TESTICULAR
TUMOURS
These are seen as 1% of all tumours in the
male the majority are malignant tumours. The cause is unknown, however we do
know that germ cell tumours occur in cryptorchids. No environmental or
occupational factors have been identified.
Malignant neoplasms of the testes may be
of germinal or non-germinal cell origin. The non-germinal cell tumours known as
Intestitial cell tumours (Leydig cell tumours) are rare tumours (5%) and may
produce excessive androgenizing hormones causing verilism and precocious
puberty in young males, in adults they present with impotence and
gynaecomastia.
The malignant germinal tumours of the
testis are most common (90%) and originate from the totipotential cells of
seminiferous tubules and occur most often between 20 to 35 years. Germinal
testicular tumours are classified as seminoma, embryonal carcinomas and
choriocarcinomas.
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