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Retinal vasoproliferative tumors: comparative clinical features of primary vs secondary tumors in 334 cases.
[coats disease]
To
compare
the
clinical
features
of
primary
vs
secondary
retinal
vasoproliferative
tumors
(
VPTs
)
.
Retrospective
case
series
of
334
tumors
in
295
eyes
of
275
patients
.
Of
275
patients
with
VPT
,
41
%
(
n
=
113
)
were
male
and
59
%
(
n
=
162
)
were
female
,
with
a
mean
age
of
44
years
at
presentation
.
Primary
VPT
occurred
in
80
%
(
n
=
219
)
and
secondary
VPT
,
in
20
%
(
n
=
56
)
of
patients
.
Secondary
VPT
(
n
=
67
)
occurred
in
eyes
with
retinitis
pigmentosa
(
n
=
15
,
22
%
)
,
pars
planitis
(
n
=
14
,
21
%
)
,
Coats
disease
(
n
=
11
,
16
%
)
,
previous
retinal
detachment
surgery
(
n
=
8
,
12
%
)
,
idiopathic
peripheral
retinal
vasculitis
(
n
=
4
,
6
%
)
,
familial
exudative
vitreoretinopathy
(
n
=
3
,
4
%
)
,
and
others
(
n
=
12
,
18
%
)
.
The
mean
interval
between
diagnosis
of
underlying
ocular
condition
and
secondary
VPT
was
160
months
.
Statistically
significant
differences
(
P
<
.
05
)
in
clinical
features
(
primary
vs
secondary
VPTs
)
included
mean
age
at
presentation
(
46
vs
38
years
)
,
visual
symptoms
(
74
%
vs
87
%
)
,
poor
visual
acuity
worse
than
20
/
200
(
15
%
vs
28
%
)
,
bilaterality
(
4
%
vs
20
%
)
,
multifocality
(
5
%
vs
15
%
)
,
postequatorial
tumor
location
(
20
%
vs
33
%
)
,
tumor
basal
dimension
(
6
vs
7
mm
)
,
anterior
chamber
cells
(
16
%
vs
30
%
)
,
and
vitreous
cells
(
19
%
vs
48
%
)
.
Retinal
vasoproliferative
tumor
can
be
primary
(
80
%
)
or
secondary
(
20
%
)
.
Compared
with
primary
VPT
,
secondary
VPT
is
more
often
bilateral
,
multiple
,
and
larger
and
occurs
at
an
earlier
age
associated
with
poorer
visual
acuity
.
Diseases
Validation
Diseases presenting
"tumor basal dimension"
symptom
coats disease
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