papillae

Variants

 thin papillae / villous papillae

• elongated, thin papillae with thin fibrovascular cores

 large papillae / polypoid papillae

• large cores
• abundant stroma

Structure

 lining epithelium
 core

• abundant stroma
• thin fibrovascular cores

Tumoral examples
 ovarian serous cystadenoma or cystadenocarcinoma
 papillary carcinomas

• thyroid papillary carcinomas
• renal papillary carcinomas
• mammary papillary carcinomas

 papillary mesothelioma

See also

 villi
 villous structures