Gastroesophageal Junction Adenocarcinoma C1332166
A cancer that develops at the junction where the esophagus meets the stomach. Usually seen in adults and may be treated with surgery, chemotherapy, or radiation.
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
Dysphagia
Generalized symptoms
(oncologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Heartburn
(gastrointestinal)Weight loss
(gastrointestinal)Early satiety
(gastrointestinal)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Esophagectomy
Surgical removal of the esophagus and reconstruction, considered the primary curative approach for localized gastroesophageal junction adenocarcinoma. Various surgical approaches available based on tumor location and patient factors.
Medication management with follow-up
Active treatment with regular monitoring by a healthcare provider is recommended.
Perioperative chemotherapy
Systemic chemotherapy administered before and/or after surgery to improve outcomes in resectable disease. Commonly used regimens include platinum-based combinations with fluoropyrimidines.
Additional treatment options
HER2-directed targeted therapy
For HER2-overexpressing tumors, trastuzumab combined with chemotherapy provides targeted treatment approach. Biomarker testing must be performed on biopsy or surgical specimen.
medicationNutritional optimization
Preoperative nutritional support to optimize surgical outcomes, including dietary counseling, oral nutritional supplements, or enteral feeding when indicated. Postoperative management addresses altered digestion and absorption.
dietaryIntegrative symptom management
Complementary therapies such as acupuncture for chemotherapy-induced nausea, mind-body practices for anxiety, and massage for quality of life improvement used alongside standard treatment.
complementaryWhen 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.
What is Gastroesophageal Junction Adenocarcinoma C1332166?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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