PMC3504241_01
Anteroposterior and lateral views of plain radiographs of the hand. There is no evidence of bony irregularity.
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fig1
Radiograph findings revealed no bony involvement (Figure 1).
Gross picture four months after the injury. There is a mass at the radio-dorsal aspect of the proximal middle phalanx.
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fig2
After the removal of skin sutures, a palpable mass was noted that begins as a painful over the scar which gradually becomes nontender and gradually increases, as well as firmer to palpation in progressive increase in size at the 19th day after the surgery with continuous extensor programme rehabilitation, and it develops gradual decrease of the range of motion on the metacarpal phalangeal joint as well as the proximal interphalangeal joint even with standard rehabilitation programme; later on, it develop into significant block of flexion and extension (Figure 2).
Anteroposterior and lateral views of plain radiographs taken eight weeks after injury. There is a calcified bony tissue.
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fig3
Radiographic imaging taken with calcifications was noted (Figure 3).
Axial and sagittal FSE T1W, FS T2W, and FS T1W images of the middle finger. There is a heterogenous soft tissue lesion in the radial and extensor aspect of the shaft of proximal right middle finger, measuring 1.0 x 0.7 x 1.8 cm (cross section x long) in size. This lesion is T1W hypointense, T2W heterogeneously hyperintense with some enhancement. This lesion is located underneath the extensor tendon with elevation of the tendon. The extensor tendon is intact and elevated by the mass.
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fig4
T2W heterogeneously hyperintense with some enhancement. The MRI finding was a nonspecific local lesion underneath the extensor tendon of the middle finger at site previous injury. The extensor tendon is intact and elevated by the mass (Figure 4).
Partly calcified bony tissue up to 18 mm x 10 mm x 8 mm adherent to the proximal phalanx of the middle finger that is located underneath the extensor tendon.
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fig5
A bony mass underneath the radial border of the extensor tendon had reached the surface of the proximal phalanx at the radial border (Figure 5).
Partly calcified bony tissue up to 18 mm x 10 mm x 8 mm. The microscopic section shows a nubbin of bone surrounded by fibrovascular connective tissue. The marrow is predominantly fatty with prominent ectatic vessels and a patchy mild lymphocytic infiltrate. The decalcification block all embedded.
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fig6
A bony-calcified tissue was removed up to 18 mm x 10 mm x 8 mm in measurement (Figure 6).