New pattern-based personalized risk stratification system for endocervical adenocarcinoma with important clinical implications and surgical outcome

Andres A. Roma, Toni Ann Mistretta, Andrea Diaz De Vivar, Kay J. Park, Isabel Alvarado-Cabrero, Golnar Rasty, Jose G. Chanona-Vilchis, Yoshiki Mikami, Sung R. Hong, Norihiro Teramoto, Rouba Ali-Fehmi, Denise Barbuto, Joanne K.L. Rutgers, Elvio G. Silva

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


We present a recently introduced three tier pattern-based histopathologic system to stratify endocervical adenocarcinoma (EAC) that better correlates with lymph node (LN) metastases than FIGO staging alone, and has the advantage of safely predicting node-negative disease in a large proportion of EAC patients. The system consists of stratifying EAC into one of three patterns: pattern A tumors characterized by well-demarcated glands frequently forming clusters or groups with relative lobular architecture and lacking destructive stromal invasion or lymphovascular invasion (LVI), pattern B tumors demonstrating localized destructive invasion (small clusters or individual tumor cells within desmoplastic stroma often arising from pattern A glands), and pattern C tumors with diffusely infiltrative glands and associated desmoplastic response. Three hundred and fifty-two cases were included; mean follow-up 52.8 months. Seventy-three patients (21%) had pattern A tumors; all were stage I and there were no LN metastases or recurrences. Pattern B was seen in 90 tumors (26%); all were stage I and LVI was seen in 24 cases (26.6%). Nodal disease was found in only 4 (4.4%) pattern B tumors (one IA2, two IB1, one IB not further specified (NOS)), each of which showed LVI. Pattern C was found in 189 cases (54%), 117 had LVI (61.9%) and 17% were stage II or greater. Forty-five (23.8%) patients showed LN metastases (one IA1, 14 IB1, 5 IB2, 5 IB NOS, 11 II, 5 III and 4 IV) and recurrences were recorded in 41 (21.7%) patients. This new risk stratification system identifies a subset of stage I patients with essentially no risk of nodal disease, suggesting that patients with pattern A tumors can be spared lymphadenectomy. Patients with pattern B tumors rarely present with LN metastases, and sentinel LN examination could potentially identify these patients. Surgical treatment with nodal resection is justified in patients with pattern C tumors.

Original languageEnglish (US)
Pages (from-to)36-42
Number of pages7
JournalGynecologic oncology
Issue number1
StatePublished - Apr 1 2016


  • Classification system
  • Endocervical adenocarcinoma
  • Invasive carcinoma
  • Lymph node metastasis
  • Pattern-based
  • Risk stratification

ASJC Scopus subject areas

  • Oncology
  • Obstetrics and Gynecology


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