| Summary: | Embryonal carcinoma is a type of non-seminomatous germ cell tumor. Pure embryonal carcinoma of testis occurs only in
3–4% cases. We present a case of 34-year-old man with aggressive clinical course. At the time of presentation, he had left
testicular swelling along with supraclavicular mass with extensive metastasis to retroperitoneum, liver, and lung. On gross
pathological examination, specimen showed tumor replacing entire testis with involvement of rete testis, epididymis, and
spermatic cord. It is observed that many patients with a tumor composed predominantly of embryonal carcinoma have
metastasis at the time of diagnosis. Embryonal carcinoma is an aggressive tumor due to its tendency to early
hematogenous spread emphasizing its need for early detection and treatment. The estimation of serum tumor marker
levels is not conclusive in these cases. We are presenting this case for its rarity, and advanced stage of disease with clinical
and histomorphological features.
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