<P> Human chorionic gonadotropin ( hCG ) is a hormone produced by the placenta after implantation . The presence of hCG is detected in some pregnancy tests ( HCG pregnancy strip tests ) . Some cancerous tumors produce this hormone ; therefore , elevated levels measured when the patient is not pregnant may lead to a cancer diagnosis and , if high enough , paraneoplastic syndromes , however , it is not known whether this production is a contributing cause , or an effect of carcinogenesis . The pituitary analog of hCG , known as luteinizing hormone ( LH ) , is produced in the pituitary gland of males and females of all ages . </P>
<P> Human chorionic gonadotropin ( hCG ) is a hormone produced by the placenta after implantation . The presence of hCG is detected in some pregnancy tests ( HCG pregnancy strip tests ) . Some cancerous tumors produce this hormone ; therefore , elevated levels measured when the patient is not pregnant may lead to a cancer diagnosis and , if high enough , paraneoplastic syndromes , however , it is not known whether this production is a contributing cause , or an effect of carcinogenesis . The pituitary analog of hCG , known as luteinizing hormone ( LH ) , is produced in the pituitary gland of males and females of all ages . </P>
where is human chorionic gonadotropin ( hcg ) produced
where is human chorionic gonadotropin ( hcg ) produced
the placenta
the placenta