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71787 Pathology

An epidemiologic study of a community shows an increased incidence of basal cell and squamous cell carcinomas in adults. These lesions are distributed predominantly on palms and soles. Analysis of groundwater pumped from wells for drinking shows increased levels of heavy metal used in pressure-treated lumber (with a greenish hue), insecticides, and herbicides. Which of the following metals is most likely implicated by this study?

AArsenic
BBeryllium
CCadmium
DLead
Pathology
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71793 Gynaecology & Obstetrics

A couple presents to a clinic for the work-up of infeility after 5 years of unprotected intercourse. The wife denies any medical problems and notes regular menstrual cycles. The husband states that he has had chronic sinusitis and lower respiratory tract infections. Physical examination of the woman is unremarkable. Examination of the man is remarkable for dextrocardia. Fuher work-up of the husband will most likely reveal?

AAzoospermia
BGerminal cell aplasia
CImmotile sperm
DIsolated gonadotropin deficiency
Gynaecology & Obstetrics
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