PMC9593111_01
Macroscopic appearance of the fetal sacrococcygeal tumor (A). On cross-section (B), the tumor showed mixed (solid and cystic) structure
RJME-63-1-203-fig1.jpg
PMC9593111_01_RJME-63-1-203-fig1.jpg
F1
On macroscopic cross-section, the sacrococcygeal tumoral formation measuring 33/30 mm showed mixed (solid and cystic) structure (Figure 1, A and B).
The lesion includes glandular structures and rosettes of nervous tissue (A), as well as cartilaginous foci (B). Hematoxylin-Eosin (HE) staining: (A and B) x100
RJME-63-1-203-fig2.jpg
PMC9593111_01_RJME-63-1-203-fig2.jpg
F2
Microscopic examination revealed elements derived from all three germ layers: mature and immature nervous tissue (consisting of rosettes, neuroepithelial tubes), retinal tissue, squamous epithelium, cartilaginous foci, glandular structures, serous acinar structures (Figure 2, A and B).
PMC9593111_02
General macroscopic image of Case No. 2 (A) with a sacrococcygeal tumor of nodular, well defined, predominantly solid aspect on cross-section (B)
RJME-63-1-203-fig3.jpg
PMC9593111_02_RJME-63-1-203-fig3.jpg
F3
The tumor showed a nodular, well-defined aspect; it was predominantly solid with cystic foci, gray, with hemorrhagic areas, and measured 85/55 mm (Figure 3, A and B).
Microscopic examination shows mature and immature nervous tissue arranged in rosettes and neuroepithelial tubes (A), squamous epithelium and glandular structures (B), and cartilaginous foci (C). HE staining: (A-C) x50
RJME-63-1-203-fig4.jpg
PMC9593111_02_RJME-63-1-203-fig4.jpg
F4
Microscopic examination showed the tumor formation consisted of mature and immature nervous tissue (rosettes, neuroepithelial tubes), primitive retinal tissue, squamous epithelium, urothelial islands, cartilaginous foci, bone lamellae, glandular structures, serous acinar structures (Figure 4A,4B,4C).