Leiomyosarcoma is considered the most common muscular neoplasm in birds, but is more commonly reported in the smooth muscle trabeculae
of the spleen (GODOY et al., 2009).
Sections of 5 1/4m were used to estimate the volume and volume density of the trabeculae
CT scan represents thickened trabeculae
which merge with normal bone.
A three-dimensional reconstruction of the bone trabeculae
and their medullary spaces at 8 weeks, showing the pattern of the new bone formed and its architecture (Fig.
Radiographically these lesions typically are aligned with the bony trabeculae
and demonstrate mildly spiculated margins.
(3,5) On radiographs, medullary IH found in the metaphysis of long bones usually present as an osteolytic lesion with internal trabeculae
, giving honeycomb or soap-bubble appearance.
Characteristic microscopic findings in hyperostosis included the development of new bone tissue, which appeared as marked thickening of the trabecular structures in the zone, and correspondingly, the narrowing of centrally located bone marrow spaces replaced by a highly vascular fbrous tissue and the presence of prominent basophilic cement lines between these thick, newly formed trabeculae
and the mature bone tissue (McConnell et al., 2006; Thompson et al., 2011).
The hepatoid component consisted of trabeculae
of polygonal cells with moderate amount of eosinophilic cytoplasm, round to oval nuclei and distinct nucleoli, histologically reminiscent of hepatocellular carcinoma.
The mean width of the bone trabeculae
in the localization was calculated.
It is anatomically attached to the left inferior portion of the left atrium and consists of muscular trabeculae
. The left atrial appendage does not contribute, to a large degree, to overall cardiac output.
The tumor is characterized by small, round to ovoid cells forming cords and trabeculae
in a fibromyxoid matrix.
Histopathology revealed an unencapsulated, poorly demarcated, highly cellular neoplasm composed of islands and trabeculae
of neoplastic cells embedded in abundant loose fibrovascular stroma which completely obliterated the cortical bone and sinuses of the rostral skull and infiltrated the surrounding muscle and soft tissue.
Microscopically, the nodule showed a highly cellular, homogenous cell population arranged in nests and trabeculae
(figure 2, A).
Histopathology sections showed a mosaic pattern of bony trabeculae
with multinucleated osteoclasts causing erosions and tunneling.
In the bone tissue of both DL and OCD patients, we observed CD146-positive cells in the bone marrow area around endothelial cells and adipocytes, while we did not find any positive staining in the trabeculae
(Figure 2(a) and supplemental Figure 1, in Supplementary Material available online at https://doi .org/10.1155/2017/9036305).