Multifocal hydatidosis with extensive involvement of the sacrum and the femoral head.

Key Clinical Message: Hydatidosis is a parasitic infection caused by the larval form of "Echinococcus granulosis." Bone localization is rare even in endemic areas. We report an unusual case of an extensive hydatidosis of the right sacrum and femur with muscle involvement.

Spinal Paget's disease with bilevel cord compression and ischemic non-compressive myelopathy treated with zoledronic acid.

Cord compression and ischemic non-compressive myelopathy are a complication of spinal Paget's disease (SPD). SPD usually touches a single spine level. We report an unusual case with bilevel spinal cord compression and dysfunction which was medically treated due to resolution of the vascular steal syndrome.

Giant retrocrural plasmacytoma as a relapse of multiple myeloma.

The aim of our clinical image is to report an unusual retrocrural plasmacytoma relapsing a multiple myeloma.