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A. Ulcerated exophytic nodular pyogranuloma in the gingiva of a steer. B, C. A nodular pyogranuloma on the dorsal portion of the oropharynx obstructs the lumen of the esophagus of a steer (B). The 11 × 7 × 3 cm nodule expands the oropharynx (C). D. A pulmonary pyogranuloma in the steer with the lesion in the oropharynx.
