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Human papillomavirus burden in different cancers in Iran: a systematic assessment.
[esophageal squamous cell carcinoma]
Certain
types
of
human
papillomaviruses
(
HPVs
)
are
undoubtedly
involved
in
genesis
of
human
malignancies
.
HPV
plays
an
etiological
role
in
cervical
cancer
,
but
also
in
many
vaginal
,
vulvar
,
anal
and
penile
cancers
,
as
well
as
head
and
neck
cancers
.
In
addition
,
a
number
of
non-
malignant
diseases
such
as
genital
warts
and
recurrent
respiratory
papillomatosis
are
attributable
to
HPV
.
Moreover
,
HPV
forms
have
detected
in
several
other
cancers
including
esophageal
squamous
cell
carcinoma
,
lung
,
prostate
,
ovarian
,
breast
,
skin
,
colorectal
and
urinary
tract
cancers
,
but
associations
with
etiology
in
these
cases
is
controversial
.
The
aim
of
this
systematic
assessment
was
to
estimate
the
prevalence
of
HPV
infection
and
HPV
types
in
HPV-associated
cancers
,
HPV-related
non-
malignant
diseases
and
in
cancers
that
may
be
associated
with
HPV
in
Iran
.
The
present
investigation
covered
61
studies
on
a
variety
of
cancers
in
Iranian
populations
.
HPV
prevalence
was
77
.
5
%
and
32
.
4
%
in
cervical
cancer
and
head
and
neck
cancers
,
respectively
.
HPV
was
detected
in
23
.
1
%
,
22
.
2
%
,
10
.
4
%
,
30
.
9
%
,
14
%
and
25
.
2
%
of
esophageal
squamous
cell
,
lung
,
prostate
,
urinary
tract
cancers
,
breast
and
skin
cancers
,
respectively
.
HPV
16
and
18
were
the
most
frequent
HPV
types
in
all
cancers
.
The
findings
of
present
study
imply
that
current
HPV
vaccines
for
cervical
cancer
may
decrease
the
burden
of
other
cancers
if
they
are
really
related
to
HPV
.
Diseases
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"but associations with etiology in these cases is controversial"
symptom
esophageal squamous cell carcinoma
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