A 36-year-old security officer comes to your clinic, complaining of a painless mass in his scrotum. He found it 3 days ago during a testicular self-examination. He has had no burning with urination and no pain during sexual intercourse. He denies any weight loss, weight gain, fever, or night sweats. His past medical history is notable for high blood pressure. He is married and has three healthy children. He denies using illegal drugs, smokes two to three cigars a week, and drinks six to eight alcoholic beverages per week. His mother is in good health and his father had high blood pressure and coronary artery disease. On physical examination he appears anxious but in no pain. His vital signs are unremarkable. On visualization of his penis, he is circumcised and has no lesions. His inguinal region has no lymphadenopathy. Palpation of his scrotum shows a soft cystic-like lesion measuring 2 cm over his right testicle. There is no difficulty getting a gloved finger through either inguinal ring. With weight bearing there are no bulges. His prostate examination is unremarkable. What disorder of the scrotum does he most likely have?

Correct Answer: A

Rationale: The patient most likely has a hydrocele based on the presentation of a painless, soft cystic-like lesion measuring 2 cm over his right testicle. A hydrocele is a collection of fluid surrounding the testicle within the tunica vaginalis, resulting in a painless scrotal swelling. It is common and can occur at any age but is more common in older individuals. A key feature of a hydrocele is that the swelling is not reducible, meaning it cannot be pushed back into the abdomen. In this patient, there was no difficulty getting a gloved finger through either inguinal ring, ruling out a scrotal hernia. Testicular tumors typically present as painless testicular masses but are usually solid rather than cystic. Varicoceles are enlarged veins within the scrotum and have a characteristic "bag of worms" appearance on palpation, which is not described in this case.

Correct Answer: B

Rationale: Secondary amenorrhea refers to the absence of menstruation for 3-6 months in a woman who previously had regular menstrual cycles. In this case, Jean's lack of menstruation after giving birth and while breastfeeding her child for 6 months likely indicates secondary amenorrhea. This temporary suppression of ovulation and menstruation commonly occurs during breastfeeding due to the high levels of the hormone prolactin, which is responsible for milk production and can inhibit ovulation and menstruation. It is a natural phenomenon known as lactational amenorrhea. Once breastfeeding decreases or stops, menstruation usually resumes within a few months.

Correct Answer: C

Rationale: The described clinical presentation is consistent with internal hemorrhoids. The typical symptoms of internal hemorrhoids include painless rectal bleeding, protrusion from the anus during straining, and a feeling of incomplete evacuation. In this case, the protrusion is observed to be red, moist, and enlarges with bearing down, all indicative of internal hemorrhoids. The enlarged tender area felt on digital rectal examination supports the diagnosis. Additionally, the presence of blood on the glove after the examination is also suggestive of internal hemorrhoids causing bleeding. Anal fissures typically present with sharp pain during defecation and may have visible tears in the anal mucosa. External hemorrhoids are usually more painful and can be felt as a lump around the anus. Anorectal fistulas have different signs and symptoms, including discharge of pus and recurrent infections.

Correct Answer: D

Rationale: Nodules are a characteristic finding in an inflammatory joint condition such as rheumatoid arthritis. Nodules are small, firm lumps that can develop near the affected joint and are often indicative of an underlying inflammatory process. Tenderness, cool temperature, and ecchymosis can be seen in various musculoskeletal conditions, but nodules specifically point towards an inflammatory process in the joint.

Correct Answer: B

Rationale: A condylar joint is a type of synovial joint that allows movement in two planes, typically flexion/extension and abduction/adduction. The interphalangeal joints of the hand, which are the joints between the phalanges (finger bones), exhibit this type of movement, making them an example of a condylar joint. The hip joint (choice A) is a ball-and-socket joint, the temporomandibular joint (choice C) is a hinge joint, and the intervertebral joint (choice D) is a cartilaginous joint, none of which are examples of condylar joints.