PROFILBARU.COM

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

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

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

Los cuerpos de psamoma pueden ser vistos en:

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

Aspecto

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

Referencias

↑ «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

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]