What This Result Actually Means
Ultrasound and other scans cannot determine whether a lesion is cancerous — that requires a tissue sample (biopsy). What scans do is classify lesions by their radiological features into risk categories. Common classification systems: BIRADS 4/5 (breast imaging) — BIRADS 4 = suspicious, biopsy needed; BIRADS 5 = highly suspicious. TIRADS 4/5 (thyroid) — similar risk classification for thyroid nodules. PIRADS 4/5 (prostate MRI). An "irregular", "heterogeneous", "vascular", or "poorly defined" mass on scan means the sonographer cannot confidently call it benign — not that it is cancer. Studies show that even BIRADS 4 lesions (the "suspicious" category) are benign on biopsy approximately 70–80% of the time.
Frequently Asked Questions
Does a BIRADS 4 or TIRADS 4 finding mean I have cancer?
No. BIRADS 4 is divided into 4A, 4B, and 4C — cancer probabilities of roughly 2–10%, 10–50%, and 50–95% respectively. Even BIRADS 4C (the highest sub-category short of 5) means there is a meaningful chance the lesion is benign. TIRADS 4 similarly spans a wide range. The point is: biopsy resolves the question definitively. "Suspicious" means "needs further investigation" — not "cancer confirmed."
How long does a biopsy result take?
In Nigeria, biopsy results from most private pathology laboratories are available in 7–10 working days. Some specialised molecular tests (hormone receptor status, HER2 for breast cancer) may take an additional 10–14 days. Ask the receiving laboratory for an exact timeline and obtain their direct contact number — you should be calling them if you have not heard within the stated timeframe.
What if the biopsy comes back benign — am I in the clear?
For most BIRADS 3 and 4A lesions with a benign biopsy, the answer is essentially yes — with follow-up imaging in 6 months to confirm stability. For BIRADS 4C or 5 lesions where biopsy shows benign tissue, the radiologist may recommend excision biopsy (surgical removal) because of the possibility of sampling error — the needle may have missed the suspicious area. Follow your specialist's advice carefully in this scenario.
Should I tell my employer if I am waiting for a biopsy result?
You are not obligated to disclose a pending medical investigation to an employer. However, if the anxiety is significantly affecting your work performance, speaking to a trusted manager or HR in general terms ("I am awaiting a medical result and it is affecting my concentration") may allow adjustments without full disclosure. The results and their implications are entirely private until you choose to share them.