Paroxysmal drastic abdominal pain with tardive cutaneous lesions presenting in Henoch-Schönlein purpura

Figure 1 The endoscopy examination revealed intestinal damage. A-C are gastroscopic images, which show significant damage to the duodenum. A: Diffuse redness, swelling, hemorrhage and petechiae in the mucosa; B: Distortion and proliferation of the duplicature (narrow-band image); C: Ulcer; D-F: Colonoscopic images and demonstrate significant damage to the terminal ileum; D: Mucosal hemorrhage and petechiae; E, F: Ulcers.

Figure 2 The ultrasound endoscopy and the computed tomography scan indicated the presence of thickened intestinal mucosa and enlarged abdominal lymph nodes. A, B: Ultrasound endoscopy scan images; C: Computed tomography scan images.

Figure 3 The extent of damage to the intestinal mucosa improved after treatment. A: Gastroscopic image of the duodenum; B: Ultrasound endoscopy (EUS) image of the duodenum; C: Colonoscopic image of the terminal ileum; D: EUS image of the terminal ileum.

Figure 4 A percutaneous renal biopsy revealed focal segmental endocapillary crescent-like proliferation. A: HE staining, 200 ×; B: HE staining, 400 ×; C: Periodic acid-Schiff staining, 200 ×. HE: Hematoxylin and eosin.