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Adenoid cystic carcinoma of the vagina: A case report
Lan-Zhi Zhang1,2, Li-Yan Huang1,2, An-Liang Huang1,2
1Department of Pathology, West China Second University Hospital, Sichuan University.
Rationale:
Squamous carcinoma is the most common malignancy of vagina. Adenoid cystic carcinoma (ACC) in the vagina is very rare.
Patient Concerns:
In the present study, we present a 45-year-old woman with a palpable swelling in the vagina. The patient reported body paresthesia, chest congestion, expiratory dyspnea, and itching in the thigh root.
Diagnosis:
The ultrasound results revealed inhomogeneous echoes of the muscular layer in the middle and distal of the vagina, and probed a slightly richer blood flow signal. Then biopsy was performed. On microscopic examination, it was observed that tumor cells were arranged in a tubular or cribriform pattern, and exhibited a consistent size, small nuclei, and nuclear fission. The myoepithelium was lined around the glandular cavity, but the myoepithelium was tumorous. Immunohistochemistry was performed for further verification. Vimentin was positive in mesenchyme and CK-P was positive in epithelial cells. P63 and calponin were spotted, which were focal positive around the glandular cavity. Finally, the patient was diagnosed as ACC.
Interventions:
At last, the patient chose chemoradiotherapy, not surgical excision.
Outcomes:
The patient is alive and well 13 months after the initial diagnosis.
Lessons:
ACC in the vagina is extremely rare. To our knowledge, this report is the first case of ACC arising from the vagina in English-language literature. Extensive surgical section of the tumour and chemoradiotherapy are recommended for therapy. Because of rarity, the prognosis of ACC in vagina is not known.
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