Unusual clinical course, Challenging differential diagnosis, Educational Purpose (only if useful for a systematic review or synthesis)
Jasbir Makker, Niraj Karki, Binita Sapkota, Masooma Niazi, Prospere Remy
Division of Gastroenterology, Department of Medicine, Bronx Lebanon Hospital Center, Bronx, NY, USA
Am J Case Rep 2016; 17:611-615
Gastroesophageal cancers, previously considered rare, are rapidly increasing worldwide. We present here a unique case of gastroesophageal carcinoma with metastasis to the rectum.
CASE REPORT: A 60-year-old female patient presented with constipation, bloating, and weight loss of 4-month duration. She had undergone sleeve gastrectomy 6 years before. Endoscopies performed revealed a friable-looking mucosa in the lower esophagus and a polypoid rectal mass. Histopathological examination from both the esophageal and rectal lesions revealed poorly differentiated adenocarcinoma cells. Immunohistochemistry stain from both specimens was positive for CK7 supporting the gastric site primary with metastasis to the rectum. Further evaluation also revealed metastasis to bone and malignant pleural effusion. Chemotherapy with palliative intent was initiated.
CONCLUSIONS: Colorectal metastasis is commonly seen from cancers of the breast, stomach, melanoma, kidney, prostate, and ovaries. However, colorectal metastasis from gastroesophageal cancer has never been reported in the medical literature. Diagnosis relies on histopathologic examination and immunohistochemical staining of the tumor. Treatment depends on the tumor stage. Tumors with widespread metastatic disease are candidates for palliative chemotherapy.
Keywords: Colonoscopy, Adenocarcinoma - therapy, Endoscopy, Digestive System, Esophageal Neoplasms - therapy, Esophagogastric Junction, Female, Humans, Middle Aged, Rectal Neoplasms - therapy