Breast Cancer Misdiagnosis Lawyer New York

How Breast Cancer Is Diagnosed

Breast cancer diagnosis involves multiple steps and specialists:

• Screening mammography: Regular mammograms (X-rays of the breast) are the primary screening tool for breast cancer. They can detect tumors before they are palpable. The standard of care for screening mammography includes proper positioning, adequate compression, and interpretation by a qualified radiologist.
• Diagnostic mammography: More detailed mammograms performed when a screening mammogram shows an abnormality or when a patient has symptoms (lump, skin changes, nipple discharge). Additional views and magnification are used to evaluate suspicious areas.
• Ultrasound: Used to evaluate whether a mass is solid (potentially cancerous) or cystic (fluid-filled, usually benign). Often used for women with dense breast tissue, where mammography is less sensitive.
• MRI: Used for high-risk patients (BRCA mutation carriers, strong family history) or to evaluate the extent of disease in newly diagnosed cancer. More sensitive than mammography but with a higher false-positive rate.
• Biopsy: The definitive diagnosis of breast cancer requires a tissue biopsy. Types include fine needle aspiration (FNA), core needle biopsy (the standard for breast cancer diagnosis), and surgical (excisional) biopsy. The tissue is then examined by a pathologist.
• Pathology: A pathologist examines the biopsy tissue under a microscope to determine whether cancer is present, what type it is (ductal, lobular, inflammatory), the grade (how aggressive it appears), and whether it is hormone receptor-positive (ER/PR) or HER2-positive — information that guides treatment.
• Genetic testing: BRCA1/BRCA2 testing for patients with a family history or other risk factors.

Common Ways Breast Cancer Is Misdiagnosed

Breast cancer misdiagnosis can occur at any point in the diagnostic process:

• Mammography misinterpretation: The radiologist fails to identify a visible tumor on the mammogram. Studies have shown that approximately 10-30% of breast cancers are missed on screening mammography. Some misses are due to dense breast tissue obscuring the tumor; others are due to radiologist error.
• Failure to compare with prior mammograms: A subtle change from a prior mammogram may be the only sign of early cancer. If the radiologist does not compare current images with prior studies, a slow-growing tumor may be missed.
• Failure to recommend additional imaging: When a mammogram shows an abnormality, the radiologist should recommend additional views, ultrasound, or biopsy. Failure to do so may constitute negligence.
• Failure to biopsy a suspicious mass: When a patient or doctor feels a lump, the standard of care generally requires further evaluation — even if the mammogram appears normal. A doctor who dismisses a palpable lump without biopsy may be negligent.
• Biopsy errors: The biopsy may sample the wrong area (missing the tumor), or the sample may be inadequate for diagnosis. This can lead to a false-negative result — the patient is told she does not have cancer when she actually does.
• Pathology errors: The pathologist misinterprets the biopsy tissue — diagnosing cancer when it is not present (false positive) or missing cancer that is present (false negative). Pathology errors are less common but can be devastating.
• Failure to communicate results: The radiologist identifies an abnormality but the result is not communicated to the patient or her doctor. The patient does not know she needs follow-up, and the cancer goes untreated.
• Failure to follow up: The patient is told she needs a follow-up appointment or biopsy, but no one ensures that the follow-up occurs. The cancer goes untreated.
• Diagnosing a young woman with a benign condition: Breast cancer in women under 40 is less common, and doctors may attribute a lump to a fibroadenoma or cyst without performing appropriate diagnostic testing.

Mammography Errors and Radiology Negligence

Radiology errors are one of the most common causes of breast cancer misdiagnosis. The standard of care for mammography interpretation includes:

- Proper technique: The mammogram must be properly positioned and adequately compressed. Poor technique can obscure tumors. - Comparison with prior studies: The radiologist should compare current mammograms with all available prior mammograms to detect subtle changes. - Use of BIRADS classification: The Breast Imaging Reporting and Data System (BIRADS) classifies mammographic findings from 0 (incomplete, needs additional imaging) to 6 (known biopsy-proven malignancy). A BIRADS 0 finding requires additional imaging; a BIRADS 4 or 5 finding requires biopsy. - Adequate time and attention: Radiologists who read too many mammograms too quickly are more likely to miss cancers. The standard of care requires adequate time for each study. - Communication of results: The radiologist must clearly communicate findings and recommendations to the referring physician and ensure that the patient is notified.

When a radiologist misses a visible tumor, fails to compare with prior studies, fails to recommend additional imaging or biopsy, or fails to communicate results, it may constitute negligence.

Biopsy and Pathology Errors

Even when a suspicious mass is identified, errors can occur in the biopsy and pathology process:

Biopsy errors: - Sampling the wrong area — the needle does not reach the tumor - Inadequate sample size — the tissue is insufficient for diagnosis - Failure to use imaging guidance (ultrasound or stereotactic guidance) for non-palpable masses - Failure to perform a core needle biopsy when indicated (instead of less reliable FNA)

Pathology errors: - Misinterpreting benign tissue as cancer (false positive) — leading to unnecessary treatment - Misinterpreting cancer as benign (false negative) — the most dangerous error, as the cancer goes untreated - Misclassifying the type or grade of cancer — leading to inappropriate treatment - Failing to test for hormone receptor status (ER/PR) or HER2 status — information critical for treatment planning

Pathology errors are often caused by inadequate training, fatigue, or workload pressures. An independent pathologist should review the slides in any case of suspected pathology error.

When Breast Cancer Misdiagnosis Constitutes Malpractice

Breast cancer misdiagnosis constitutes medical malpractice when a healthcare provider deviated from the standard of care and that deviation caused harm. This includes:

• Radiology errors: The radiologist missed a visible tumor on mammography, failed to compare with prior studies, failed to recommend additional imaging or biopsy, or failed to communicate results.
• Failure to biopsy: A doctor failed to biopsy a suspicious mass or palpable lump, or failed to follow up on an abnormal mammogram.
• Biopsy errors: The biopsy sampled the wrong area or was inadequate for diagnosis, leading to a false-negative result.
• Pathology errors: The pathologist misinterpreted the biopsy tissue, missing cancer that was present.
• Failure to follow up: The patient was told she needed follow-up, but no one ensured it occurred.
• Failure to communicate: Abnormal results were not communicated to the patient or her doctor.
• Dismissing symptoms: A doctor dismissed a patient's complaints (lump, pain, nipple discharge) without appropriate evaluation, particularly in younger women who are often told they are too young for breast cancer.

The Impact of Delayed Breast Cancer Diagnosis

The impact of a delayed breast cancer diagnosis can be devastating:

- Stage progression: A cancer that could have been diagnosed at stage 1 (5-year survival: 99%) may progress to stage 3 or 4 (5-year survival: 29%) due to delayed diagnosis. - More aggressive treatment: Later-stage cancer requires more aggressive treatment — mastectomy instead of lumpectomy, chemotherapy instead of hormone therapy, radiation in addition to surgery. - Spread to lymph nodes and distant organs: Cancer that has spread to lymph nodes or distant organs (bones, liver, lungs, brain) is much harder to treat and significantly reduces survival. - Reduced survival: The most devastating consequence. A woman who could have been cured may face a terminal diagnosis. - Need for genetic testing and preventive measures: Women with advanced breast cancer may need prophylactic removal of the other breast or ovaries. - Physical and emotional toll: More aggressive treatment causes more side effects — nausea, hair loss, fatigue, lymphedema, premature menopause, and emotional trauma.

Lavern's Law and Your Deadline to File

Breast cancer misdiagnosis cases in New York are subject to Lavern's Law, which provides a discovery rule for cancer cases. Under Lavern's Law:

- You have 2.5 years from the date you discovered (or should have discovered) the misdiagnosis to file a lawsuit. - There is an absolute outer limit of 7 years from the date of the negligent act.

This means that even if years have passed since the misdiagnosis, you may still have a valid claim if you discovered the error recently. For example, if you were diagnosed with advanced breast cancer in 2024 and discovered in 2025 that a radiologist missed a tumor on a 2021 mammogram, you would have 2.5 years from the date of discovery to file — subject to the 7-year outer limit.

Lavern's Law applies only to cancer cases. For non-cancer misdiagnosis, the standard 2.5-year statute of limitations from the date of the negligence applies. [Link to: /misdiagnosis/laverns-law]

Frequently Asked Questions

The value of a medical malpractice case in New York depends on several factors, including the severity of the injury, the strength of liability evidence, and the economic and non-economic damages involved. New York is one of the few states with no caps on medical malpractice damages, meaning there is no artificial limit on what you can recover. Below are typical settlement ranges based on injury severity.