case_images: PMC10569891_01
case_images: (a) Solitary ulcer on the right buccal mucosa. (b) Ulcer on the left lower labial mucosa.
case_images: CRID2023-6543595.001.jpg
case_images: PMC10569891_01_CRID2023-6543595.001.jpg
case_images: fig1
case_images: Mild tenderness on palpation was also elicited (Figures 1(a) and 1(b)).
case_images: (a) The H and E photomicrograph (10x) shows caseous necrosis, epithelioid cells, and Langhan's giant cells. (b) The H and E photomicrograph (40x) shows chronic inflammatory cells and Langhan' giant cells. (c) The photomicrograph (Ziehl-Neelsen staining; 10x) shows acid-fast mycobacteria suggesting tuberculosis. (d) Chest X-ray revealing a normal picture.
case_images: CRID2023-6543595.002.jpg
case_images: PMC10569891_01_CRID2023-6543595.002.jpg
case_images: fig2
case_images: Microscopic examination showed the typical features of a granulomatous lesion (caseating granulomas, encircled by epitheloid cells, Langhan's giant cells, and chronic inflammatory cells) (Figures 2(a) and 2(b)). Ziehl-Neelsen staining (ZN staining) revealed several acid-fast bacilli on a smear examination of the ulcer (Figure 2(c)). C virus test, the VDRL (Veneral Disease Research Laboratory), and HIV tests were negative. Chest (PA view) was advised to look for systemic involvement, which revealed a normal picture (no lung infiltrates, lung opacities, bilaterally normal lung fields, and normal bronchovascular markings) (Figure 2(d)).
case_images: (a) Healed lesion on the right buccal mucosa. (b) Healed lesion on the left lower labial mucosa.
case_images: CRID2023-6543595.003.jpg
case_images: PMC10569891_01_CRID2023-6543595.003.jpg
case_images: fig3
case_images: The oral ulcers showed complete resolution after about 1 month of ATT (Figures 3(a) and 3(b)).