Differential Diagnosis for a 2x2 cm Firm, Non-Tender Swelling Overlying the Superior Pole of the Left Testicle
- Single Most Likely Diagnosis
- Epididymal Cyst: This is a common, benign condition that can present as a firm, non-tender swelling adjacent to the testicle, often at the superior pole. The absence of injury and the specific location make this a plausible diagnosis.
- Other Likely Diagnoses
- Hydrocele: A collection of fluid around a testicle that can cause swelling, which might be firm and non-tender. It's a common condition and could be considered given the description.
- Spermatocele: A benign cystic accumulation of sperm that arises from the head of the epididymis, which could present similarly to an epididymal cyst.
- Varicocele: An enlargement of the veins within the scrotum, which can feel like a firm, non-tender swelling, especially when the patient is standing.
- Do Not Miss Diagnoses
- Testicular Tumor: Although less likely given the description of the swelling being non-tender and located over the superior pole, testicular cancer can present in various ways, including as a firm, non-tender mass. Missing this diagnosis could have severe consequences.
- Epididymitis: Inflammation of the epididymis, usually due to infection, which can present with swelling and might initially be non-tender. It's crucial to consider this, especially if there's any possibility of infection.
- Rare Diagnoses
- Adenomatoid Tumor: A rare, benign tumor of the epididymis or testicle that could present as a firm swelling.
- Cystic Dysplasia of the Testis: A rare congenital anomaly that could result in cystic changes within the testicle, potentially feeling like a firm, non-tender swelling.
- Malignant Mesothelioma of the Tunica Vaginalis: An extremely rare tumor arising from the lining of the tunica vaginalis, which could present with a swelling around the testicle.