"They are more common in young men (20-40 years) 2. Approximately 30% of patients have vHL and ~35% (range 10-60%) of patients with vHL have papillary cystadenoma(s) 1,2."
"Lesions are usually arising from the head of the epididymis and can present as a cystic lesion with a thick wall and several peripheral solid nodules with increased vascularity, partially or completely cystic or solid lesion and measuring up to 3 cm in diameter 1."