LDL-cholesterol: Friedewald calculated versus direct measurement-study from a large Indian laboratory database.

Background: Validity of Friedewald formula (FF) in patients with serum triglycerides (TGs) <400 mg/dl is unclear.

Materials And Methods: We compared low-density lipoprotein (LDL)-cholesterol calculated by FF to directly measured LDL in a laboratory database of 14,620 lipid profile samples from south India.

Results: LDL by FF correlated with directly measured LDL with correlation coefficient of 0.

A case of hemiagenesis of thyroid with double ectopic thyroid tissue.

Developmental abnormalities of the thyroid gland are very rare. The most common abnormalities include ectopic thyroid tissues that are commonly seen in lingual or sublingual location, agenesis, and hemiagenesis of the thyroid gland. These developmental defects may or may not be associated with thyroid dysfunction.