case_images: PMC11829510_01
case_images: Parathyroid technetium scintigraphy shows abnormally increased tracer uptake in the lower half of the right thyroid bed (black arrow).
case_images: cureus-0017-00000077535-i01.jpg
case_images: PMC11829510_01_cureus-0017-00000077535-i01.jpg
case_images: FIG1
case_images: This finding was interpreted as consistent with a parathyroid adenoma (Figure 1).
case_images: A diffuse swelling was present on the left side of the mandible (black arrow).
case_images: cureus-0017-00000077535-i02.jpg
case_images: PMC11829510_01_cureus-0017-00000077535-i02.jpg
case_images: FIG2
case_images: On extra-oral examination, a diffuse swelling was noticed on the left lower third of the face, measuring approximately 3 cm x 4 cm, extending superior-inferiorly from the corner of the mouth to 1 cm below the lower border of the mandible, and anteroposteriorly from the midline to 2 cm lateral to the corner of the mouth (Figure 2).
case_images: Intraorally, buccal vestibular obliteration was noted (black arrow).
case_images: cureus-0017-00000077535-i03.jpg
case_images: PMC11829510_01_cureus-0017-00000077535-i03.jpg
case_images: FIG3
case_images: On intraoral examination, buccal vestibular obliteration was noted on the left side of the mandible, extending from the mesial aspect of 31 to the distal aspect of 34 (Figure 3).
case_images: The orthopantomogram shows a large unilocular radiolucency on the left side of the mandible, extending from the mandibular central incisor to the mandibular second premolar (black arrow).
case_images: cureus-0017-00000077535-i04.jpg
case_images: PMC11829510_01_cureus-0017-00000077535-i04.jpg
case_images: FIG4
case_images: The orthopantomogram showed a large unilocular radiolucency on the left side of the mandible, extending from the mesial aspect of 31 to the distal aspect of 35 (Figure 4).
case_images: The CBCT scan revealed an expansile, mixed hypodense-hyperdense mass involving the alveolar process of the left body of the mandible, with destruction of the buccal cortical plate (white arrows).. CBCT: Cone-beam computed tomography
case_images: cureus-0017-00000077535-i05.jpg
case_images: PMC11829510_01_cureus-0017-00000077535-i05.jpg
case_images: FIG5
case_images: A cone-beam computed tomography (CBCT) of the patient revealed an expansile, mixed hypodense-hyperdense mass involving the alveolar process of the body of the mandible, extending into adjoining buccal mucosa with thinning and destruction of the buccal cortical plate (Figure 5).
case_images: Histological image of brown tumor showing the presence of multiple multinucleated giant cells (H&E stain, X40).
case_images: cureus-0017-00000077535-i06.jpg
case_images: PMC11829510_01_cureus-0017-00000077535-i06.jpg
case_images: FIG6
case_images: The presence of multiple multinucleated giant cells was noted with areas of reactive bone formation and hemorrhage (Figure 6).