Mucosectomy band ligation as a treatment for in situ esophageal carcinoma.

Esophageal squamous cell carcinoma (ESCC) remains the most prevalent subtype of esophageal cancer worldwide. Major risk factors include chronic alcohol consumption and heavy smoking. We present the case of a 65-year-old male with chronic alcoholism and a 75 pack-year smoking history, admitted for his first hydropic decompensation of alcoholic cirrhosis.

Gastric variceal bleeding as a form of presentation of a pancreatic neuroendocrine tumor.

NETs (neuroendocrine tumors) constitute a heterogeneous group of epithelial-type neoplasms with a predominantly neuroendocrine differentiation. Although the most common locations are the pancreas, digestive tract, and lung, this type of neoplasm can arise in virtually any organ in the body. They are rare tumors with a wide variety of clinical presentations.

Upper gastrointestinal bleeding due to duodenum diverticulum: a challenge for the endoscopist.

An 80-year-old female with a mechanic mitral valve treated with acenocumarol was admitted to the hospital due to tarry stools over the last two days and hemoglobin levels of 5.6 g/dl. She had not biliary pathology.

Acute neutrophilic gastritis induced by nivolumab used as treatment for non- metastatic malignant melanoma.

We present the case of a 47-year-old male with a personal history of radically removed malignant melanoma (pT3bN2M0) who was receiving adjuvant nivolumab for the prevention of recurrence. He was admitted to our service complaining of epigastric pain and hyporexia after receiving the ninth dose of nivolumab. He underwent a preferential esophagogastroduodenoscopy, which showed intense inflammation limited to the stomach.

What are the odds? Duodenum adenocarcinoma as a primary metachronic neoplasia.

We present the case of an 81-year-old male with a history of surgically resected colorectal and bladder cancer, who was admitted to our hospital with a urinary infection. A routine renal ultrasound showed a pelvic cyst and a CT scan confirmed a non-complicated cyst, but a lesion was observed in the left lung. He underwent a PET-CT in which an unexpected enhancement of the small bowel attracted our attention.