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. 2019 May 22;155(7):789–796. doi: 10.1001/jamadermatol.2019.0381

Figure 3. μ Fourier Transform Infrared (FT-IR) Spectroscopy of the Interstitial Calcific Uremic Arteriolopathy (CUA) Deposits.

Figure 3.

A, Skin biopsy of CUA; B, Infrared map of the red square area, showing an intense vascular deposit; C, Infrared spectrum of this vascular deposit: calcium–phosphate apatite spectrum with characteristic peaks (1009, 958 and 870 cm–1) in a protein matrix (skin tissue). The same spectrum was obtained for CUA and arteriolosclerosis vascular calcifications.