Using atomic absorption spectrometry (AAS), five microelements in human serum, hair, and fingernails of aged hypertension, coronary heart disease (diseased group) and aged health control (healthy group) were detected. Results of the t-test are as follows: The iron, zinc, and cadmium contents and Zn/Cu (mol/mol) ratio of the diseased group were significantly higher than that of the healthy group in serum (p<0.01, p<0.05, p<0.01, and p<0.05, respectively); the chromium contents in the serum, hair, and fingernails (p<0.05, p<0.01, and p<0.05, respectively); the iron and zinc contents in the hair and fingernails (p<0.01, p<0.001, p<0.05, and p<0.01 respectively) and Zn/Cu ratio in the hair (p<0.01) of the diseased group were significantly lower than that of the healthy group.

Primary malignant melanoma of the vagina is an extremely rare variant of melanoma that accounts for <3% of all vaginal malignancies. Primary malignant melanoma of the vagina has a worse prognosis as compared with non-genital melanomas or other vaginal malignant neoplasms. A-35-year-old female had a diagnosis of primary malignant melanoma of the vagina. A local excision of the tumor was first performed, followed by a radical excision as a further therapeutic measure. The patient returned after three weeks, presenting with a vesico-vaginal fistula. A conservative operation was subsequently performed in order to improve the quality of life of the patient. Pelvic metastases were identified 6 months after the completion of the last surgical therapy and subsequent follow-up examinations were performed in another hospital. The present case study describes the clinical features and surgical procedures of this patient with primary malignant melanoma of the vagina. In conclusion, melanoma of the vagina is an extremely aggressive cancer and the overall prognosis is poor despite the various treatment options.

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