Cuerpo de psamoma

Un cuerpo de psamoma es una colección redonda de calcio, vista microscópicamente. El término se deriva de la palabra griega ψάμμος (psámmos), que significa "arena".

Causas[editar]

Los cuerpos de psamoma están asociados con histomorfología papilar (similar a un pezón) y se cree que surgen de:

Infarto y calcificación de las puntas de las papilas.
Calcificación de trombos tumorales intralinfáticos.^[1]

Asociación con lesiones[editar]

Los cuerpos de psamoma generalmente son vistos en ciertos tumores como:

Carcinoma papilar de tiroides
Carcinoma papilar de células renales
Carcinoma ovárico papilar seroso y cistoadenocarcinoma^[2]
Adenocarcinomas endometriales (Carcinoma papilar seroso ~3–4%)
Meningiomas, en el sistema nervioso central^[3]
Mesotelioma pleural y peritoneal
Somatostatinoma (Páncreas)^[4]
Prolactinoma de la pituitaria^[5]
Glucagonoma
Adenocarcinoma pulmonar de subtipo micropapilar^[6]

Lesiones benignas[editar]

Los cuerpos de psamoma pueden ser vistos en:

Endosalpingiosis^[7]
Schwannoma melanótico psamomatoso
Nevus melanocítico^[8]

Aspecto[editar]

Los cuerpos de psamoma normalmente tienen un aspecto laminar, son circulares, acelulares y basófilos.

Referencias[editar]

↑ «The origin and significance of thyroid psammoma bodies». Lab. Invest. 43 (3): 287-96. September 1980. PMID 7401638.
↑ Ovarian papillary serous cystadenocarcinoma at WebPath, The Internet Pathology Laboratory for Medical Education at Mercer University School of Medicine. Retrieved July 2011
↑ http://spinwarp.ucsd.edu/neuroweb/Text/br-300b.htm
↑ Lewis RB (2010). «Pancreatic Endocrine Tumors: Radiologic-Clinicopathologic Correlation». RadioGraphics 30: 1445-1464. doi:10.1148/rg.306105523.
↑ Robbin's Pathology, Eight Ed
↑ Emoto K, Eguchi T, Tan KS, Takahashi Y, Aly RG, Rekhtman N, Travis WD, Adusumilli PS (2019). «Expansion of the Concept of Micropapillary Adenocarcinoma to Include a Newly Recognized Filigree Pattern as Well as the Classical Pattern Based on 1468 Stage I Lung Adenocarcinomas». J Thorac Oncol 14: 1948-1961. PMID 31352072. doi:10.1016/j.jtho.2019.07.008.
↑ «Endosalpingiosis as a source of psammoma bodies in a Papanicolaou smear. A case report». J Reprod Med 36 (9): 675-8. September 1991. PMID 1774734.
↑ Rapini, Ronald. Practical Dermatopathology. Elsevier Mosby, 2005, p. 10.

Enlaces externos[editar]

Datos: Q487813
Multimedia: Psammoma bodies / Q487813

[1] «The origin and significance of thyroid psammoma bodies». Lab. Invest. 43 (3): 287-96. September 1980. PMID 7401638.

[2] Ovarian papillary serous cystadenocarcinoma at WebPath, The Internet Pathology Laboratory for Medical Education at Mercer University School of Medicine. Retrieved July 2011

[3] ttp://spinwarp.ucsd.edu/neuroweb/Text/br-300b.htm

[4] Lewis RB (2010). «Pancreatic Endocrine Tumors: Radiologic-Clinicopathologic Correlation». RadioGraphics 30: 1445-1464. doi:10.1148/rg.306105523.

[5] Robbin's Pathology, Eight Ed

[6] Emoto K, Eguchi T, Tan KS, Takahashi Y, Aly RG, Rekhtman N, Travis WD, Adusumilli PS (2019). «Expansion of the Concept of Micropapillary Adenocarcinoma to Include a Newly Recognized Filigree Pattern as Well as the Classical Pattern Based on 1468 Stage I Lung Adenocarcinomas». J Thorac Oncol 14: 1948-1961. PMID 31352072. doi:10.1016/j.jtho.2019.07.008.

[pmid1774734-7] «Endosalpingiosis as a source of psammoma bodies in a Papanicolaou smear. A case report». J Reprod Med 36 (9): 675-8. September 1991. PMID 1774734.

[8] Rapini, Ronald. Practical Dermatopathology. Elsevier Mosby, 2005, p. 10.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]