Case Report: Proteinase 3 Antineutrophil Cytoplasmic Antibody-Associated Ulcerative Colitis Presenting as Recurrent Intestinal Pseudo-Obstruction in a Teenage Patient With in situ Proteinase 3 Immunohistochemical Staining

• Main Authors: Ching-Wen Yang (Author), Yu-Chien Kao (Author), Pei-Chun Lin (Author), Hsi-Yuan Chien (Author), Sheng-Chieh Lin (Author), Yu-Hsien Lee (Author), Yen-Lin Huang (Author), Shiuh-Bin Fang (Author)
• Format: Book
• Published: Frontiers Media S.A., 2022-02-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Ulcerative colitis (UC) is a chronic relapsing inflammatory bowel disease with the colorectum as its major target organ. Involvement of the upper gastrointestinal tract in UC is rare and presents with nonspecific endoscopic and microscopic characteristics. Recent studies have demonstrated proteinase...