2 Photomicrographs show a tumour composed of variably sized tubules (a: Hematoxylin and eosin stain [H&E] x100) and cystic spaces (b: H&E x100) that are separated by thin, hypocellular fibrovascular
septae (c: H&E x200), with the lining epithelium showing tombstone appearance focally (d: H&E x200); the tubules are lined by atypical cuboidal to pseudostratified ciliated columnar cells (arrow) with abundant eosinophilic cytoplasm (e: H&E x400), large round to ovoid nuclei with prominent nucleoli (f: H&E x400) and hobnail appearance (g: H&E x600); solid areas show smaller tubules lined by similar atypical cells in a sclerotic stroma (h: H&E x200; i: H&E x400).
The primary tumour in the kidney was composed of large sheets of neoplastic cells of varying sizes with pale to flocculent cytoplasm, well defined cell borders and perinuclear clear zone separated by thin fibrovascular
septa (Figure 3b).
The muscle bundles in the inflamed area were mildly disorganized and surrounded by fibrovascular
The stroma is a fibrovascular
connective tissue that contains collagenous and elastic tissue as well as arteries, veins, lymphatics, nerves and lymphoid tissue.
This unique scaffold translates into an ability to support predictable, organized fibrovascular
Every day he labeled parts such as pith and epidermis, medullary rays and fibrovascular
bundles (Beegel 70-71)
To the Editor: Pterygium is a wing-shaped fibrovascular
growth of the conjunctiva across the limbus onto the cornea.
Benign lesions include the fibrovascular
polyp, myofibroma, pedunculated lipoma, and leiomyoma; malignant lesions include adenocarcinoma from Barrett's oesophagus, squamous cell carcinoma, leiomyosarcoma, fibrosarcoma, rhabdomyosarcoma, melanoma, oat cell carcinoma, and lymphoma.
With the progression of disease, lymphoid depletion became extensive and a fibrovascular
carcass was more evident.
All patients except one who presented with thyroid nodule, showed carcinoid picture on histopathology with nesting trabecular pattern of round cells with rosette formation with fibrovascular
Microscopic features of hyalinizing trabecular tumors * A trabecular-alveolar growth pattern of medium-to large-sized cells * Finely granular, acidophilic, or clear cytoplasm * Round yellow paranuclear cytoplasmic bodies * Polygonal and fusiform cells * Nuclei with prominent grooves, small nucleoli, and cytoplasmic pseudoinclusions and with occasional mitotic figures * Intratrabecular hyaline (Periodic acid Schiff--positive basement membrane material); this resembles amyloid but has a negative amyloid stain * Arrangement of cells in sinuous or straight trabeculae supported by a delicate fibrovascular
stroma (ranging from minimal to modest) * Scant to absent colloid * The possible presence of psammoma bodies * The possible association of lymphocytic thyroiditis Table 2.
Manchester, UK) were used as the matrix for fibrovascular