Superior mesenteric artery syndrome, also known as Wilkie's syndrome, is a rare vascular disease caused by the anomalous course of the superior mesenteric artery arising from the abdominal aorta with a smaller angle than the norm (<22°). The reduced angle compresses the structures situated between the aorta and the superior mesenteric artery, such as the duodenum and left renal vein; this can determine painful crises, intestinal subocclusions, and left varicocele. This syndrome can be congenital or acquired. The acquired type is more common and is generally caused by reduced perivascular fat surrounding the abdominal aorta and the superior mesenteric artery; this form is common among anorexic patients that have had a rapid weight loss. We present the case of a female patient who suffered from repeated postprandial vomiting and who lost 12 kg in 4 months. B-mode ultrasound imaging revealed evidence of a reduced angle between the aorta and the superior mesenteric artery, as found in Wilkie's syndrome. After diagnosis, the patient followed a high-calorie diet, and 2 months later an ultrasound scan proved the restoration of the aorto-mesenteric angle as a consequence of increased perivascular fat with regression of symptoms.

Due to the growing use of cross-sectional imaging in emergency departments, acute gynaecologic disorders are increasingly diagnosed on urgent multidetector computed tomography (CT) studies, often requested under alternative presumptive diagnoses in reproductive-age women. If clinical conditions and state-of-the-art scanner availability permit, magnetic resonance imaging (MRI) is superior to CT due to its more in-depth characterisationof abnormal or inconclusive gynaecological findings, owing to excellent soft-tissue contrast, intrinsic multiplanar capabilities and lack of ionising radiation.This pictorial review aims to provide radiologists with a thorough familiarity with gynaecologic emergencies by illustrating their CT and MRI appearances, in order to provide a timely and correct imaging diagnosis. Specifically, this second instalment reviews with examples and emphasis on differential diagnosis the main non-pregnancy-related uterine emergencies (including endometrial polyps, degenerated leiomyomas and uterine inversion) and the spectrum of pelvic inflammatory disease.

Acute gynaecologic disorders are commonly encountered in daily clinical practice of emergency departments (ED) and predominantly occur in reproductive-age women. Since clinical presentation may be nonspecific and physical findings are often inconclusive, imaging is required for a timely and accurate diagnosis. Although ultrasound is the ideal non-invasive first-line technique, nowadays multidetector computed tomography (CT) is extensively used in the ED, particularly when a non-gynaecologic disorder is suspected and differential diagnosis from gastrointestinal and urologic diseases is needed. As a result, CT often provides the first diagnosis of female genital emergencies. If clinical conditions and scanner availability permit, magnetic resonance imaging (MRI) is superior to CT for further characterisation of gynaecologic abnormalities, due to the excellent soft-tissue contrast, intrinsic multiplanar capabilities and lack of ionising radiation.The purpose of this pictorial review is to provide radiologists with a thorough familiarity with gynaecologic emergencies by illustrating their cross-sectional imaging appearances. The present first section will review the CT and MRI findings of corpus luteum and haemorrhagic ovarian cysts, gynaecologic haemoperitoneum (from either ruptured corpus luteum or ectopic pregnancy) and adnexal torsion, with an emphasis on differential diagnosis. Additionally, comprehensive and time-efficient MRI acquisition protocols are provided.

The Copeman nodule is a disease of the subcutaneous soft tissue consisting in subcutaneous adipose tissue herniation through the superficial muscular fascia. A 30-year-old female patient presented with chronic left pain just above the iliac crest. Ultrasound examination showed subcutaneous adipose tissue herniation through the superficial muscular fascia with a hernia gap of 15.9 mm in diameter. Then the patient underwent surgery under local anesthesia with suturing of the hernia gap and immediate regression of chronic pain. Ultrasound can accurately highlight or exclude the presence of Copeman nodule and, in our view, should be used as first examination in patients with superficial chronic pain to the right or left side.

Generally, small quantities of adipose tissue is present in the thyroid gland. The adenolipoma of the thyroid gland is considered a rare finding. It consists in a benign, encapsulated neoplasm composed of mature adipose tissue and glandular elements. We report a case of a 71 year-old female patient presenting with swelling of the anterior neck and history of airway obstruction. Ultrasound (US) examination showed a bulky multinodular goiter which caused dislocation and compression of the trachea. The scans performed at the level of the isthmic region showed the presence of a hyperechoic oval formation with a homogeneous echostructure and regular contours; these characteristics suggested the lipomatous nature of the nodule. The patient was subsequently subjected to a Computer Tomography (CT) of the neck for a pre-operative balance of the goitre and to exclude extra-thyroid pathologies. The CT scan confirmed the sonographic findings, and the probable adipose nature of the isthmic formation. After the patient has been subjected to total thyroidectomy and histological examination confirmed the diagnosis of adenolipoma.