Tracheal regeneration: evidence of bone marrow mesenchymal stem cell involvement.

Objectives: Recent advances in airway transplantation have shown the ability of ex vivo or in vivo tracheal regeneration with bioengineered conduits or biological substitutes, respectively. Previously, we established a process of in vivo-guided tracheal regeneration using vascular allografts as a biological scaffold. We theorized that tracheal healing was the consequence of a mixed phenomenon associating tracheal contraction and regeneration.

A wandering spleen presenting as a hypogastric mass: case report.

Wandering spleen is a rare condition characterized by the absence or underdevelopment of one or all of the ligaments that hold the spleen in its normal position in the left upper quadrant of the abdomen. It is an uncommon clinical entity that mainly affects children. Among adults it most frequently affects women of reproductive age, in whom acquired laxity of the splenic ligaments is usually the cause.

Exceptional cause of bowel obstruction: rectal endometriosis mimicking carcinoma of rectum--a case report.

Endometriosis with intestinal serosal involvement is not uncommon in women of childbearing age. However, endometriosis presenting as colon obstruction is rare and occurs in less than 1% of cases. The Lack of pathognomonic signs makes the diagnosis difficult, mostly because the main differential diagnosis is with neoplasm, even during the intervention.

Hemothorax as the clinical presentation of a pancreaticopleural fistula: report of a case.

Pancreaticopleural fistula is a rare complication of acute pancreatitis with pancreatic pseudocyst. We report the case of a 39-year-old man admitted for respiratory distress. Chest X-ray showed a pleural effusion, and thoracentesis yielded bloody fluid.