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Colitis cystica profunda is a rare nonneoplastic condition characterized by the presence of mucus-containing cysts in the submucosa of the right colon and rectum. The etiology is unclear, with a few cases reported in the literature. The presenting symptoms and signs may mimic colorectal adenocarcinoma. We report a case of colitis cystica profunda localized in the rectum, investigated by colonoscopy, CT, MRI, and subsequently surgically treated.

We report a rare case of giant angioleiomyoma located in the uterus and detected in a 37-year-old woman. The uterus is an extremely rare location for angioleiomyoma. The definitive diagnosis is usually obtained only after the histopathologic examination because the imaging criteria are challenging for this disease. We focused our attention on the main computed tomography features able to provide a robust preoperative diagnosis of this rare clinical entity.

We described the utility of computed tomography (CT) angiography in detection of bleeding vessels for a rapid percutaneous arterial embolization of the spontaneous rectus sheath hematoma. A 70-year-old woman comes to our attention with acute abdominal pain and a low hemoglobin level. An unenhanced CT was performed demonstrating a large rectus sheath hematoma. A conservative management was initially established. Despite this therapy, the abdominal pain increased together with a further decrease of hemoglobin values. A CT angiography was then performed, demonstrating an active bleeding within the hematoma and addressing the patient to a rapid percutaneous arterial embolization.

Congenital absence of internal carotid artery (ICA) is a rare anomaly seen in around 0.01% of the population. High incidence of aneurysms is reported in these patients population. Many patients are asymptomatic as the development of a collateral circulation ensures cerebral perfusion. The embryology, the common collateral pathways, and the imaging findings associated with this anomaly are illustrated with 2 new cases. We reported the cases of 2 totally asymptomatic patients at the time of imaging in which ICA agenesis was proved on computed tomography angiography. On imaging, all the most important findings necessary for ICA agenesis diagnosis have been identified and described. Noninvasive imaging techniques are currently the mainstay of ICA agenesis diagnosis.