We encountered a very rarc case of occult breast cancer associated with paraneoplastic sensory polyneuropathy. A 59-year-old woman was admitted to our hospital complaining of numbness in all extremities, ataxia of left extremities and a tumor in the left axilla. From the neurological findings, a malignant tumor was suspected. The immunohistochemical analysis of the axillar swollen lymph node revealed metastasis from breast cancer and confirmed the primary lesion. On a preoperative diagnosis of suspected occult breast cancer, left mastectomy and resection of left axillar lymph nodes were performed. Furthermore, immunohistochemical staining of sural nerves and Western blot analysis of the serum of this patient showed the loss of axons and the presence of antineural antibody in the seurm. Immunological response was considered to be the remote effector system between the breast cancer and sensory polyneuropathy in this disorder.

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The photon emission from extremely small sise MOS-FET's with L~=7Onm is observed for the first time. It is found that the electron temperature of the hot electrons monotonoudy increascs while the substrate current to drain current ratio which is related to the avalanche multiplication Zsctor initially increases and then decreases due to the latch effect caused by the parasitic bipolar transistor action M the gate length is reduced from 600nm to 70nm. The number of photons emitted with a higher energy haa more intimate relation with the charge pumping current change caused by the hot-carrier generated interface states. It is shown that the photon emission is more effective for evaluating the hot carrier phenomenon than the substrate current when the gate length is smaller and the drain voltage is higher.

The corresponding author should be ''Masataka Ishimura'', and not ''Motoshi Sonoda'' as given in the original publication of the article.

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