An unusual instance of leukemic infiltrate diagnosis and management of periapical tooth involvement

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Abstract
The clinical course of an adult patient with relapsed acute myelogenous leukemia and leukemic infiltrate periapical to the dentition is described. While the oral symptoms were indicative of pulpal disease requiring dental therapy to resolve the patient-s complaint, roentgenographic, dental pulp testing, and histologic analysis revealed extramedullary infiltrate apical to a mandibular molar. The findings developed coincident with relapse of leukemia; the medical and dental testing described above were essential in establishing an accurate diagnosis. While most oral leukemic infiltrates affect the gingiva, in this patient the infiltrate involved periapical tissue which was not clinically observable.