PMC9037864_01
(a and b) Initial whole-body bone scan shows multifocal heterogeneous increased tracer uptake in the soft tissues of the left cheek, bilateral arms, elbows, left forearm, posterior thorax, pelvis, bilateral thighs, and left feet. (c and d) Follow-up scan shows regression in the intensity of tracer uptake in a few preexisting lesions (arrows) and no new lesions
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F1
Tc-99m MDP whole-body bone scan to look for the extent of cutaneous calcification showed multifocal heterogeneous increased tracer uptake in the soft tissues of the left cheek, bilateral arms, elbows, left forearm, posterior thorax, pelvis, bilateral thighs, and left feet [Figure 1a-1b]. Follow-up whole-body bone scan after approximately 8 months showed regression in the intensity of tracer uptake in a few preexisting lesions with no new lesions [Figure 1c-1d].
(a and b) Baseline single-photon emission tomography-computed tomography images shows tracer uptake in the multifocal calcifications in the subcutaneous fat of the gluteal region. (c and d) Follow-up single-photon emission tomography-computed tomography images show regression in the intensity of tracer uptake and minimal regression in the extent of calcification suggestive of partial response to treatment
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F2
Partial response to treatment was further better characterized by baseline and follow-up SPECT-CT of gluteal region [Figure 2].