Resolution of tuberculous biliary stricture after medical therapy

Figure 1 Initial ERCP showing dilated proximal biliary system (white arrow) with a tight short distal common bile duct stricture (black arrow).

Figure 2 Computed tomography scan of the chest showing enlarged mediastinal (Para-tracheal, sub-carinal) lymph nodes (arrow).

Figure 3 Hematoxylin and eosin (H and E) staining of liver tissue (A) and mediastinal lymph node (B) showing bile pigments (thick arrow) with bile duct proliferation (thin arrow) and inflammatory cell infiltrate and epethelioid granuloma with many langerhans cells but no caseation (arrows).

Figure 4 ERCP showing complete resolution of the previous distal common bile duct stricture three months after anti-tuberculous therapy.