Correlation of histopathologic findings with clinical predictors of disease recurrence and progression to vulvar carcinoma in patients with differentiated vulvar intraepithelial neoplasia (dVIN)

Objective

To evaluate predictors of recurrence and the risk of progression to carcinoma in patients with dVIN.

Methods

36 self-identified White patients with dVIN from 2011 to 2022 were identified. Demographics, treatment and clinical course were abstracted. Histopathologic features and IHC stains were reviewed by 2 subspecialty pathologists. Standard statistical analyses were applied.

Results

Median cohort age was 70 years (range 39-91). Median follow-up was 29.5 months (range 1-123). All patients were Caucasian. 67% had lichen sclerosus (LS) adjacent to dVIN. 56% of patients had recurrent dVIN a median of 11 months from diagnosis. 14 patients had invasive squamous cell carcinoma of the vulva (SCCV) during the study period: 9 (25%) with synchronous dVIN, 5 (14%) developed SCCV after a median of 21.5 months (range 8-57). Patients treated with surgery were more likely to have recurrent/persistent dVIN (p = 0.04) and synchronous or progression to SCCV (p = 0.02) than patients treated with topical therapy. Excluding 9 women with synchronous SCCV, no initial treatment (observation, topical therapy, surgery) was superior at preventing recurrent/ progressive disease in isolated dVIN. Mutation-type p53 expression was identified in 18 (64%) and aberrant GATA3 staining/expression in 20 (56%) of cases. Aberrant GATA3 expression was associated with a higher frequency of synchronous/progression to SCCV (p < 0.05).

Conclusion

dVIN has an aggressive clinical course in white patients with a high risk of recurrence/persistence and synchronous/progression to SCCV despite treatment. Close surveillance with a low threshold for additional biopsies is warranted. P53 and GATA3 IHC stains may be useful markers of disease outcome.

Cerebral metastasis in recurrent squamous cell carcinoma of the vulva: case report and review of the literature

BACKGROUND

Distant metastases from squamous cell cancer of the vulva (VSCC) are encountered rarely and are associated with a poor prognosis. Cerebral metastases have only been described anecdotally.

CASE HISTORY

A 51-year old woman was diagnosed with hepatic metastases due to VSCC. Initial therapy comprised wide local excision of the primary tumor with inguino-femoral lymphadenectomy (LAE) followed by stereotactic radiation of the singular hepatic metastasis while adjuvant chemoradiation of the vulva and lymphatics was declined. 3 years later, she subsequently developed lung and cerebral metastases.

CONCLUSION

The course of metastatic disease in VSCC is poorly understood. Further knowledge of the metastatic patterns in vulvar cancer is required for guidance of future therapeutic interventions.

Hypercalcemia and Extensive Chest Metastasis of Vulvar Squamous Cell Carcinoma

A 73-year-old woman with a diagnosis of vulvar carcinoma submitted to curative surgery 5 years previously, presented to the emergency department with prostration and vulvar haemorrhage. Although the gynaecological examination was unremarkable, she had a mass in the left chest wall and hypercalcemia. A CT scan of the thorax revealed a voluminous left hemithorax mass invading the mediastinum, lung, pleura and chest wall. Ultrasound-guided biopsy of the mass showed infiltration by a well-differentiated keratinizing squamous cell carcinoma (SCC). This case report describes an extremely rare metastatic pattern in vulvar SCC concomitant with paraneoplastic hypercalcemia.