PMC552326_01
A fist-sized tumor arising in the subcutaneous adipose tissue in the inguinal region. An arrow indicates the navel.
1477-7819-3-14-1.jpg
PMC552326_01_1477-7819-3-14-1.jpg
F1
The overlying skin appeared normal without ulceration (Figure 1), and there was no inguinal lymphadenopathy.
Computed tomography depicted a solid tumor with heterogeneous contrast enhancement (arrowheads) in the adipose tissue.
1477-7819-3-14-2.jpg
PMC552326_01_1477-7819-3-14-2.jpg
F2
Computed tomography depicted a solid tumor with heterogeneous contrast enhancement in the adipose tissue, and no metastases to the liver and lung (Figure 2).
The tumor comprised spindle-shaped cells with high cellularity in parts (hematoxylin-and-eosin; original magnification, x 100).
1477-7819-3-14-3.jpg
PMC552326_01_1477-7819-3-14-3.jpg
F3
Routine histological examination with hematoxylin-and-eosin revealed that the tumor comprised spindle-shaped cells with high cellularity in parts (Figure 3) and two mitoses per 10 high-power fields.
Spindle-shaped cells showing strong immunoreactivity for desmin in the cytoplasm (Desmin immunohistochemistry; original magnification, x 400).
1477-7819-3-14-4.jpg
PMC552326_01_1477-7819-3-14-4.jpg
F4
As the tumor cells showed only immunoreactivity for desmin (Figure 4) and alpha-smooth muscle actin, a diagnosis of leiomyosarcoma of subcutaneous adipose tissue origin was confirmed.