One thousand-six-hundred and sixty cases of laryngeal cancer were diagnosed in Israel during the years 1960-1976. In 98 of these cases another primary cancer accompanied the laryngeal carcinoma. Patients whose second primary cancer was basal or squamous cell carcinoma of the skin were not included in this study. Therefore, the results reported here deal with 84 patients. The prevalence of multiple primary cancer in patients with laryngeal carcinoma was found to be 5%. Lung cancer is the other primary tumor accompanying laryngeal carcinoma most frequently (29% of the additional tumors) followed by colorectal and bladder cancers. Most of the additional tumors (83%) appeared in a metachronic form with an average time interval of six years. In most metachronic tumors laryngeal carcinoma appeared as the first tumor (86%). Eighty percent of the patients were dead by August 1978. The majority (74%) succumbed due to the additional tumor and only 4% died of laryngeal carcinoma.

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The association of a malignant melanoma appearing as an additional primary tumor in the swollen arm adjacent to a mastectomy for breast cancer is reported. A review of the literature revealed only one similar patient previously reported. In both patients, the melanoma and its metastasis were restricted to the lymphedematous arm, appeared 10 years post-mastectomy, and responded to therapy. The similarity to Stewart-Treves syndrome is emphasized. It is suggested that nevi developing in the lymphedematous arm post-mastectomy should be carefully monitored and excised early whenever indicated.

The development of a plasmacytoma in the vicinity of a long residing metallic foreign body in the nasal cavity is presented. In spite of the multitude of reports concerning neoplasma associated with trauma, most of which arise in chronic scars, this presentation is very rare. It is speculated that the plasma cell proliferation, occurring nearby the foreign body, roots from an immunologic and granulomatous reaction. This case is discussed in light of the vast data on foreign body tumorigenesis obtained from laboratory animals, and the implications of this data are outlined. Further attention should be drawn to the clinical associations of malignant processes co-existing with long-standing foreign bodies.