Primary malignant urethral melanoma resembling a urethral caruncle
. Urol Case Rep 2017; 15: 28-9.
Melanomas may be confused with urethral polyps, mucosal prolapse or caruncles
The biopsy histology confirmed the diagnosis of urethral caruncle
(Figures 1 and 2).
The seeds are 4-5 mm in diameter, dark green to grey-black, rounded with conspicuous caruncle
The examination demonstrated normal external genitalia, normal urethra without caruncle
, vagina mucosa with mild post-menopausal atrophic changes, grade one cystocele with midline urethral alignment, absence of rectocele, and no stress incontinence with valsalva.
Other differential diagnoses include urethral caruncle
, urethral diverticulum [45, 46], malignant lymphoma, sarcoma, extravesical leiomyoma of the bladder, Gartner's duct cyst, and ectopic urethral orifice .
Primary malignant melanoma mimicking urethral caruncle
. Case report.
on the nasal canthus contains both conjunctival and cutaneous structures and tumours can be of skin or mucosal origin.
Sebaceous carcinoma of the eyelid, eyebrow, caruncle
, and orbit.
The mandibular gland shows a rounded contour and its duct crosses along the occiptomandibular face of the digastric muscle and styloglossus muscle and opens in the mouth on the sublingual caruncle
near the frenulum (Figure 1 and 2).
In this region there is a reddish elevation in the lacrimal caruncle
. The next most acute apex is directed superiorly.
Prostomium bifid, with caruncle
extending to posterior margin of chaetiger 3; no occipital tentacle; no eyes; no pigmentation (Fig.