Recurrent vertebral hydatid disease: spectrum of MR imaging features.

Introduction: This study aimed to describe a spectrum of magnetic resonance (MR) imaging findings in a case series of four patients with recurrent vertebral hydatid disease (HD).

Methods: Four patients with recurrent spinal HD, who were studied with MR imaging at 1.5T or 0.

Direct rupture of splenic hydatid cyst without volume loss: report of a unique case.

We present a rare case of primary spleen Echinococcus cyst with rupture evidence due to trauma. The cyst presented with an echogenic pattern at ultrasound examination but subsequent CT study revealed calcification of the cyst wall and signs of rupture. Serological tests were positive for echinococcus and eosinophilia defined.

Primary seminal vesicle hydatidosis with exophytic component.

We report a rare case of primary seminal vesicle hydatidosis in a 47-year-old male with symptoms of pain on micturition. Computed tomography examination revealed a smooth bordered, multilocular mass-like lesion with fine septations abutting the left seminal vesicle, suggestive of hydatidosis. Pathological study of surgically excised specimen showed hydatidosis of seminal vesicle with large exophytic growth.

Unusually located osteoid osteomas.

The files of 12 patients (aged 12-33 years) with an equal number of surgically proven osteoid osteomas (OOs) were reviewed in attempt to find a diagnostic algorithm in cases of unusually located OOs. Plain radiography (PR) and thin collimation computed tomography (CT) had been performed in all patients, while bone scintigraphy (BS) had been performed in eight and magnetic resonance imaging (MRI) in two. The OOs were located at juxta- or intra-articular sites, except for one located at the left neck of the L4 vertebra.