Leiomyoma of the adrenal gland is an exceptional localization. We report a case occurring in a young patient with AIDS. Diagnosis was a surprise on pathologic examination. On enhanced computed tomographic (CT) scan, the adrenal mass had a low central attenuation area and a thin enhancing peripheral ring. On magnetic resonance (MR) imaging the left adrenal mass was isointense with the liver on T1-(TR/TE = 500/300 ms) and T2-(TR/TE = 2030/60, 120 ms) weighted spin-echo images, except a central area with a lower signal on T1-weighted images and a higher signal on T2-weighted images. The mass was slightly enhanced after Gd-DOTA injection, but the central area remained unchanged.

Benign cementoma is a rare tumor of the jaws whose origin is still debating. The tumor may derive from the dental cementum or the bone surrounding the socket. We have studied the profiles of enamel, dentine, and cementum from normal teeth and alveolar and cortical bone of the mandible. Raman spectroscopy was used to compare the spectra of these tissues embedded in poly(methylmethacrylate) from 300 to 3,100 cm−1. The degree of mineralization, carbonate‐to‐phosphate ratio, and crystallinity were derived. Tissue hydration was determined by measuring the ratio of the 813 cm−1 band of methacrylate to the 960 cm−1 band of phosphate. Raman spectroscopic imaging was obtained on large tissue areas with a bandwidth from 500 to 1,620 cm−1. Maps of the different peak ratio were obtained to analyze the mineral and organic phases (crystallinity, carbonate‐to‐phosphate, degree of mineralization) together with tissue hydration. Cementomas appeared highly heterogeneous, and their matrix possessed histological and spectroscopic characteristics that resemble highly calcified woven bone with a poor organization of the hydroxyapatite crystals.

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