
significant
biomarker
predict
0.001).
conclusion,
compared
classical
markers,
provides
additional
parameter
Photodermatology Photoimmunology & Photomedicine,
Год журнала:
2025,
Номер
41(1)
Опубликована: Янв. 1, 2025
We
report
the
case
of
a
46-year-old,
white
Caucasian
female
who
presented
with
5-year
history
severe,
recurrent
episodes
immediate
photosensitivity.
The
patient
developed
pruritic,
erythematous
rash
urticated
plaques
on
exposed
body
sites.
onset
was
within
minutes
sun-exposure.
Occasionally
she
experienced
constitutional
symptoms
fatigue
and
chills.
offset
variable;
would
typically
resolve
hours,
but
more
severe
flares
could
persist
for
days
leaving
purple
discolouration
to
skin.
Episodes
were
not
limited
direct
sun-exposure
alone
also
occur
cloudy
or
through
windows
loose-knit
clothing.
Furthermore,
skin
appeared
become
'hardened'
following
each
exposure,
less
sensitivity
noted
at
affected
sites
number
weeks
afterwards.
Examination
revealed
well-demarcated,
oedematous
across
her
limbs
chest
striking
cut-off
where
photo-occluded
by
socks
(Figure
1).
underwent
phototesting
monochromator
solar
stimulator.
An
response
urticarial
wheals
300,
320,
370
400
nm
indicating
photosensitivity
UVB,
UVA
into
visible
light
spectrum.
2a)
At
24
h,
palpable
erythema
300
320
nm.
Phototesting
simulator
(300–400
range)
produced
wheals.
A
5
x
cm
provocation
test
administered
simulator.
24-h,
there
wealing.
2b)
biopsy
taken
histology
demonstrated
extensive
leukocytoclasis
admixed
neutrophils
in
superficial
dermis
focal
fibrinoid
necrosis
vessels.
Perivascular
lymphocytic
eosinophilic
inflammation
visualised
mid
keeping
vasculitis.
Further
investigations
including
full
blood
count,
renal
liver
function
normal.
IGE
significantly
elevated
(982
kU/L).
Inflammatory
markers
CRP
ESR
elevated.
ANCA,
ANA,
C3,
C4,
Cryoglobulins,
SPEP,
Rheumatoid
Factor
Anti-CCP
all
normal
limits.
Virology
screening
HBV,
HCV
HIV
negative.
Urinalysis
presence
red
cells.
Currently,
is
well-controlled
rigorous
photoprotective
measures
mineral
based
sunscreen
tint
antihistamines.
This
presents
rare
Photo-induced
Urticarial
Vasculitis
(PUV).
There
paucity
data
literature
describing
this
unique
phenomenon.
Solar
urticaria
(SU)
form
chronic
inducible
mean
age
35-years.
Patients
present
pruritic
moments
Diagnosis
confirmed
phototesting.
However,
comparison
case,
SU
mirrors
that
other
forms
dermal
oedema
mixed
neutrophilic,
infiltrate
surrounding
vasculature
[1,
2].
vasculitis
(UV)
hand
stinging,
lesions
often
without
an
identifiable
trigger
last
least
h.
It
generally
classified
normocomplementemic
versus
hypocomplementemic
UV
distinguished
complement
levels
time
acute
presentation.
Ecchymoses
hyperpigmentation
may
be
identified
as
resolve.
Unlike
urticaria,
will
demonstrate
findings
consistent
leukocytoclastic
[3].
highlights
value
raises
question
whether
underreported
phenomenon
due
challenge
obtaining
timely
our
investigation
patients
such
this.
Due
sensitivity,
SPF
insufficient
photoprotection
require
tinted,
protective
clothing
block
light.
Antihistamines
can
prove
helpful
symptom
control.
Recent
evidence
demonstrates
positive
outcomes
use
targeted
monoclonal
antibodies
(e.g.,
omalizumab)
remains
consideration
future
[4,
5].
research
useful
add
establish
true
burden
debilitating
disease.
Study
conception
design:
Eoin
Storan,
collection:
Anna
Wolinska,
Luke
Oonan
analysis
interpretation
results:
draft
manuscript
preparation:
Wolinska.
All
authors
reviewed
results
approved
final
version
manuscript.
Written
informed
consent
has
been
given
publication.
declare
no
conflicts
interest.
Data
available
request
from
authors.