Gynaecomastia

Gynaecomastia is a hormonally dependent lesion appearing most often in adolescents and older male patients. It can be classified as juvenile, idiopathic or drug-related.
Cytological diagnostic features

• Low to moderate cellularity
• Groups of ductal cells
• Occasional apocrine cells
• Occasional mild nuclear atypia and nucleoli
• Stromal bipolar naked nuclei