Esophageal Metastases from Breast Carcinoma: a Rare Delayed Metastases After 15 Years

Metastatic Breast Cancer to the Esophagus Causing Pseudoachalasia

A unique case involving a 65-year-old woman with recurrent hormone-positive, HER-2-negative breast cancer stage IV (T2N2M1) with known metastases to the bone presented with worsening dysphagia and esophageal wall thickening on imaging masquerading as achalasia. However, endosonography (EUS)-guided biopsy of the esophagus wall demonstrated metastatic breast cancer to the esophagus causing pseudoachalasia.

Widespread Metastasis to the Stomach 10 Years After Primary Breast Cancer: A case report and review of the literature

RATIONALE

Breast cancer is a common malignant tumor. The most common metastatic sites of breast cancer are the bone, brain, liver and lung, and gastrointestinal metastases are rare. Considering that the median time interval from the initial breast cancer diagnosis to stomach metastasis is 77.5 months, gastrointestinal metastases are rarely observed 10 years after primary breast cancer.

PATIENT CONCERNS

Here, we present a 63-year-old female with unusual endoscopy results that revealed scattered polyps and mucosal infiltration throughout the stomach, which were later confirmed to be metastatic lobular carcinoma of the breast that had been surgically removed 10 years earlier.

DIAGNOSIS

The patient was diagnosed with gastric metastases of breast cancer by immunohistochemistry.

INTERVENTIONS

The patient underwent endocrine therapy with palbociclib and tamoxifen.

OUTCOMES

After 1 year of endocrine therapy, the symptoms of upper abdominal discomfort and fatigue were relieved and a new gastroscopy revealed there had been no significant progression of the gastric metastasis. According to the Response Evaluation Criteria in Solid Tumors (RECIST), the patient reached a state of stable disease.

LESSONS

Gastric metastases of breast cancer are rare in the clinical setting. However, considering the possibility of gastric metastases from breast cancer and performing an upper endoscopy are crucial for patients who present with any subtle gastric symptoms and have a past medical history of breast cancer, even if the breast cancer occurred more than 10 years ago.