Case 1:

Case report: 41-year-old patient with a painful protrusion on the neck. Sonographic thyroid cyst with internal echoes and solid part in the left thyroid lobe. Emptying of the cyst by fine needle aspiration (old blood).

Case 2:

Case Report: A 32-year-old female patient presented with a 2-day history of severe neck pain and a painful swelling of the neck. Ultrasonography revealed a cyst (3.5 x 1.4 cm) showing signs of hemorrhage (internal echoes). Color Doppler sonography demonstrated that the lesion was avascular, with vessels coursing along the periphery of the lesion. Subsequent fine-needle aspiration  yielded 12 ml of old blood, achieving complete evacuation of the cyst. Cytological analysis showed no evidence of malignancy.