Caption: Figure 5: (a) Pathology section of right thyroid lobe: red arrow for psammoma
Based on the histopathology and the IHC reactions, the lesion appeared benign and was diagnosed as adenomatoid tumor with psammoma
(1) Histopathologically, PJOF shows the presence of numerous small round ossicles called psammoma
bodies in a cellular fibrous stroma.
Caption: Figure 3: Microscopically, diffusely scattered tumor aggregates, extensive fibrosis, marked lymphocytic infiltration with formation of lymphoid follicles, and abundant psammoma
bodies (a) were evident against a background of Hashimoto's thyroiditis (b) (Hematoxylin & Eosin stain x40).
The presence of nuclear pseudoinclusions, psammoma
bodies and the absence of significant atypia, in most cases, should allow distinction from SCC.
These criteria mainly included the morphology of the nucleus and its location within the cell, the existence and the shape of the cytoplasm, the presence of psammoma
bodies, the cell-to-cell contact, the cellular density within the specimen, the growth pattern (i.e., diffuse, well sorted), and the presence of blood vessels.
Nuclear pseudoinclusions and psammoma
bodies, which are characteristic histologic features of meningiomas, are not observed in HPCs.12 Both meningiomas and HPCs are vimentin positive, suggesting a mesenchymal origin.
Bu degisikliklere ragmen psammoma
cisimciklerinin (mikrokalsifikasyonlar) gorulmesi papiller karsinomu telkin eder (13) , (14).
A pathologist reported that the tissue was a benign serous papillary rumor with psammoma
The stroma presented fibroblastic reaction and were accompanied by psammoma
"Presence of nanobacteria in psammoma
bodies of ovarian cancer: evidence for pathogenic role in intratumoral biomineralization, Histopathology, December 2004.
Raras variantes histologicas de neurofibroma incluyen cambios epitelioides, musculo esqueletico, glandulas benignas, pseudorosetas, celulas pigmentadas de melanina o cuerpos de psammoma
, lo que hace que muchas variantes de neurofibroma se hayan reportado, entre ellos el clasico, el mixoide, el celular, el hialinizado, epitelioide, difuso, paciniano, pigmentado, granular, lipomatoso, con celulas 11 dendriticas, con pseudorosetas y con rabdomiosarcoma.