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1.
Figure 5  

Figure 5  . From: Endoscopic mucosal biopsies are useful in distinguishing granulomatous colitis due to Crohn's disease from tuberculosis.

Ileal mucosal biopsy specimen from a patient with tuberculosis, showing disproportionate submucosal inflammation.

A Pulimood, et al. Gut. 1999 Oct;45(4):537-541.
2.
Figure 4  

Figure 4  . From: Endoscopic mucosal biopsies are useful in distinguishing granulomatous colitis due to Crohn's disease from tuberculosis.

Mucosal biopsy of a patient with tuberculosis, showing a conglomerate band of epithelioid histiocytes at a site of ulceration.

A Pulimood, et al. Gut. 1999 Oct;45(4):537-541.
3.
Figure 3  

Figure 3  . From: Endoscopic mucosal biopsies are useful in distinguishing granulomatous colitis due to Crohn's disease from tuberculosis.

Mucosal biopsy specimen from a patient with Crohn's disease, showing inflammatory granulation tissue from a site of deep ulceration.

A Pulimood, et al. Gut. 1999 Oct;45(4):537-541.
4.
Figure 2  

Figure 2  . From: Endoscopic mucosal biopsies are useful in distinguishing granulomatous colitis due to Crohn's disease from tuberculosis.

Colonic mucosa of a patient with Crohn's disease, showing an ill formed microgranuloma over a lymphoid follicle (maximum diameter: 75 µm).

A Pulimood, et al. Gut. 1999 Oct;45(4):537-541.
5.
Figure 1  

Figure 1  . From: Endoscopic mucosal biopsies are useful in distinguishing granulomatous colitis due to Crohn's disease from tuberculosis.

(A) Colonic mucosal biopsy of a patient with tuberculosis showing multiple, large, confluent granulomas (maximum diameter of largest granuloma: 438 µm). (B) Colonic mucosal biopsy of a patient with Crohn's disease showing a single, small, naked granuloma in the mucosa (maximum diameter: 65 µm).

A Pulimood, et al. Gut. 1999 Oct;45(4):537-541.
6.
Figure 6  

Figure 6  . From: Endoscopic mucosal biopsies are useful in distinguishing granulomatous colitis due to Crohn's disease from tuberculosis.

Colonic mucosal biopsy specimen of a patient with Crohn's disease, showing focal overrunning of crypts by neutrophils associated with increased chronic inflammatory cells in the adjacent lamina propria (focally enhanced colitis).

A Pulimood, et al. Gut. 1999 Oct;45(4):537-541.

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