Neuroblastoma is associated with elevated levels of which catecholamines?

Neuroblastoma is associated with elevated levels of which catecholamines?

• A. Decreased Epinephrine And Dopamine
• B. Normal Catecholamine Levels
• C. Increased Epinephrine And Dopamine
• D. Increased Norepinephrine And Cortisol

Answer: (C)

Neuroblastoma often secretes catecholamines, reflecting the tumor’s neurosecretory activity. Among these chemicals, dopamine is commonly produced by tumor cells, and epinephrine can be elevated as well, especially when adrenal-origin tissue or PNMT activity allows conversion toward epinephrine. Because the tumor can release both dopamine and epinephrine, an option describing increased levels of these two catecholamines best matches the typical biochemical pattern seen in neuroblastoma. In contrast, norepinephrine elevation is common too but not as defining for this specific pattern, and cortisol is not a catecholamine, so a choice pairing norepinephrine with cortisol isn’t consistent with the tumor’s secretory profile.

Neuroblastoma often secretes catecholamines, reflecting the tumor’s neurosecretory activity. Among these chemicals, dopamine is commonly produced by tumor cells, and epinephrine can be elevated as well, especially when adrenal-origin tissue or PNMT activity allows conversion toward epinephrine. Because the tumor can release both dopamine and epinephrine, an option describing increased levels of these two catecholamines best matches the typical biochemical pattern seen in neuroblastoma. In contrast, norepinephrine elevation is common too but not as defining for this specific pattern, and cortisol is not a catecholamine, so a choice pairing norepinephrine with cortisol isn’t consistent with the tumor’s secretory profile.