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Case Reports
. 2020 May;2(3):171-174.
doi: 10.1016/j.jhsg.2020.04.002. Epub 2020 Apr 20.

A Juxta-Articular Myxoma of the Thumb

Carolin Claudi  1 , Gustav Andreisek  2 , Bart Vrugt  3 , Joachim Ganser  4
Affiliations
Case Reports

A Juxta-Articular Myxoma of the Thumb

Carolin Claudi et al. J Hand Surg Glob Online. 2020 May.

Abstract

Juxta-articular myxomata are benign tumors that are mostly encountered in the vicinity of larger joints. Few cases in the hand have been reported. We present a case of a juxta-articular myxoma at the metacarpophalangeal joint of the thumb in a 40-year-old man. The preoperative diagnostic work-up included 4-dimensional magnetic resonance angiography and ultrasound. The histochemical examination of the resected tumor established the diagnosis definitively. Follow-up magnetic resonance imaging scheduled with no clinical suspicion of tumor recurrence 9 months after surgery revealed no obvious recurrence. At 14 months, the patient had full motion without pain and declined further imaging.

Keywords: Benign hand tumors; Juxta-articular myxoma; Myxoma; Soft tissue tumors.

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Figures

Figure 1
Figure 1
Juxta-articular myxoma at the ulnar-palmar aspect of the metacarpophalangeal joint of the left thumb (blue arrow).
Figure 2
Figure 2
T2-weighted fat-suppressed axial MRI-image showing a strongly hyperintense, well-circumscribed, septated mass (arrow) adjacent to the metacarpophalangeal joint of the thumb. The line corresponds to the level of the coronal view of Figure 3.
Figure 3
Figure 3
Coronal MRI scan of the first and second rays of the left hand corresponding to the section line in Figure 2. The mass (arrow) has well-defined margins. It is slightly displacing but not invading the surrounding (and normal) musculature and adipose tissue.
Figure 4
Figure 4
Nearly any contrast enhancement of the mass (arrow) surrounded only slightly dilated (for compressed) veins.
Figure 5
Figure 5
Intraoperative view of the left thumb. The juxta-articular myxoma (blue arrow) radially displaced the ulnar-palmar nerve (black star) and artery (black hexagon).
Figure 6
Figure 6
Juxta-articular myxoma of the left thumb.
Figure 7
Figure 7
Hematoxylin eosin–stained histological section showing scantily distributed mesenchymal cells in a myxoid stroma, morphologically consistent with a juxta-articular myxoma.
See this image and copyright information in PMC

References

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