PMC5282423_01
STIR and T2-weighted transverse MRI. Observe the huge cystic-like hyperintense mass growing inside the deltoid muscle and invading the scapula. The mass contains some septations but there is no apparent solid component.
CRIOR2017-1690409.001.jpg
PMC5282423_01_CRIOR2017-1690409.001.jpg
fig1
CT scan and magnetic resonance imaging (MRI) were performed and showed an important prescapular necrotic cystic-like mass measuring 9.5 x 6.0 cm (Figures 1-3) with scapular encroachment (bony erosion) (Figure 4).
STIR and T2-weighted transverse MRI. Observe the huge cystic-like hyperintense mass growing inside the deltoid muscle and invading the scapula. The mass contains some septations but there is no apparent solid component.
CRIOR2017-1690409.002.jpg
PMC5282423_01_CRIOR2017-1690409.002.jpg
fig2
CT scan and magnetic resonance imaging (MRI) were performed and showed an important prescapular necrotic cystic-like mass measuring 9.5 x 6.0 cm (Figures 1-3) with scapular encroachment (bony erosion) (Figure 4).
T1 transverse image with fat saturation after intravenous gadolinium injection. Note the enhancement indicating the presence of a solid component inside the mass which in consequence is a pseudocystic mass.
CRIOR2017-1690409.003.jpg
PMC5282423_01_CRIOR2017-1690409.003.jpg
fig3
CT scan and magnetic resonance imaging (MRI) were performed and showed an important prescapular necrotic cystic-like mass measuring 9.5 x 6.0 cm (Figures 1-3) with scapular encroachment (bony erosion) (Figure 4).
CT scan confirming the invasion of the scapula by the mass.
CRIOR2017-1690409.004.jpg
PMC5282423_01_CRIOR2017-1690409.004.jpg
fig4
CT scan and magnetic resonance imaging (MRI) were performed and showed an important prescapular necrotic cystic-like mass measuring 9.5 x 6.0 cm (Figures 1-3) with scapular encroachment (bony erosion) (Figure 4).
On histological examination, abundant myxoid matrix with few cells is observed. Notice the poor vascularization. Normal adjacent skeletal muscle is present on the left side of Figure 4.
CRIOR2017-1690409.005.jpg
PMC5282423_01_CRIOR2017-1690409.005.jpg
fig5
The lesion was not vascularized (Figures 5-7).
On histological examination, abundant myxoid matrix with few cells is observed. Notice the poor vascularization. Normal adjacent skeletal muscle is present on the left side of Figure 4.
CRIOR2017-1690409.006.jpg
PMC5282423_01_CRIOR2017-1690409.006.jpg
fig6
The lesion was not vascularized (Figures 5-7).
At higher magnification, fusiform cells of little size and regular shape are seen. Elongated aspect nuclei are present, without mitotic activity.
CRIOR2017-1690409.007.jpg
PMC5282423_01_CRIOR2017-1690409.007.jpg
fig7
The lesion was not vascularized (Figures 5-7).