Looking beyond the thrombus: essentials of pulmonary artery imaging on CT.

Background: Pulmonary arteries are not just affected by thrombus. Congenital and acquired conditions can also involve the pulmonary arteries. An awareness of these conditions is important for the radiologist interpreting chest computed tomography (CT).

Breast metastases to thyroid gland.

Metastases to the thyroid gland are uncommon. We present the sonographic features of metastatic breast adenocarcinoma to the thyroid in a 67-year-old woman. The lesion measured up to 0.

Hip anatomic variants that may mimic pathologic entities on MRI: nonlabral variants.

Objective: The hip has several anatomic variants that may be mistaken for pathologic abnormalities. The radiologist needs to be able to distinguish these variants from true abnormalities. In this review, we present nonlabral variants of the hip that can be seen on MRI.

Hip anatomic variants that may mimic abnormalities at MRI: labral variants.

Objective: Normal anatomic variants of the acetabular labrum are observed on MR images and include labral variants, several sublabral sulci, and perilabral sulcus. Because variants can be misidentified as labral abnormalities such as labral tears, the radiologist needs to avoid the pitfall of mistaking variants as abnormalities.

Conclusion: The hip has multiple anatomic variants that can mimic abnormalities at hip MRI.