If a pregnant woman has a high level of alglucosidase, this condition can be monitored. This is because the hormones secreted by the pregnant woman may cause a physiological elevation of the enzyme, so the patient should continue to be monitored. However, if the patient has had chronic viral hepatitis B or cirrhosis of the liver, an ultrasound or MRI of the upper abdomen is needed to look for any occupational lesions in the liver. The patient will also need to have a blood test for alpha-fetoprotein to see if there is an elevation of alpha-fetoprotein. If there is an elevation of alpha-fetoprotein combined with an elevation of alglucosidase, or AFU, the possibility of a primary liver tumor should also be considered. If the elevation is purely due to an elevation in alglucosidase, and the alpha protein is normal, the patient may choose to continue to be monitored. If an MRI or ultrasound reveals an occupying lesion, depending on the nature of the lesion, a liver aspiration biopsy may be considered if necessary.