"They are thought to represent tiny peripheral pulmonary carcinoids that differ mainly in size from the larger lesions identified as carcinoid tumours with which they share histological, ultrastructural, and immunohistochemical features. Due to this, they are also called pulmonary carcinoid tumourlets by some authors 4. Tumourlets are usually defined as lesions"
Expected headings
"Associations"
"There is a recognised female predilection. Tumourlets are generally encountered in patients around 60 to 70 years of age 2."
"They often occur in association with airway damage, emphysema and fibrosis."