PMC8046462_01
(a and b): Initial computed tomography scan of the left foot,   pelvic X-ray, (d) foot X-ray in follow-up showing sequestrum (July 2018).
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F1
Imaging studies including computed tomography (CT) scan of the left foot (Fig. 1a, b and d) and pelvic X-ray (Fig. 1c). The X-rays showed sequestrum and sclerosis of calcaneum, distal tibia, and fibula (Fig. 1d).
Histologic images from the calcaneal mass. (a) Necrotic, dead bone fragment and mixed acute and chronic inflammatory cell infiltrates (H and E x4). (b) Extensive necrosis, note poorly formed granuloma (H and E x4). (c) Note the epithelioid cells; yellow allow (H and E x20). (d) Auramine-rhodamine immunofluorescence stain, note presence of 1 AFB (yellow color in the center of the image).
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F2
TB. The special auramine-rhodamine stain was positive for acid-fast bacilli (Fig. 2).
(a) Control pelvic X-ray, (b) control left foot X-ray, (c and d) morphology of the left heel after treatment.
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F3
Control X-rays and morphology picture of the limb were obtained at the same time (Fig. 3).