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The authors describe the US and CT features of a hepatic mucinous cystadenoma presenting as a hepatic cystic mass with a daughter cyst in a 50-year-old female patient. The contribution of the current imaging modalities is analyzed and a review of the literature is presented.

Enlargement of neck swelling on Valsalva maneuver raises the diagnosis of laryngocele or jugular aneurysm. When considering this latter type of lesion, though fusiform cervical venous aneurysms represent a frequent occurrence, sacciform aneurysms are much rarer. We report two exceptional cases of saccular aneurysms of the external jugular vein which presenting symptom was a neck lump that enlarged on Valsalva maneuver. Although computed tomography and selective venography allow accurate diagnosis, ultrasonography with color flow duplex imaging is the gold standard for the diagnosis of such venous aneurysms of the neck.

We present two cases of an extracranial collateral of the internal carotid artery. The descriptions include Doppler recording and colour flow-mapping. The report underlines the epidemiological, embryological and anatomic features (including Doppler characteristics) of the variant, with a view to helping sonographers whenever the carotid examination proves difficult.

Suprarenal masses shown on CT scan should be diagnosed with caution. In fact normal structures, anatomic variations, and lesions of adjacent organs may mimic actual adrenal tumors. A gastric diverticulum simulating an adrenal metastasis is reported.