Torsion of the Falciform Ligament Diagnosed by Imaging Tests - Case Report of an Unusual Disease.

The falciform ligament is a peritoneal double layer that anatomically divides the right and left hepatic lobes. Abnormality of the falciform ligament is rare - less than 20 cases of torsion of the falciform ligament have been reported to date in adults. The pathophysiology of these entities is similar to intra-abdominal focal fat infarction. The clinical of the patient with torsion of the falciform ligament is abdominal pain of sudden onset and focal location. Laboratory tests can lead to diagnostic confusion with cholecystitis. Ultrasonography is usually the initial evaluation test, but the gold standard diagnosis is computed tomography. We report the case of a 30-year-old female patient reporting sudden abdominal pain that radiates to the dorsal region associated with nausea and vomiting diagnosed with torsion of the falciform ligament with ultrasonography and confirmed with computed tomography. She was treated conservatively without the need for surgical treatment, being discharged after one week hospitalization.

[Synovial Haemangioma of the Knee - Diagnosis by Magnetic Resonance Imaging].

Synovial hemangioma is a rare nonneoplastic vascular malformation of the synovial membrane described by Bouchut in 1856. Fewer than 200 cases have been described in the literature, corresponding to 1% of all hemangiomas. The presenting symptoms are often non-specific, which often leads to a delay in diagnosis of many years and can result in arthropathy if left undetected. The early diagnosis of a synovial haemangioma is important as recurrent haemarthrosis may lead to irreversible joint damage and chronic inflammatory synovitis. In practice, there is no consensus on the best treatment of synovial hemangiomas in children. Total resection of the tumor can be performed by arthroscopy in localized forms and for small lesions. Open resection associated with synovectomy is necessary when the hemangioma occupies most of synovial membrane.

Artéria trigeminal e aneurisma segmentar da artéria carótida associadas a hemorragia subaracnóide / Trigeminal artery and segmental aneurysm of the carotid artery associated with subarachnoid hemorrhage

A persistência e a falha da involução das comunicações embrionárias entre a circulação cerebral anterior e posterior contribuem para anomalias vasculares em adultos. Esta variação é comumente detectada de forma incidental, causando sintomas muito raramente. Sua proximidade com os nervos oculomotor, troclear e abducente podem levar a paresia muscular ocular. Em alguns casos pode causar tinnitus pulsátil e ao espasmo de hemiface. Muitos casos de artéria trigeminal foram relatados como associados a aneurismas intracranianos.

The persistence and failure of the involution of embryonic communications between the anterior and posterior cerebral circulation contribute to vascular anomalies in adults. This variation is commonly detected incidentally, rarely causing symptoms. Its proximity to the oculomotor, trochlear, and abducent nerves can lead to ocular muscle paresis. Sometimes it can cause pulsatile tinnitus and hemiface spasm. Many cases of trigeminal artery have been reported to be associated with intracranial aneurysms.