The HE4 (Human Epididymis Protein 4) Test is a blood test used to measure the level of HE4 protein, a tumor marker that may be elevated in certain types of ovarian cancer.
HE4 is particularly useful in evaluating women with pelvic masses and helps differentiate between benign and malignant ovarian conditions. It is often used in combination with CA-125 and incorporated into risk assessment models such as the ROMA (Risk of Ovarian Malignancy Algorithm).
The purpose of this test is to:
The HE4 (Human Epididymis Protein 4) test measures the level of HE4 protein in the blood. HE4 is a biomarker that can be elevated in some women with epithelial ovarian cancer, particularly certain subtypes.
The test is primarily used as an aid in monitoring women who have already been diagnosed with ovarian cancer, helping healthcare providers assess response to treatment or monitor for possible disease recurrence. It may also be used alongside other clinical assessments when evaluating an adnexal or ovarian mass.
HE4 is sometimes interpreted together with CA-125 and other clinical information. It is important to note that HE4 is not a standalone screening or diagnostic test for ovarian cancer, and an elevated result does not necessarily mean that cancer is present.
1. What does the HE4 test measure?
The HE4 blood test measures the level of Human Epididymis Protein 4, a biomarker that can be elevated in certain types of epithelial ovarian cancer.
2. Can HE4 diagnose ovarian cancer?
No. HE4 alone cannot diagnose ovarian cancer. Elevated levels can occur for reasons other than cancer, and the result should be interpreted with medical history, imaging, CA-125, and other relevant investigations.
3. Why is HE4 tested along with CA-125?
HE4 and CA-125 provide different biomarker information. When appropriate, healthcare providers may consider both results together with imaging and clinical findings to help assess an ovarian mass or monitor known ovarian cancer.