76 year old man with a breast mass
Diagnosis: Benign mixed tumor of skin appendageal origin (chondroid syringoma)
Discussion: The submitting pathologist considered a diagnosis of fibroadenoma, although acknowledged that would be a rare diagnosis in a man. The low power view showing a sharply circumscribed mass, with the clinical history of a breast mass, suggests that diagnosis. Closer examination however shows stromal changes characteristic of benign mixed tumor (chondroid syringoma). Moreover, the location within the dermis clinches the diagnosis.