Left adrenal nodule. What's going on?

Nodules on the left adrenal gland require further examination to determine the size and location of the nodule, and further endocrine function testing of the adrenal gland to assess the presence of a functioning nodule. After completion of the relevant evaluation, it is necessary to determine whether to observe or perform surgical resection. Adrenal nodules can be divided into intracortical nodules and intramedullary nodules. Intracortical nodules can be seen as aldosterone tumors or cortisol tumors. The nodules in the medulla are mostly pheochromocytomas. Enhanced CT examination is required, and blood biochemical tests such as epinephrine, noradrenaline, dopamine, etc. are required. Serum electrolytes and serum aldosterone and renin angiotensin are also required for further evaluation. For adrenal nodules, blood pressure and heart rate need to be monitored. If the operation standard is met, blood pressure needs to be controlled stably, and the heart rate needs to be kept below 90 beats/min.