Fig. 5

Gross photo and histologic finding of the excised mass. Specimens consisted of well-defined, pale yellow, fatty tissue. They had homogeneous, soft, solid, greasy cut surfaces without hemorrhage or necrosis. They were 8 × 4.5 × 2 cm (left), 8 × 4 × 2 cm (middle), and 6 × 4.5 × 1.5 cm (right) (a). Hematoxylin and eosin staining of the biopsy sample showed fatty tissue without any signs of malignant transformation. The adipocytes had significantly larger cross-sectional surface areas of the lipid vacuoles, compared with those from normal regions (40× (b), 200× (c)). The estimated weights were 64.8 g (Left), 57.6 g (Middle), 40.5 g (Right)