PMC4634015_01
The arrow indicates the swollen area of the right leg
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A painful mass (Figure 1) next the previous incision was palpated on the medial side of the right leg; it was 5x7cm in diameter and there was no erythema and no sign of neurovascular compression, recurrence of hydatid disease was suspected.
X-ray of the right leg: increased density of soft tissue in the medial aspect of the tibia
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X-ray of the right leg showed an increased density of soft tissue in the medial aspect of the tibia (Figure 2).
MRI of the right leg, (A) axial T2-weighted: subcutaneous and tibialis posterior cysts; (B) coronal T1 FAT SAT GADO: subcutaneous cystic structure.
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MRI (Magnetic Resonance Imaging) revealed the presence of a subcutaneous collection in proximity to the medial surface of the tibia at the junction of his upper and middle third adherent to the periosteum with a thick and scalloped wall, enhanced after gadolinium injection and fluid filled measuring 52x28x72 mm and a second deep collection at the tibialis posterior muscle measuring 21x9x38 mm sitting in front of the posterior tibial and peroneal arteries (Figure 3).
(A) the red arrow marks the subcutaneous hydatid cyst; (B) view of the resected cyst
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