squamous epithelium

Mesothelioma of the Kidney

Thanks to television commercials, most people in the US are probably aware of the main cause of mesothelioma - up to 85% is caused in the lungs from asbestos exposure, especially in people who worked in mines or construction prior to the 1980s.

However, mesothelioma can form in any mesothelium, which is a tough membrane of simple squamous epithelium that makes up the peritoneum, mesentery, pleura, and pericardium.

When it comes to renal (kidney) cancers, it turns out that renal cell carninoma can mimic the appearance of mesothelioma more frequently than renal mesothelium becomes malignant.

Genito-Urinary Surgery and Venereal Diseases. Edward Martin and Benjamin Thomas, 1918.

Squamous epithelium Neoplasia

(A) Tissue core of normal squamous epithelium.

(B) Tissue core of squamous metaplasia.

© Tissue core of severe­ dysplasia (CIN 3).

(D) Tissue core of severe dysplasia (CIN 3) with extensive endocervical gland involvement.

(E) Tissue core of adenocarcinoma in situ.

(F) Tissue core of invasive adenocarcinoma of the cervix.