The category of atypical glandular cells (AGC) in gynecologic cytopathology presents many well-documented diagnostic challenges, the most significant related to high interobserver variability, low specificity, and low positive predictive value. The current Bethesda System provides criteria for specific glandular categories including atypical endocervical cells not otherwise specified (AEC-NOS), AEC favor neoplastic, and atypical endometrial cells. The Bethesda System does, however, acknowledge that in some cases AGC cannot be categorized based upon cell of origin, in which case the generic term "atypical glandular cells" (AGC) may be used. We sought to determine whether further refinement of the current Bethesda System criteria for AEC-NOS might increase the positive predictive value of the general category of AGC. Fifty-three cases of AGC with documented histologic follow-up at the University of Illinois Hospital were reviewed. The cases were graded on each of the eight specific cytologic criteria recommended by the current Bethesda System for AEC-NOS using a study-developed three-tier grading system. Multiple regression analysis showed that four of the cytologic criteria in combination--nuclear enlargement, nuclear pleomorphism, increased nuclear-to-cytoplasmic (N/C) ratio, and cells occurring in sheets and strips with cell crowding and nuclear overlap--discriminated positive histologic outcome slightly better than any single criterion alone. In addition, simple logistic regression analysis showed nuclear enlargement to have a marginal independent association with positive histologic outcome (P = 0.0566). No other criterion was independently associated with outcome. Ancillary methods seem indicated to increase the positive predictive value of AGC at this time.
70 Background: Young age at diagnosis of breast cancer has been reported to be an independent risk factor for disease recurrence. However, there is little data on long term survival of young patients. We present long term follow up of a large cohort of women diagnosed with breast cancer at age 40 and younger. We determined rates of loco-regional recurrence (LRR), distant recurrence, and overall survival and adjusted for the patient and tumor characteristics which potentially predict outcomes. Methods: Following Institutional Review Board approval, data from the medical records of 628 women diagnosed with breast cancer at age 40 or younger between 1996 and 2008 were collected. Survival curves were estimated using the Kaplan Meier method. Results: Median age was 37 years (range: 21-40) and median follow-up was 72 months (range: 5-177). The rates of LRR as a first site of recurrence were 5.56% at 5 years and 12.11% at 10 years. In the entire population, with median follow-up of 72 months, there was no difference in the rates of loco-regional failure between patients who underwent breast conserving therapy (7.34%) compared to mastectomy (7.40%) (p=0.980). The rates of distant recurrence as a first event were 10.65% at 5 years and 14.58% at 10 years. Overall survival was 93.1% at 5 years and 87.26% at 10 years. 79.1% of patients received systemic therapy. For patients who developed disease recurrence, either LRR or distant, median time to first recurrence was 35 months (range: 3-167). Conclusions: Women aged 40 and younger at diagnosis of breast cancer have a good prognosis, with low overall recurrence rates at 5 and 10 years. Local recurrence in our cohort is lower than in prior studies, suggesting advances in therapy have made breast conservation a safe option in young breast cancer patients.
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