bull's eye sign
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Target sign
bei cerebralen Metastasen Mammakarzinom in der MRT (T1 mit Kontrastmittel). Das Zeichen ist nicht spezifisch.
There are many bull's eye signs, also referred to as target signs:
Gastrointestinal
- intussusception: see target sign of intussusception
- barium studies
- aphthoid ulcers: earliest lesion seen in Crohn disease
- gastric lymphoma with central ulceration
- gastric adenocarcinoma with central ulceration
- GIST with central ulceration
- haematogenous gastric metastases
Hepatobiliary
- choledocholithiasis: see target sign of choledocholithiasis
- hepatic metastases on ultrasound
- periportal fibrosis on ultrasound
Central nervous system
Peripheral nerves
- peripheral plexiform neurofibromas on MRI
Musculoskeletal
- target sign of hematoma on MRI (also called concentric ring sign on MRI)
- deep rectus femoris muscle injury
- island of red bone marrow with central yellow marrow on MRI
Others
- tumors following radiofrequency ablation
- skin lesions in Lyme disease
- COVID-19 pneumonia (pulmonary target sign)
Siehe auch:
- Hirnmetastase
- Morbus Crohn
- Hirnabszess
- Choledocholithiasis
- Invagination
- Target-Zeichen bei Invagination
- Knochenmark
- Lymphom des Magens
- Gastrointestinaler Stromatumor
- target sign in brain metastases
- target sign liver metastases
- target sign of choledocholithiasis
- plexiformes Neurofibrom
und weiter:
- animal and animal produce inspired signs
- ileokolische Invagination
- Dünndarminvagination
- pseudokidney of intussusception
- fat halo sign of inflammatory bowel disease
- Koloninvagination
- fat halo sign in abdominal CT imaging
- crescent in a doughnut sign
- intussusception on ultrasound
- wheels within wheels sign
- intestinale Invagination
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