Pancreatic collision tumor of ductal adenocarcinoma and neuroendocrine tumor-A rare case report.

A collision tumor is composed of two adjacent histological distinct neoplasms without the histological admixture of cell types in the same organ or tissue. It is rare in pancreas. Herein we report an unusual case of a mixed malignant neuroendocrine tumor (NET) and ductal adenocarcinoma of pancreas in a 24 year old male who presented with history abdomen pain.

Gastric tuberculosis masquerading as advanced malignancy in a young male.

Gastrointestinal tuberculosis usually involves ileum and cecum in three-fourth of cases. Isolated gastric involvement is uncommon in the absence of pulmonary tuberculosis or immunodeficiency in affected individuals. Here, we describe a case of tuberculosis involving stomach and colon in an immunocompetant young patient who presented to us with dyspeptic symptoms, pain abdomen, and melena.

Ultrasonographic demonstration of inner tube sign: a tropical dilemma.

Introduction: Ultrasonographic demonstration of intra biliary parallel lines or "inner tube sign" is considered diagnostic for biliary ascariasis in regions where ascariasis is endemic.

Patients & Methods: 148 patients with inner tube sign on ultrasonography were evaluated. In most, diagnosis was confirmed by ultrasonographic demonstration of restitution of normal appearance of bile duct with passage of round worms in vomitus or faeces.