Calcifications are basophilic in centre surrounding eosinophilic border resembling psammoma
It was considered to be an encapsulated variant of papillary carcinoma due to similar nuclear features, presence of psammoma
bodies, immunohistochemistry profile and RET/PTC translocation.
Microscopically, DSVPTC is characterized by the following five features: diffuse gland involvement; dense and sclerotic fibrosis; extensive lymphocytic infiltration; numerous psammoma
bodies; and frequent squamous metaplasia.
Psammamatous melanotic schwannoma is circumscribed, heavily pigmented with psammoma
bodies, tumour cells being S-100 positive and CD34 negative.
The presence of psammoma
bodies is useful as they rarely occur in metastases from other tumours.
Clasificacion de la WHO para meningiomas WHO I WHO II WHO III 90 % 5-7 % 1-3 % Benignos Atipicos Anaplasico Meningotelial, Celulas claras Papilar fibroblastico Transicional Cordomas Rabdoide Cuerpos de psammoma
Recurrencia Recurrencia Invasivo, del 7-20 % del 29-40 % recurrente y posreseccion metastasico subtotal
Foamy macrophages and rare psammoma
bodies occurred in the core of the papillae.
Features suspicious for papillary carcinoma included the presence of some features of papillary carcinoma (cytoplasmic grooves, large nuclei and prominent nucleoli, cellular inclusions resulting in an 'Orphan Annie' appearance, and calcified psammoma
bodies), but were insufficient to make the diagnosis.
Se observan cuerpos de psammoma
y ocasionales celulas gigantes multinucleadas.
Nuclear pseudoinclusions and psammoma
bodies, which are characteristic histologic features of meningiomas, are not observed in HPCs.
Bu degisikliklere ragmen psammoma
cisimciklerinin (mikrokalsifikasyonlar) gorulmesi papiller karsinomu telkin eder (13) , (14).
6,11 Frequent calcifications in the form of psammoma
bodies or dystrophic calcification may be present.
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.