case_images: PMC6381848_01
case_images: Serial panoramic radiograph monitoring the resolution of the lesion: (a) Orthopantomogram radiograph at the initial presentation; (b) 4 months after the first triamcinolone injection; (c) 8 months after the first triamcinolone injection; (d) 18 months from the initial injection
case_images: SJMMS-7-47-g001.jpg
case_images: PMC6381848_01_SJMMS-7-47-g001.jpg
case_images: F1
case_images: Orthopantomogram X-ray revealed a large, radiolucent, irregular lytic lesion measuring 2.5 cm x 3.2 cm and extending from the retromolar area of the lower right first molar to the ramus of the mandible with a radiolucent line, suggesting a pathological fracture [Figure 1]. Four months after the first injection, there was a significant reduction in the size of the lesion [Figure 1b], and complete healing with normal bone trabeculation was appreciated 18 months after the first injection.
case_images: Histological sections stained by routine hematoxylin and eosin stains by routine hematoxylin and eosin stains at (a and b) medium power; (c and d) at high power
case_images: SJMMS-7-47-g002.jpg
case_images: PMC6381848_01_SJMMS-7-47-g002.jpg
case_images: F2
case_images: The histiocytes were immunoreactive for S100 and CD1a proteins by standard immunohistochemical stains, thereby confirming the diagnosis of LCH [Figure 2].