Snow storm pattern

A grainy, speckled, or heterogeneous visual texture on medical imaging, producing a granular snow storm appearance. Common causes are hydatidiform mole (ultrasound), silicone breast implant rupture (ultrasound), gout/pseudogout (ultrasound), echinococcal cyst (ultrasound), Fat Embolism Syndrome (chest X-ray/CT), miliary tuberculosis (chest X-ray/CT), metastatic cancer (chest X-ray/CT).