muskuloskelettale Bandwurmerkrankung
Musculoskeletal
hydatid infection • Primary hydatid cysts of the soft tissues - Ganzer Fall bei Radiopaedia
Hydatid
disease • Hydatid cyst within vastus lateralis muscle - Ganzer Fall bei Radiopaedia
Musculoskeletal
hydatid infection • Hydatid cyst - musculoskeletal - Ganzer Fall bei Radiopaedia
Musculoskeletal
hydatid infection • Hydatid cyst - iliacus muscle - Ganzer Fall bei Radiopaedia
Musculoskeletal
hydatid infection • Musculoskeletal hydatidosis - shoulder - Ganzer Fall bei Radiopaedia
Musculoskeletal
Echinococcus infection as a rare first presentation of hydatid disease: case report. MRI image; T1 coronal view showing cystic lesion with fine capsule () in close relation with flexor carpi ulnaris ()
Musculoskeletal
Echinococcus infection as a rare first presentation of hydatid disease: case report. MRI image; T2 axial view showing unilocular cyst with thin septations
Musculoskeletal hydatid infections are a very rare form of hydatid disease.
For a general discussion, and for links to other system-specific manifestations, please refer to the article on hydatid disease.
Clinical presentation
Patients usually present with slow-growing swelling with or without pain.
Pathology
Location
They can present almost anywhere, but most common locations are:
- vertebrae (see spinal hydatid disease) and para-vertebral soft tissue
- pelvis
- femur and soft tissue of lower limb
- tibia
Radiographic features
Plain radiograph
- may show expansile lytic lesion in the involved bone which can be unilocular or multilocular with coarse trabeculae
- thinning of cortex
- adjacent soft tissue swelling may be seen due to direct extension from the bone or co-existing multiple soft tissue lesions
Ultrasound
Ultrasound may depict lesions in the soft tissue which can be solitary/multiple unilocular/multilocular/complex cystic lesions and/or atypical solid hypoechoic lesion.
CT
Better delineates expansile unilocular or multilocular lytic lesion and demonstrates any soft tissue extension. Co-existing soft tissue multilocular cysts may be seen.
MRI
- T1: hypointense cyst
- may show low-intensity rim
- T1 C+: shows wall enhancement
- T2: hyperintense cyst (uni/multilocular) with a low-intensity rim
- water lilly sign may be seen
Differential diagnosis
- osteomyelitis
- lytic bone lesions
- tuberculous spondylitis
- abscess
- soft tissue tumor (benign/malignant)
Siehe auch:
- Osteomyelitis
- Abszess
- Echinokokkose
- Echinococcus multilocularis
- muskuloskelettale Tuberkulose
- Weichteiltumoren
und weiter:
Assoziationen und Differentialdiagnosen zu muskuloskelettale Bandwurmerkrankung: