Electronic properties of the narrow-gap semiconductor FeSb 2 have been studied by the magnetization and 121/123 Sb nuclear quadrupole resonance measurements. In addition to the susceptibility, the spin-lattice relaxation rate has revealed a fully opened gap at the Fermi level. The relaxation process is dominated by the magnetic contribution at high temperature T, while the quadrupole contribution becomes dominant below 70 K. Electronic field gradient at Sb sites shows anisotropic T dependence, reflecting most probably the anisotropic thermal expansion.

We describe a case of lipodystrophia centrifugalis abdominalis lasting until 46 years of age. Recently, angioblastoma (Nakagawa), which contained large numbers of mast cells, developed in the same region. A case of lipodystrophia centrifugalis abdominalis with an infant-onset that lasted until adulthood has not been reported. This is the first report of lipodystrophia centrifugalis abdominalis that lasted until adulthood.

A 41-year-old woman with desmoplastic trichoepithelioma associated with pigmented nevus presented. Pigmented nevus had been present on her face at birth. She had received cryotherapy and dermabrasion at a small part of the pigmented nevus. As a result of the therapy, the discoloration disappeared. The lesion lately increased and became hard. Histologically, the lesion was composed of two distinctive but intimately mixed cellular components; nevus cells and basaloid cells. In the pigmented lesion, basaloid cells were not present. To our knowledge, this is the first reported case of desmoplastic trichoepithelioma associated with nevocellular nevus in Japan.

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