Pilocytic astrocytoma mimicking cavernous angioma: Imaging features and histological characteristics.

Pilocytic astrocytoma (PA) commonly occurs during the first two decades of life. Typical locations include cerebellum, optic nerve, optic chiasm/hypothalamus and brainstem. PA should be considered in the differential diagnosis of patients with brain tumors manifesting with hemorrhagic onset.

[Imaging of acute cerebellitis in children. Report of 4 cases].

Acute cerebellitis is one of the main causes of acute cerebellar dysfunction in children. It is either infectious, usually viral, post-infectious or post vaccinal in etiology. Diagnosing acute cerebellitis may be difficult in patients with only subtle cerebellar signs and when cerebro-spinal fluid examination is normal.

[MR imaging in spinal cord injury].

Purpose: To describe MR features of spinal trauma and assess the value of MR imaging in the prognosis.

Material And Methods: Retrospective confrontation between initial and follow up MRI findings and clinical features in 7 young patients with spinal cord injury.

Results: Five lesions were due to motor vehicle accidents and 2 lesions were secondary to falls.

[Pseudotumoral form of abdominal tuberculosis: report of four cases].

Purpose: To report the imaging features of four cases of pseudo-tumoral abdominal tuberculosis in order to demonstrate diagnostic difficulties, even in endemic areas, despite expanding imaging modalities.

Material And Methods: We have retrospectively reviewed four cases investigated in our hospital between 1998 and 2002. The first case concerned a 2 year and 6 month old boy admitted for a right iliac fossa mass.

[Hydatid cyst of soft tissues: MR imaging findings (Report of three cases)].

Three cases of hydatid disease of the soft tissues are reported. All presented as soft tissue lesions in the neck and lower extremities. All three cases were studied with ultrasound (US) and magnetic resonance (MR) imaging techniques.

[Magnetic resonance imaging features of cystic meningiomas. Report of four cases].

Four cases of cystic meningioma are reported, and the imaging features and diagnostic pitfalls of cystic meningiomas are reviewed. Cystic meningiomas are infrequent tumors and remain difficult to diagnose in spite of advanced imaging techniques. Our patients were between 15 and 58 years of age, and underwent CT and MR imaging.

[Renal and perirenal abscess and urinary tract obstruction caused by Torulopsis glabrata infection].

We report a case of renal and perinephretic abscesses due to Torulopsis glabrata, in a diabetic women. Fungal obstruction of upper urinary tract was associated. One must maintain a high suspicion for fungal infection when suppurative renal process occurs in a diabetic patient, especially when obstruction and absence of bacteria are noted.

[Kidney carbuncle: diagnostic, bacteriological and therapeutic considerations. Apropos of 11 cases].

Renal carbuncle is a cortical lesion following bacteremia, occurring in patient without any urologic known problems. The analysis of 11 consecutive renal carbuncles showed that one should consider the diagnosis of renal carbuncle in young patients with flank pain, fever, and absence of significant leucocyturia. Our study confirms that renal carbuncle is always caused by staphylococcus aureus and that treatment is based on appropriate antibiotherapy.