CARCINOMA EMBRIONARIO TESTICULAR PDF

Tumor de saco vitelino. Los seminomas no producen AFP. No obstante, cualquier incremento en las concentraciones de marcadores tumorales se deben interpretar con cautela. Atlanta, Ga: American Cancer Society,

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The tumour may present as signs and symptoms relating to the presence of widespread metastases, without any palpable lump in the testis. The clinical features associated with metastasising embryonal carcinoma may include low back pain, dyspnoea , cough, haemoptysis , haematemesis and neurologic abnormalities. The finding of elevated AFP is more suggestive of a mixed germ cell tumour, with the AFP being released by a yolk sac tumour component.

Embryonal carcinoma. The gross examination usually shows a two to three centimetre pale grey, poorly defined tumour with associated haemorrhage and necrosis. The median age at diagnosis is 15 years. Symptoms and signs are varied, and may include sexual precocity and abnormal increased, reduced or absent uterine bleeding. They are generally large, unilateral tumours, with a median diameter of 17 centimetres. Long-term survival has improved following the advent of chemotherapy.

Testicular[ edit ] In the testis pure embryonal carcinoma is also uncommon, and accounts for approximately ten percent of testicular germ cell tumours. However, it is present as a component of almost ninety percent of mixed nonseminomatous germ cell tumours. The average age at diagnosis is 31 years, and typically presents as a testicular lump which may be painful. One fifth to two thirds of patients with tumours composed predominantly of embryonal carcinoma have metastases at diagnosis.

So in the testicle , they are often observed as blue cells attempting to form primitive tubules.

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