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Thumb ultrasound: Technique and pathologies

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ABSTRACT

Ultrasound is ideally suited for the assessment of complex anatomy and pathologies of the thumb. Focused and dynamic thumb ultrasound can provide a rapid real-time diagnosis and can be used for guided treatment in certain clinical situations. We present a simplified approach to scanning technique for thumb-related pathologies and illustrate a spectrum of common and uncommon pathologies encountered.

No MeSH data available.


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Synovial sarcoma of the thumb (A-F). Antero-posterior radiograph (A) of the thumb shows destruction at the base of 1st metacarpal (arrow) with prominent adjoining soft tissue (open arrow). Short axis ultrasound image (B) of the thenar region shows a mixed echogenic lesion (arrow). CT (C) and fused FDG-18 PET-CT (D) images show the lesion to be heterogeneously enhancing with increased FDG-18 uptake (open arrow). Three-dimensional FDG-18 PET image (E) shows increased uptake in the thumb (red arrow) and in an axillary node (black arrow). (F) H and E stain histopathological photomicrograph (×40)
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Figure 20: Synovial sarcoma of the thumb (A-F). Antero-posterior radiograph (A) of the thumb shows destruction at the base of 1st metacarpal (arrow) with prominent adjoining soft tissue (open arrow). Short axis ultrasound image (B) of the thenar region shows a mixed echogenic lesion (arrow). CT (C) and fused FDG-18 PET-CT (D) images show the lesion to be heterogeneously enhancing with increased FDG-18 uptake (open arrow). Three-dimensional FDG-18 PET image (E) shows increased uptake in the thumb (red arrow) and in an axillary node (black arrow). (F) H and E stain histopathological photomicrograph (×40)

Mentions: Malignant tumors of the thumb are rare. Synovial sarcoma [Figure 20] arises in the periarticular location contrary to what its name suggests. Ultrasound features of synovial sarcomas can be variable ranging from homogenously hypoechoic lesions with well defined margins to markedly heterogeneous lesions with ill-defined margins.[23]


Thumb ultrasound: Technique and pathologies
Synovial sarcoma of the thumb (A-F). Antero-posterior radiograph (A) of the thumb shows destruction at the base of 1st metacarpal (arrow) with prominent adjoining soft tissue (open arrow). Short axis ultrasound image (B) of the thenar region shows a mixed echogenic lesion (arrow). CT (C) and fused FDG-18 PET-CT (D) images show the lesion to be heterogeneously enhancing with increased FDG-18 uptake (open arrow). Three-dimensional FDG-18 PET image (E) shows increased uptake in the thumb (red arrow) and in an axillary node (black arrow). (F) H and E stain histopathological photomicrograph (×40)
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Related In: Results  -  Collection

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Figure 20: Synovial sarcoma of the thumb (A-F). Antero-posterior radiograph (A) of the thumb shows destruction at the base of 1st metacarpal (arrow) with prominent adjoining soft tissue (open arrow). Short axis ultrasound image (B) of the thenar region shows a mixed echogenic lesion (arrow). CT (C) and fused FDG-18 PET-CT (D) images show the lesion to be heterogeneously enhancing with increased FDG-18 uptake (open arrow). Three-dimensional FDG-18 PET image (E) shows increased uptake in the thumb (red arrow) and in an axillary node (black arrow). (F) H and E stain histopathological photomicrograph (×40)
Mentions: Malignant tumors of the thumb are rare. Synovial sarcoma [Figure 20] arises in the periarticular location contrary to what its name suggests. Ultrasound features of synovial sarcomas can be variable ranging from homogenously hypoechoic lesions with well defined margins to markedly heterogeneous lesions with ill-defined margins.[23]

View Article: PubMed Central - PubMed

ABSTRACT

Ultrasound is ideally suited for the assessment of complex anatomy and pathologies of the thumb. Focused and dynamic thumb ultrasound can provide a rapid real-time diagnosis and can be used for guided treatment in certain clinical situations. We present a simplified approach to scanning technique for thumb-related pathologies and illustrate a spectrum of common and uncommon pathologies encountered.

No MeSH data available.


Related in: MedlinePlus