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Female Breast Lower Outer Quadrant Cancer C0153553

Published: July 22, 2026Updated: August 20, 2026

A cancer that forms in the lower outer region of the female breast. It affects females and requires diagnosis based on tumor size and type. Treatment depends on cancer stage and may include multiple approaches.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
C80.1
ICD-11
2A00.0
Body system
oncologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Breast lump

!

Axillary lymphadenopathy

Generalized symptoms

(oncologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Breast pain

(oncologic)

Nipple discharge

(oncologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Combination drug regimen with regular assessment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Mastectomy with Reconstruction Options

Complete breast removal with immediate or delayed reconstructive surgery, offering definitive treatment with aesthetic outcomes.

surgical
3

Post-Surgical Radiation Therapy

Radiation treatment administered after mastectomy in high-risk cases to reduce chest wall and regional recurrence.

procedure

Additional treatment options

HER2-Targeted Therapy

Biologic agents targeting HER2 protein overexpression, typically combined with chemotherapy for HER2-positive tumors.

medication

Adjuvant Endocrine Therapy

Long-term hormonal manipulation through aromatase inhibitors or selective estrogen receptor modulators to prevent recurrence.

medication

Psycho-Oncology Support

Specialized counseling addressing cancer diagnosis, treatment decisions, body image concerns, and emotional adjustment throughout the cancer journey.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Female Breast Lower Outer Quadrant Cancer C0153553?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Female Breast Lower Outer Quadrant Cancer C0153553. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy