Classification for the Calcifications Seen in a Head CT Scan of a Patient with Cerebral Paragonimiasis

Pattern of Calcifications

Type

amorphous, punctate calcifications with or without calcified trabeculae

I

round, ill-defined nodular calcifications 0.5 to 0.7 cm in diameter

II

solitary, well-defined round cystic calcification up to 2.0 cm in diameter

III

"soap bubbles" with multiple, congregated cystic calcifications with a hypodense center, measuring 0.7 to 3.0 cm in diameter

IV