case_images: PMC7069535_01
case_images: Basal abdominal CT scan revealing an oval-shaped, homogenous mass, with muscular density, developed in the subcutaneous tissues of the anterior abdominal wall. The mass is well-circumscribed with regular limits clearly differentiated from the surrounding structures
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case_images: PMC7069535_01_GHFBB-13-95-g001.jpg
case_images: F1
case_images: A basal computed tomography (CT) revealed a 7x5 cm well-circumscribed tissue-mass located in the subcutaneous plane of the right iliac fossa (Figure 1).
case_images: Post-contrast abdominal CT scan (later phase) revealing a mild and homogeneous enhancement with a few scattered liquid chambers
case_images: GHFBB-13-95-g002.jpg
case_images: PMC7069535_01_GHFBB-13-95-g002.jpg
case_images: F2
case_images: After intravenous administration of contrast media, the lesion showed a modest and homogeneous enhancement with a few scattered liquid chambers (figure 2).
case_images: Operative view showing a well-defined subcutaneous mass easily enucleated through a selective incision in the right iliac fossa
case_images: GHFBB-13-95-g003.jpg
case_images: PMC7069535_01_GHFBB-13-95-g003.jpg
case_images: F3
case_images: The mass was easily enucleated after a direct anterior approach by a selective incision in the right iliac fossa (figure 3). 
case_images: Macroscopic view of the resected specimen showing an encapsulated solid tumor with heterogeneous appearance and the presence of hemorrhagic as well as mucoid changes
case_images: GHFBB-13-95-g004.jpg
case_images: PMC7069535_01_GHFBB-13-95-g004.jpg
case_images: F4
case_images: Macroscopically, no obvious necrosis was observed (figure 4). 
case_images: Microscopic findings: Tumor proliferation composed of spindle-shaped cells with a benign appearance. No evidence of mitosis or cytonuclear atypia (hematoxylin-eosin staining, original magnification x10)
case_images: GHFBB-13-95-g005.jpg
case_images: PMC7069535_01_GHFBB-13-95-g005.jpg
case_images: F5
case_images: Microscopically, the tumor was composed of proliferating spindle cells arranged in bundles without cytonuclear atypia or abnormal mitoses (Figure 5).
case_images: Immunohistochemical study showing strong and diffuse staining for the S-100 protein. (immunohistochemistry, original magnification x40)
case_images: GHFBB-13-95-g006.jpg
case_images: PMC7069535_01_GHFBB-13-95-g006.jpg
case_images: F6
case_images: Immunohistochemistry showed that the tumor-cells were strongly and diffusely positive for S100 protein, which is consistent with the diagnosis of benign schwannoma (Figure 6).