Which lab studies are indicated for a transilluminating testicular mass in patients with a suspected hydrocele?

Updated: Oct 28, 2020
  • Author: Jacob C Parke, MD; Chief Editor: Edward David Kim, MD, FACS  more...
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Approximately 10% of patients with testicular teratomas may present with a cystic mass that may transilluminate during the physical examination. Similarly, adults with testicular tumors may present with new-onset scrotal swelling. If this diagnosis is considered, measuring serum alpha-fetoprotein and human chorionic gonadotropin (hCG) levels is indicated to exclude malignant teratomas or other germ cell tumors.

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