CPT® Code 55680

A Mullerian duct cyst is classified as a rare congenital anomaly found in males, resulting from the incomplete regression of the caudal ends of the fused Mullerian duct during fetal development. Typically, these cysts are situated in the midline of the body, specifically located behind the bladder. They originate from the region known as the verumontanum, which is a structure in the male reproductive system, and are connected to it via a stalk. Importantly, these cysts do not have any communication with the urethra, which distinguishes them from other types of cysts that may affect urinary function. The surgical procedure coded as CPT® 55680 involves the excision of this cyst, which is performed using a suprapubic approach. This technique entails making an incision in the abdomen and opening the peritoneum to access the area behind the bladder. During the procedure, the surgeon identifies the prostate gland and the prostatic utricle, carefully incising the surrounding tissue until the Mullerian duct and the cyst are clearly visible. Once identified, the neck of the cyst is ligated to prevent any potential leakage, and the cyst is then excised. Following the removal of the cyst, the peritoneum is closed, and the abdominal incision is meticulously closed in layers to ensure proper healing and minimize complications.