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RN Nursing · Renal and Urinary Assessment · Practice question

An NP is assessing a patient assigned female at birth with a red small lesion at the posterior urethral meatus. This lesion is most consistent with which of the following condition?

Answer & explanation

Correct: Urethral caruncle.

A urethral caruncle is a small, benign, red or reddish-pink polypoid lesion that arises from the posterior lip of the urethral meatus. It occurs almost exclusively in postmenopausal individuals assigned female at birth, where estrogen deficiency leads to urethral mucosal atrophy and eversion. Patients may be asymptomatic or may report dysuria, hematuria, or local discomfort. On examination the lesion appears as a fleshy, vascular, tender mass at the posterior urethral opening, exactly as described in the stem. Urethral mucosa prolapse involves circumferential eversion of the entire urethral mucosa around the meatus, creating a doughnut-shaped mass that encircles the opening rather than being confined to the posterior lip. A cystocele is a herniation of the bladder through the anterior vaginal wall, presenting as a bulge inside the vaginal canal, not a urethral lesion. An epidermoid cyst is a firm, flesh-colored subcutaneous cyst found on the vulva or perineum and is not associated with the urethral meatus. The localized, posterior, red lesion at the meatus is the classic presentation of a urethral caruncle, making it the most consistent diagnosis.

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