You are doing a comprehensive history and physical on a 20 y…

You are doing a comprehensive history and physical on a 20 year old female.  She tells you that she began her menses at age 12 and her cycles have been regular.  She is not sexually active.  Upon examination of her breast you note that there is a single, well delineated, mobile, small lobular mass in the outer quadrant of the breast that the 10 0’clock position.  This mass likely represents a …

A 29-year-old married computer programmer comes to your clin…

A 29-year-old married computer programmer comes to your clinic, complaining of “something strange” going on in his scrotum. Last month while he was doing his testicular self-examination he felt a lump in his left testis. He waited a month and felt the area again, but the lump was still there. He has had some aching in his left testis but denies any pain with urination or sexual intercourse. He denies any fever, malaise, or night sweats. His past medical history consists of groin surgery when he was a baby and a tonsillectomy as a teenager. He eats a healthy diet and works out at the gym five times a week. He denies any tobacco or illegal drugs and drinks alcohol occasionally. His parents are both healthy. On examination you see a muscular, healthy, young-appearing man with unremarkable vital signs. On visualization the penis is circumcised with no lesions; there is a scar in his right inguinal region. There is no lymphadenopathy. Palpation of his scrotum is unremarkable on the right but indicates a large mass on the left. Placing a finger through the inguinal ring on the right, you have the patient bear down. Nothing is felt. You attempt to place your finger through the left inguinal ring but cannot get above the mass. On rectal examination his prostate is unremarkable. What disorder of the testes is most likely the diagnosis?