Choroid
plexus
papilloma
A Choroid plexus papilloma (CPP) is a a rare, slow-growing,
histologically
benign
intracranial
neoplasm or
tumor that
is commonly
located in
the
ventricular
system of
the choroid
plexus. It
may obstruct
the
cerebrospinal
fluid flow,
causing
increased
intracranial
pressure.
Pathophysiology
The tumor is neuroectodermal in origin and similar in
structure to
a normal
choroid
plexus. They
may be
created by
epithelial
cells of the
choroid
plexus.
Frequency
and age
affected
Internationally tumors of the choroid plexus are rare,
accounting
for 0.4-0.6%
of all
intracranial
neoplasms.
It most
commonly
affects
young
children
under the
age of 5
with a mean
patient age
of 5.2
years.
Signs and
symptoms
Signs of the tumor resulting from increased intracranial
pressure is
present in
91% of
patients,
with
Vomiting,
homonymous
visual field
defects and
headache the
most common
symptoms.
Surgical
treatment
Choroid plexus papillomas are benign tumors that are usually
cured by
surgery;
malignant
progression
has been
rarely
reported. |