What is the main focus of the BHCG Tumor Marker?

The BHCG Tumor Marker, or Beta Human Chorionic Gonadotropin, primarily focuses on detecting and monitoring testicular and ovarian tumors. This marker is produced by the placenta during pregnancy, but in the context of tumor markers, elevated levels can indicate the presence of certain germ cell tumors in men and can also be associated with certain types of ovarian tumors in women.

Elevated BHCG levels are particularly useful in diagnosing conditions like testicular cancer and gestational trophoblastic disease, as these cancers can produce this hormone. Monitoring BHCG levels after treatment can also help assess the effectiveness of treatment or detect any recurrence of the tumor.

While there are tumor markers specific to breast cancer, cervical cancer, and colon cancer, BHCG is specifically linked to testicular and ovarian tumors, making this answer correct in the context of its primary focus.