Measurement of Ionized Calcium as Supplementary Marker of Bone Metastasis in Breast Cancer

The serum concentrations of ionized calcium (iCa), corrected automatically for serum pH, were measured in 67 cases with breast cancer (16 positive cases and 51 negative cases for bone metastasis). The serum concentration of iCa in the cases of positive bone metastasis was significantly higher than that in the negative cases (p<0.005). As osteoclastic bone metastasis occurred frequently in breast cancer, the measurements of serum concentrations of iCa might be of help as a supplementary marker of the diagnosis of bone metastasis

頸部リンパ節転移が嚢胞を呈した甲状腺不顕性癌の1例

頸部リンパ節転移が,嚢胞を呈した甲状腺不顕性癌の1例を経験したので報告した.症例31歳男性,左側頸部腫瘤を主訴として来院.側頸部嚢胞と診断したが,摘出腫瘤を組織学的に検討した結果,甲状腺癌のリンパ節転移と判明した.The purpose of this paper is to report a case of minimal carcinoma of the thyroid manifested by a cystic metastasis to the cervical lymph nodes which mimicked a lateral cervical cyst in a 31-year-old male and to discuss the clinical significance of cystic metastasis from papillary adenocarcinoma of the thyroid

Anion-Dependent Potential Precycling Effects on Lithium Deposition/Dissolution Reaction Studied by an Electrochemical Quartz Crystal Microbalance

The electrochemical quartz crystal microbalance technique was employed to study the initial stage of the electrodeposition and dissolution of lithium utilizing three kinds of electrolyte solutions such as LiPF₆, LiTFSI, or LiFSI in tetraglyme. The native-SEI (solid–electrolyte interphase) formed by a potential prescan before lithium deposition/dissolution in all three solutions. Simultaneous additional SEI (add-SEI) deposition and its dissolution with lithium deposition and dissolution, respectively, were observed in LiPF₆ and LiTFSI. Conversely, the add-SEI dissolution with lithium deposition and its deposition with lithium dissolution were observed in LiFSI. Additional potential precycling resulted in the accumulation of a “pre-SEI” layer over the native-SEI layer in all of the solutions. With the pre-SEI, only lithium deposition/dissolution were significantly observed in LiTFSI and LiFSI. On the basis of the potential dependences of the mass and resistance changes, the anion-dependent effects of such a pre-SEI layer presence/absence on the lithium deposition/dissolution processes were discussed