Acute urinary retention in an adolescent as the presenting symptom of lichen sclerosus et atrophicus.

BACKGROUND

A rare case of acute urinary retention caused by labial fusion in an adolescent is described and the possible causes are discussed.

CASE: A 17-year-old girl, not sexually active, presented to our emergency service for acute urinary retention. Genital examination revealed labia minora fusion from the clitoris to the vaginal fourchette; urethra, and clitoris were not visualized. Sexual abuse and trauma were excluded. The labia minora were manually separated in the operating room revealing a normal vagina and urethral meatus. Skin biopsies taken from the fused labia minora revealed Lichen Sclerosus et Atrophicus.

SUMMARY AND

CONCLUSION

Urinary retention may be seen in the face of complete adhesion of the labia minora, a rare event in postpubertal individuals. In such cases, a suspicion of underlying pathology such as asymptomatic Lichen Sclerosus should be raised and be confirmed by a biopsy.