Which condition is known to have a tendency to recur if not treated?

The condition known to have a tendency to recur if not treated is giant cell granuloma. This benign lesion is characterized by the proliferation of multinucleated giant cells, spindle-shaped cells, and a prominent inflammatory infiltrate. Typically found in the jawbones or soft tissues of the oral cavity, giant cell granulomas can arise following trauma or irritation and are particularly common in children and young adults.

If not adequately excised, these lesions have a noted propensity to recur, partly due to the possibility of incomplete removal or the presence of underlying factors that allow for their persistence. When treated appropriately, the recurrence rate decreases significantly, but vigilant monitoring is essential, as failure to address the underlying cause or complete excision may lead to the return of the lesion.

In contrast, while conditions like fibrous epulis, haematoma, and pulp polyps can also present in the oral cavity, they do not exhibit the same degree of recurrence associated with untreated giant cell granulomas. Fibrous epulis generally resolves after irritation is removed, haematomas typically resolve on their own, and pulp polyps can be treated effectively through endodontic therapy or extraction without a high risk of recurrence.