Small bowel obstruction caused by peritoneal immunoglobulin g4-related disease mimicking carcinomatosis: case report.
We hereby report a case of diffuse pelvic peritoneal involvement by immunoglobulin G4-related disease (IgG4-RD). Numerous pelvic masses and nodules showing delayed enhancement on enhanced abdominal CT were found to congregate in the pelvic organs of a 57-year-old female presenting with intestinal subocclusion. The differentiation between peritoneal IgG4-RD and pelvic peritoneal carcinomatosis was only made by histopathology and immunohistochemistry performed after surgical resection. Autoimmune pancreatitis represents the historical prototype of IgG4-RD, but the spectrum of manifestations involving various organs has expanded during the last decade. In this report, we shortly review this clinical entity.
Department of Diagnostic Radiology, Clinique St. Luc, Bouge, Namur 5004, Belgium.
Bruno
B
Coulier
Department of Internal Medicine, Clinique St. Luc, Bouge, Namur 5004, Belgium.
Luc
L
Montfort
Institute of Pathology and Genetics, Gosselies 6-6041, Belgium.
Gabriela
G
Beniuga
Department of Visceral Surgery, Clinique St. Luc, Bouge, Namur 5004, Belgium.
Frederic
F
Pierard
Institute of Pathology and Genetics, Gosselies 6-6041, Belgium.
Isabelle
I
Gielen
D002277:Carcinoma / Q000175:diagnosis; D005260:Female; D006801:Humans; D007074:Immunoglobulin G; D007150:Immunohistochemistry; D007415:Intestinal Obstruction / Q000209:etiology*; D007421:Intestine, Small; D008875:Middle Aged; D010265:Paraproteinemias / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D010532:Peritoneal Diseases / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D010534:Peritoneal Neoplasms / Q000175:diagnosis
D007074:Immunoglobulin G
Abdomen, CT; IgG4; IgG4-related disease; Immunohistochemistry; Pathologic correlation