Reactive lymphoid hyperplasia of the liver: Perinodular enhancement on contrast-enhanced computed tomography and magnetic resonance imaging.

We report the case of a 69-year-old woman with reactive lymphoid hyperplasia (RLH) of the liver. She underwent partial hepatectomy under a preoperative diagnosis of hepatocellular carcinoma; however, histopathological analysis revealed RLH. The liver nodule showed the imaging feature of perinodular enhancement in the arterial dominant phase on contrast-enhanced computed tomography and magnetic resonance imaging, which could be a useful clue for identifying RLH in the liver.

Characteristics of 22q 11.2 deletion syndrome undiagnosed until adulthood: an example suggesting the importance of psychiatric manifestations.

Patients with chromosome 22q11.2 deletion syndrome (22q11.2DS) exhibit various combinations of signs and symptoms including facial dysmorphism, thymus absence, hypoparathyroidism, cellular immunodeficiency and cardiac abnormalities caused by microdeletion of chromosome 22q11.

Acute appendicitis with intestinal malrotation: the usefulness of coronal computed tomography.

We herein present a rare case of acute appendicitis with intestinal malrotation. Coronal images of contrast-enhanced computed tomography (CT) revealed the small intestine on the right side and the large intestine on the left side, thus indicating intestinal malrotation (non-rotation type). In addition, an enhanced, tubular, fluid-filled structure was detected attached to the cecum, which was located superior to the urinary bladder, suggesting acute appendicitis.

Aortic ostia of the bronchial arteries and tracheal bifurcation: MDCT analysis.

Aim: To explore the anatomical relationships between bronchial artery and tracheal bifurcation using computed tomography angiography (CTA).

Methods: One hundred consecutive patients (84 men, 16 women; aged 46-85 years) who underwent CTA using multi-detector row CT (MDCT) were investigated retrospectively. The distance between sites of bronchial artery ostia and tracheal bifurcation, and dividing directions were explored.

Fibroadenoma of the axillary accessory breast: diagnostic value of dynamic magnetic resonance imaging.

Accessory breast is synonymous with polymastia or supernumerary breast tissue. An accessory breast without a nipple or areola is rare. We report a case of fibroadenoma of an accessory breast with no nipple or areola in a 41-year-old woman who presented with a right axillary mass associated with five small nodules in the normally situated breast.

Pleomorphic carcinoma of the lung with intrapulmonary aerogenic metastases on FDG PET.

A 59-year-old man presented with hemoptysis. Chest x-ray and computed tomography showed a cavitating mass and ground glass opacities in the right lower lobe. Positron emission tomography showed large regions of markedly increased fluorodeoxyglucose uptake in the right lower lobe consistent with primary cancer and intrapulmonary metastases, and several foci of high fluorodeoxyglucose uptake in the mediastinum and left neck consistent with lymph node metastases.

Leiomyoma of the seminal vesicle.

We report a case of leiomyoma of the seminal vesicle in a 74-year-old man who presented with left hemilumbago. Computed tomography and magnetic resonance imaging revealed a mass containing coarse calcification and low signal intensity areas on T1- and T2-weighted images. The clinical features of previously reported cases of leiomyoma of the seminal vesicle are presented, including those of the present case.

Late-onset tumefactive multiple sclerosis.

A patient with tumefactive multiple sclerosis (MS) initially presented at the age of 87 years; the revised diagnostic criteria from the International Panel on MS (2001) were fulfilled. Late-onset MS and tumefactive demyelinating lesions are discussed. This case suggests that MS can occur at any age.