Lobular Breast Cancer: Symptoms, Causes, Diagnosis and Treatment

Written by Medicover Team and Medically Reviewed by Dr Kovvuru Bhaskar Reddy , Oncologists

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Lobular Breast Cancer is a type of breast cancer that starts in the lobules, the milk-producing glands of the breast. It is one of the most common forms of invasive breast cancer and may spread to nearby tissues if left untreated. Early detection and appropriate treatment are important for improving outcomes and supporting long-term breast health.

What are the Types of Lobular Breast Cancer?

Lobular Breast Cancer includes both non-invasive and invasive forms, with several histological variants.

Lobular Carcinoma In Situ (LCIS)

LCIS is a non-invasive condition involving abnormal cells within the lobules. Although not considered cancer, it increases the risk of developing invasive breast cancer in the future.

Non-invasive lesion
Risk marker for future breast cancer
Usually discovered incidentally

Invasive Lobular Carcinoma (ILC)

This form spreads beyond the lobules into surrounding breast tissue and may metastasize to other parts of the body.

Most common invasive lobular cancer
Can spread to lymph nodes
Requires comprehensive treatment

Variants of Invasive Lobular Carcinoma

Several less common variants exist and may differ in appearance and behavior.

Classic variant
Pleomorphic variant
Solid variant
Alveolar and tubulolobular variants

What are the Symptoms and Warning Signs of Lobular Breast Cancer?

Symptoms may be subtle, especially in the early stages. Some individuals may not notice any changes until the disease has progressed.

Regular breast examinations and screening mammograms play an important role in early detection.

Common Symptoms

Thickening of an area of the breast
Fullness or swelling in part of the breast
Changes in breast texture
Breast asymmetry
Nipple inversion
Mild breast discomfort

Severe Symptoms

Noticeable breast enlargement
Skin dimpling or thickening
Persistent breast pain
Nipple discharge
Enlarged lymph nodes in the armpit
Symptoms of metastatic disease

What are the Common Causes and Risk Factors of Lobular Breast Cancer?

Lobular Breast Cancer develops due to genetic mutations that cause breast cells to grow and divide uncontrollably. The exact cause is often unknown, but several factors can increase risk.

Hormonal, genetic, and lifestyle factors all contribute to disease development.

Causes

Genetic mutations in breast cells
Abnormal cell growth within breast lobules
Hormonal influences
Inherited genetic susceptibility

Risk Factors

Increasing age
Female sex
Family history of breast cancer
Personal history of LCIS
Inherited gene mutations such as BRCA2
Hormone replacement therapy
Dense breast tissue
Postmenopausal status

When to See a Doctor for Lobular Breast Cancer?

Any persistent breast changes, thickening, swelling, nipple abnormalities, or unusual findings on breast screening should be evaluated by a Breast Surgeon, Surgical Oncologist, or Medical Oncologist. Early diagnosis improves treatment options and outcomes.

You should see a doctor if you notice:

Breast thickening or fullness
Changes in breast shape or size
Nipple inversion or abnormal discharge

Seek prompt medical evaluation if:

A suspicious breast abnormality develops
Enlarged lymph nodes appear in the armpit
Symptoms continue to worsen

These could be signs of Lobular Breast Cancer or another breast condition requiring specialized assessment.

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How is Lobular Breast Cancer Diagnosed?

Diagnosis involves breast imaging, tissue sampling, and pathological evaluation. Because Lobular Breast Cancer may be difficult to detect on routine imaging, additional studies are sometimes required.

Accurate diagnosis helps determine the stage of disease and guide treatment decisions.

Diagnostic Methods

Clinical breast examination
Mammography
Breast ultrasound
Breast MRI
Core needle biopsy
Pathological and receptor testing
Staging scans when indicated

What are the Treatment Options for Lobular Breast Cancer?

The treatment landscape for lobular breast cancer is multifaceted, often involving a combination of surgery, radiation therapy, chemotherapy, hormone therapy, and targeted therapies.

Surgical Options for Lobular Breast Cancer

Surgery remains a cornerstone of treatment, with options including lumpectomy, mastectomy, and sentinel lymph node biopsy. The choice of surgical intervention depends on the stage of the cancer, the size of the tumor, and patient preferences.

Additional Therapies

Radiation Therapy: Often recommended following surgery to eliminate any remaining cancer cells and reduce the risk of recurrence.
Chemotherapy: Used in cases where cancer has spread beyond the breast and lymph nodes or in high-risk situations.
Hormone Therapy: Particularly effective in lobular breast cancer due to its tendency to be hormone receptor-positive, blocking the cancer's ability to use hormones to grow.
Targeted Therapy: Involves drugs that specifically target cancer cell mechanisms, offering a more personalized treatment approach.

The integration of these therapies into a cohesive treatment plan requires careful consideration of the patient's overall health, cancer stage, and individual treatment goals.

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What is the Recovery Process for Lobular Breast Cancer?

Recovery depends on the stage of cancer, treatment received, and overall health of the individual. Many patients achieve long-term remission with appropriate therapy and follow-up care.

Regular surveillance is important for monitoring recurrence and managing treatment-related effects.

Recovery Includes

Regular oncology follow-up visits
Routine breast imaging and surveillance
Management of treatment-related side effects
Physical rehabilitation when needed
Emotional and psychological support
Healthy lifestyle and risk reduction strategies

Frequently Asked Questions

1. What are the symptoms of lobular breast cancer?

Symptoms include a lump in the breast, thickening of the breast tissue, and changes in breast shape.

2. What causes lobular breast cancer?

It is caused by abnormal cell growth in the lobules of the breast.

3. What is the prognosis for Lobular Breast Cancer?

The prognosis depends on factors such as the stage, tumor size, lymph node involvement, and response to treatment. Early-stage cancers generally have a favorable outlook.