PMC5968663_01
Timeline of treatments for MF. The patient was diagnosed with MF in 1988 and RDD in 2017.
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A timeline detailing the management of his MF is presented in Figure 1.
RDD nodules.
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During the skin examination, 3 small, firm red nodules were noted on the patient's back (Figure 2).
The cells stain positively for S100. Intact lymphocytes are visible within the cytoplasm of the giant cells (emperipolesis) at the center of the image.
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Histopathology confirmed that the nodules were extra-nodal RDD and not MF lesions as initially suspected (Figure 3).