Three small (2 * 2 mm), nodular, nonulcerated, and asymptomatic lesions were found in the floor of the mouth of a 21-year-old man. Microscopically, the lesions were composed of a collection of normal mature lymphocytes with germinal centers. This patient has:

Question

Quizplus · Accepted Answer

The description of the lesions as being composed of a collection of normal mature lymphocytes with germinal centers suggests that these are ectopic lymphoid tissues. Ectopic lymphoid tissue refers to lymphoid tissue that is found in locations where lymphoid tissue is not normally present. The presence of normal mature lymphocytes and germinal centers indicates that this is not a pathological condition like lymphoma, which would show abnormal lymphocyte proliferation. It is also not consistent with mucous extravasation phenomenon, Fordyce granules, or dermoid cysts, which have different histological features.

Three Small (2 * 2 Mm), Nodular, Nonulcerated, and Asymptomatic