PMC4238792_01
Images from before and after surgery for pelvic metastasis.. Notes: Osteolytic destruction with soft tissue mass involving the right hemipelvis (zone I-II) was revealed by a pelvis plain radiograph and pelvis 3D-CT imaging scan. Postoperation, the prosthetic positioning was good, with no loosening and migration observed in the latest follow-up. The Harris hip score was 85.. Abbreviation: 3D-CT, three-dimensional computed tomography.
ott-7-2107Fig1.jpg
PMC4238792_01_ott-7-2107Fig1.jpg
f1-ott-7-2107
A pelvic three-dimensional computed tomography (3D-CT) imaging scan showed tumor involvement of the ilium and acetabulum, with an extensive soft-tissue mass 9x8x5 cm in size (Figure 1). MSTS93 system score, and TESS score were excellent at the last follow up (show in Table 1). More than thirty months postsurgery, there is no sign of tumor recurrence and the prosthetic positioning is good, with no loosening or migration (Figure 1).
Preoperative biopsy of pelvic lesion.. Notes: The melanoma had a diffuse growth pattern. The cells of the tumor consisted of spindle-shaped and epithelioid cells with melanin granules scattering around the nucleus in the cytoplasm (hematoxylin and eosin, x200, x400). Immunohistochemicalstains showed positivity for HMB45, Melan-1 antibodies (x200).. Abbreviation: HMB45, human melanoma black 45.
ott-7-2107Fig2.jpg
PMC4238792_01_ott-7-2107Fig2.jpg
f2-ott-7-2107
A diagnosis of metastatic malignant melanoma was confirmed on the basis of the previous medical history and preoperative biopsy examination of the pelvic lesion (Figure 2).