Hormone Excretion and Bioassay of Extirpated Tumor in Teratoma of the Testis

FROM A LABORATORY aspect of the case reported herein, one is impressed with the value of the biological method of testing in teratoma of the testes. In the light of the results obtained from serial examinations, it must be recognized as a valuable diagnostic procedure and as an assay of the effectiveness of treatment. This case is presented because it afforded such correlation of the bioassays and its clinical course, and assay of the extirpated tumor has suggested an interrelationship between hormone excretion and existing neoplasm. L.S., a male, age 32, who was admitted to the hospital on 3/20/39, complained of persistent cough, joint pains and sore throat of 3 months duration. Hospitalization was advised for investigation, as there were remissions during that period of illness. Swelling of the right testicle had occurred 3 days prior to admission.