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Port-site metastasis (PSM) is cancer growth at the site of a port insertion after laparoscopic surgery for cancer. The pathophysiology of isolated PSM is unknown. Metastatic workup need to be done in all cases to confirm its isolated recurrence or widespread metastasis. We present a case report on isolated PSM with review of the literature. Isolated PSM should be treated with surgery. For disseminated metastasis, palliative chemotherapy or best supportive care are options.

The kinetics of oxidation of L-ascorbic acid by 2,6-dichlorophenolindophenol in aqueous solution has been studied. The rate of the reaction decreases with increasing pH since the hydrogen ascorbate ion is less reactive than the unionized L-ascorbic acid. The rate constants for the oxidation of the two species have been evaluated and a plausible mechanism of the reaction is suggested.

The kinetics of the oxidation of oxalic acid by cerium(IV) in sulfuric acid medium has been studied voltammetrically. The specific reaction rate is 132±4.0 M−1s−1 at 25.0 °C. The energy of activation is 62.6±3.0 kJ mol−1. The entropy of activation is −2.7 J mol−1K−1. The specific reaction rate is influenced by complexation and also by ionic strength (μ). The most likely mechanism has been suggested.

The kinetics of the addition of bisulfite to acetone has been studied by the polarographic technique. The specific rate increases with pH and hence the reaction is probably base catalyzed. Mechanisms have been suggested for the reaction in the presence and absence of added base.

The new technique of metalorganic magnetron sputtering (MOMS) produces high-quality (100) epitaxial InSb films on (100) GaAs substrates, despite the large 14.6% lattice mismatch between InSb and GaAs. We have used Raman scattering to examine MOMS-grown InSb films of thicknesses 0.17 - 2.67 µm, and commercial bulk InSb. We observe the longitudinal optical (LO) phonon peak, and the second order 2LO peak, which is enhanced by outgoing resonance with the E1 + Δ1, gap of InSb. The half-widths and intensities of these bands are related to sample quality as a function of film thickness and to the role of biaxial stress in the InSb film.