Characterization of Ovarian Granulosa Cell Tumors using Magnetic Resonance Imaging.

Purpose: To identify the MRI features that aid in the characterization of ovarian granulosa cell tumors.

Materials And Methods: 11 MR pelvis of an adult woman with pathology-proven ovarian granulosa cell tumors with surgical pathology.We evaluated the patient's age, Ca-125, size, laterality, and with MRI features such as indirect signs (i.

[Magnetic resonance imaging accuracy and utility for testicular cancer diagnosis].

Purpose: The purpose of our study is to analyze the imaging findings described in MRI and the histopathologic type of testicular lesions to determine which findings are the best predictors of malignancy.

Materials And Methods: Forty six (46) patients with testicular lesions were initially studied with ultrasound (US) and with testicular MRI (tMRI) on a 1.5-T magnet.

[Cerebral embolism as an atypical presentation of May Thurner syndrome].

May-Thurner syndrome is an anatomic abnormality that predisposes patients to increase risk of paradoxical embolism and stroke. It consists of chronic compression of the left common iliac vein by the overlying right common iliac artery and lumbar spine. This may lead to deep venous thrombosis and paradoxical embolism that could provoke cerebral ischemia in patients with a cardiac shunt from right-to-left.

Sellar region: magnetic resonance imaging assessment of uncommon tumors and pseudotumors.

Objective: To show the usefulness of magnetic resonance imaging in the anatomic and pathologic characterization of the sellar region, emphasizing the differential diagnosis of uncommon non-adenomatous tumors and pseudotumors studied in our institution.

Conclusion: The sellar region is a complex anatomic space with diverse types of tissues from which a wide spectrum of diseases can arise. Magnetic resonance imaging's high tissue resolution and ability to characterize the patterns of tumor growth and biological behavior make it the best imaging technique to study this region.

Self limiting sternal tumors of childhood: two case reports.

Sternal tumours are rare in children. The differential diagnoses include a wide spectrum of benign (from bone cyst to osteoblastoma, osteochondroma and fibrous displasia) and malignant tumours (Ewing's sarcoma, chondrosarcoma rhabdomyosarcoma), inflammatory lesions and infectious processes. The SELSTOC (Self Limiting Sternal Tumours of Childhood) are entities of non-specific origin, they are self-limiting and characterised by a rapidly growing tumour that disappears spontaneously with no history of trauma or active infection.