higher density of tumor cells and vessels
than in normal testicular tissue
31,32
.
MRI is usually used as a complementary
imaging technique in those exceptional
cases in which scrotal ultrasound
findings are inconclusive or non-
diagnostic, in the evaluation of abdominal
cryptorchidism and in the extension of a
histologically confirmed malignant
testicular tumor
23
.
Therapeutic management requires
clinical suspicion and ultrasonographic
confirmation of an intratesticular lesion,
determination of serum markers (alpha-
fetoprotein and beta subunit of human
chorionic gonadotropin, hormone levels
(testosterone) and lactate
dehydrogenase. Percutaneous testicular
biopsy is not usually performed due to
the risk of lymphatic tumor seeding
23,33
.
The traditional treatment of choice for
testicular masses is radical orchiectomy;
however, due to the benignity in children,
in recent years the medical-surgical
approach has been re-evaluated, where
lumpectomy (conservative surgery) is
considered depending on tumor markers
(alpha-fetoproteins or beta subunit of
human chorionic gonadotropin), tumor
size and histological findings
9
.
Testicular sparing surgery is limited in
infants in whom normal testicular tissue
is seen to be salvageable by ultrasound
and tumor markers within normal serum
values, i.e. in those where malignancy is
not suspected. In some cases
intraoperative frozen section
examination can be used to confirm a
pathological tumor, as well as to justify
the choice of conservative surgery
9,19,23
.
Cases of malignant testicular tumors are
rare and usually occur in older children,
so radical orchiectomy with
postoperative follow-up is recommended
in patients 5 years of age or older
9
.
When specific tumor markers are found
to be increased, radical inguinal
orchiectomy is considered. In addition,
adjuvant chemotherapy is required in
malignant testicular tumors
9,23
. Some
short- and long-term treatment-related
complications may occur. Adverse effects
include the risk of infertility,
hemorrhagic cystitis and the
development of a secondary
malignancy
10
.
After surgical treatment, infants should
be monitored with physical examination,
scrotal ultrasound and tumor
markers
23,34,35
. Especially in the case of
malignant testicular tumors, follow-up is
performed according to the type of
testicular cancer (seminoma, non-
seminoma or advanced stages) and is
based on evaluating four parameters:
physical examination, tumor markers,
chest x-ray and abdomino-pelvic
computed axial tomography, which,
depending on the year of follow-up, are
requested more and more frequently. In
advanced stages, chest or brain
tomography may be requested in
particular cases
26
.
On the other hand, paratesticular tumors
are a heterogeneous group of infrequent
tumors. Approximately 70% of
paratesticular tumors are benign, among
which lipomas, leiomyoma, dermoid cyst
and adenomatoid tumors are the most
frequent
36,37
. However, malignant tumors
represent the other 30% and
rhabdomyosarcoma and leiomyosarcoma
are common, in some cases malignant
mesothelioma and adenocarcinoma of
the rete testis and epididymis have been
described
36
.