cabeAEBM
cabecera15

José Luis Bancalero Flores

Servicio de Bioquímica Clínica. Hospital Universitario Miguel Servet

Wednesday, 30 December 2020

LITHIASIS ON FOREIGN BODIES

Written by María Santamaría González | José Luis Bancalero Flores | Claudia Abadía Molina

LITIASIS SOBRE CUERPOS EXTRAÑOS
Figure 1. Lithiasis on suture thread in a 79-year-old man. A) and B) Lithiasis on suture thread. C) Fragment: 55% whewellite, 40% weddellite and 5% hydroxyapatite. D) Infrared spectrum (IRS) of organic matter. E) IRS corresponding to whewellite, weddellite, and hydroxyapatite.

The main cause of lithogenesis is supersaturation of some constituents in urine. Other factors as extreme pH, anatomical malformations or presence of promoters can facilitate this process too.