Clinical Evaluation of Follow-up Methods and Results of Atypical Glandular Cells of Undetermined Significance (AGUS) Detected on Cervicovaginal Pap Smears

College of Medicine, Sungkyunkwan University, Seoul, 100-380, Korea.
Gynecologic Oncology (Impact Factor: 3.77). 06/1999; 73(2):292-8. DOI: 10.1006/gyno.1999.5360
Source: PubMed


The aim of this study was to evaluate the efficacy of the follow-up methods and results of atypical glandular cells of undetermined significance (AGUS) detected on cervicovaginal Pap smears.
From May 1991 to December 1996, we have performed 407, 451 cervicovaginal Pap smears, of which 326 patients were identified as AGUS. Of the 326 patients, 268 patients were followed by repeat Pap smears, colposcopy, cone biopsy, or endometrial curettage.
The incidence of AGUS on Pap smears is approximately 0.08%. The mean age of the patients was 43 years (range 22-79 years). The most common complaint was abnormal vaginal bleeding. The gross findings of the cervix were normal to mild erosion. The following past histories of patients could affect the AGUS results on Pap smear: 30 had cone biopsy, 21 had Pap smears on pregnancy and within 8 weeks after delivery or evacuation, 3 were on hormonal replacement therapy, 2 had intrauterine devices for contraception, and 5 were undergoing follow-up after treatment of cervical cancer. The benign lesions detected during follow-up periods were 6 microglandular hyperplasia of the cervix, 5 atypical squamous metaplasia of the cervix, 2 cervical endometriosis, 2 tubal metaplasia, 10 cervical myoma, 11 cervical polyps, 9 endometrial polyps, 3 uterine myoma, 1 pelvic endometriosis, 1 ovarian endometriosis, and 4 uterine adenomyosis. The premalignant or malignant lesions of the cervix were 4 low-grade squamous intraepithelial lesions, 24 high-grade squamous intraepithelial lesions, 8 glandular atypia/dysplasia, 5 adenocarcinoma in situ, 3 microinvasive adenocarcinoma, and 4 invasive adenocarcinoma. The neoplastic lesions of the uterus were 6 endometrial hyperplasia, 11 endometrial adenocarcinoma, 1 malignant mixed Müllerian tumor, and 1 metastatic endometrial adenocarcinoma. Sixty-seven (25%) of 268 patients followed up were identified as having clinically significant lesions of the cervix or uterus. The detection rates of abnormal lesions were 3.1% with repeated Pap smears (3/98), 28.4% with colposcopic-directed biopsy (31/109), 63.6% with cone biopsy (35/55), and 29.7% with endometrial curettage (19/64).
AGUS on Pap smears showed various benign and malignant lesions of the cervix or uterus. The clinicians must communicate with the pathologists regarding the patient's clinical information as well as the origin of the atypical glandular cells in Pap smears. We recommend that patients with AGUS on Pap smear should undergo immediate intensive diagnostic studies, including colposcopic-directed biopsy with endocervical curettage or cone biopsy, to detect cervical lesions and endometrial curettage to detect endometrial lesions.

16 Reads
  • Source
    • "This could be due to the fact that healthy endometrium is necessary for implantation and development of pregnancy. Moreover, the mean age of patients having atypical glandular cells during pregnancy or the postpartum period was 32 years, which was lower than that in non-pregnant populations (44–50) [9] [10] [17] [21]. This could also explain the low incidence of significant endometrial pathology in pregnancy-related AGC since the risk of endometrial pathology in young women is much lower. "
    [Show abstract] [Hide abstract]
    ABSTRACT: The objective of the study was to determine the prevalence and clinical significance of atypical glandular cells (AGC) or atypical glandular cells of undetermined significance (AGUS) diagnosed in pregnant and postpartum women. Smears having a diagnosis of AGC or AGUS, taken from pregnant and postpartum (within six weeks after delivery) women between 1995 and 2008 were reviewed and subclassified according to the Bethesda 2001 classification. Case records were then reviewed and a second cytology review was performed after disclosure of the follow-up data. Among 91,133 smears taken from pregnant and postpartum women, 70 had AGC or AGUS (0.07%) diagnosed. Follow-up data were available in 40 cases, with mean duration of follow-up being 43 months. Among the 40 patients with follow-up data, nineteen had smears with coexisting squamous abnormalities. Thirty patients had positive pathology, including 18 (45%) cervical intraepithelial neoplasia III (CIN III), four (10%) cervical adenocarcinoma-in situ, three (7.5%) squamous cell carcinoma of cervix, four (10%) condylomas and one (2.5%) hydatidiform mole. On review, 24 out of 32 smears with AGC 'not otherwise specified' ('NOS') had significant pathology. AGC found on cervical smears during pregnancy and the postpartum period is uncommon. The chance of having significant cervical pathology, however, is high and colposcopy should be performed.
    European journal of obstetrics, gynecology, and reproductive biology 04/2011; 155(2):213-6. DOI:10.1016/j.ejogrb.2010.12.009 · 1.70 Impact Factor
  • Source
    • "histológicos em mulheres atendidas por atipias de células glandulares de significado indeterminado no exame colpocitológico, segundo diversos autores. Autor (ano) Goff et al. (1992) 16 Lee et al. (1995) 17 Kennedy et al. (1996) 22 Eddy et al. (1997) 15 Zweizig et al. (1997) 20 Duska et al. (1998) 12 Korn et al. (1998) 24 Burja et al. (1999) 4 Cheng et al. (1999) 5 Kim et al. (1999) 23 Ronnett et al. (1999) 18 Chin et al. (2000) 10 Chhieng et al. (2000) "
    [Show abstract] [Hide abstract]
    ABSTRACT: OBJETIVO: avaliar a propedêutica em mulheres com atipias de células glandulares no resultado colpocitológico. PACIENTES E MÉTODOS: foram avaliadas prospectivamente 159 mulheres atendidas por resultado citológico de atipias de células glandulares, entre janeiro e dezembro de 2000. Todas foram submetidas a coleta de nova colpocitologia e a colposcopia. Foi realizada biópsia dirigida em 50 casos, curetagem endocervical em 21 e conização em 75. O desempenho dos métodos propedêuticos foi descrito por estimativas de sensibilidade, especificidade, valores preditivos e razão de verossimilhanças, tendo como padrão-ouro o resultado histológico. RESULTADOS: entre as 51 mulheres que apresentaram neoplasia intra-epitelial escamosa, 29 foram de baixo grau e 22 de alto grau. Cinco mulheres apresentaram adenocarcinoma in situ e seis, neoplasias invasoras. Isoladamente, a sensibilidade e a especificidade da colpocitologia foram respectivamente 88,5 e 39%, e da colposcopia, 74 e 42%. A associação da colposcopia com a colpocitologia elevou a sensibilidade para 98,4%, com queda da especificidade para 10%. A curetagem endocervical apresentou sensibilidade muito baixa (25%). CONCLUSÃO: a presença de atipias glandulares na colpocitologia relacionou-se com lesões cervicais pré-neoplásicas e neoplásicas em 62,2% dos casos submetidos a avaliação histológica. A repetição da citologia e a colposcopia permitiram selecionar as mulheres que se beneficiaram com a avaliação histológica. A conização mostrou-se adequada quando os exames mantiveram alterações morfológicas.
    Revista Brasileira de Ginecologia e Obstetrícia 01/2003; DOI:10.1590/S0100-72032003000300008
  • [Show abstract] [Hide abstract]
    ABSTRACT: This study evaluated the impact of the Bethesda System (TBS) 2001 in reporting of atypical glandular cells (AGC) when using conventional Pap smears (CS) and liquid-based cytology preparations (LBC). Follow-up information for all atypical glandular cells of undetermined significance (AGUS)/ AGC cases encountered in Queen Mary Hospital from July 2000 to June 2004 was analyzed. The difference in percentages associated with certain end points when using different reporting systems and preparation methods were compared. The age trends and time interval between cytologic diagnosis and detection of positive end points were studied. More than half of these cases turned out to be "negative." The majority with "negative" end points belonged to the "not otherwise specified" (NOS) groups (including atypical endometrial cells) in TBS 2001. The connotation of "favor neoplastic" carried a high positive predictive value for significant lesions. Most of the significant outcomes were discovered within the subsequent 6 months. A decreased reporting of "AGC, NOS" and an increased reporting of "atypical endocervical cells, NOS" were noted when using LBC. Subcategorization of AGC in TBS 2001 according to cellular origin and risk of malignancy, which is further enhanced by application of LBC, is useful.
    Acta cytologica 52(2):159-68. · 1.56 Impact Factor
Show more