Ruptured mycotic pulmonary artery pseudoaneurysm in an infant: transcatheter embolization and CT assessment.

Mycotic pseudoaneurysim of the pulmonary artery that ruptures during necrotizing pneumonia is a rare entity that is often fatal. Traditionally it has been treated with open thoracotomy and resection of both the aneurysm and the lobe in which the aneurysm is located. In this report, we describe the radiological findings and transcatheter coil embolization of a mycotic pulmonary pseudoaneurysm in a 6-month-old female infant.

Aneurysms of the inferior vena cava.

Two cases of saccular aneurysms of the infrarenal inferior vena cava (IVC) associated with retrohepatic IVC obstruction are described. Ultrasonographic, computerized tomographic and inferior venacavography findings in these cases are presented.

Renal fungal ball: an unusual sonographic finding.

Fungal infections of the urinary tract tend to occur in the drainage structures instead of the renal parenchyma. In patients with systemic candidiasis, the kidney is vulnerable to the formation of cortical abscesses or obstructive intrarenal masses ("fungal balls"), usually at the ureteropelvic junction. We describe the case of a boy who presented with dysuria, fever, and chills.

Mandibular haemophilic pseudotumour containing a fluid-fluid level.

Osseous haemophilic pseudotumours are uncommon. Mandibular haemophilic pseudotumours are rare, with only approximately 12 cases reported in the literature to date. We present imaging findings of a histopathologically proven mandibular haemophilic pseudotumour.

Unusual "floating balls" appearance of an ovarian cystic teratoma: sonographic and CT findings.

Ovarian cystic teratomas are cystic fatty tumors that can be easily diagnosed by sonography and CT. We present a case of ovarian cystic teratoma with an unusual sonographic appearance of mobile, hyperechoic, intracystic fat balls; this finding correlated well with the appearance on CT.

Pulmonary inflammatory pseudotumour in children.

Inflammatory pulmonary pseudotumour is an uncommon, non-neoplastic, occasionally aggressive spindle cell proliferative process of uncertain nosology. It has distinctive histopathological features and benign clinico-biological behaviour with multifocal lesions or recurrences in a minority of cases. Recognition of this entity is of paramount importance because it has considerable therapeutic and prognostic implications.

Methanol poisoning: brain computed tomography scan findings in four patients.

Methanol, through its chief metabolite, formate, causes irreversible neurological damage. Methanol intoxication produces classic neuropathological changes and characteristic imaging findings. Computed tomography was performed on four patients who presented with a history of methanol poisoning.

Active contrast extravasation in spontaneous rupture of hepatocellular carcinoma: a rare CT finding.

Spontaneous rupture of hepatocellular carcinomas are uncommon but constitute a critical and life threatening condition. Diagnosis is important so that either surgery or emergency arterial embolisation can be considered for hepatic haemostasis. We describe active extravasation of intravenous contrast medium on CT in a patient who presented with intraperitoneal haemorrhage secondary to spontaneous rupture of hepatocellular carcinoma.