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  • Title: Preoperative differential diagnosis of minimal deviation adenocarcinoma and lobular endocervical glandular hyperplasia of the uterine cervix: a multicenter study of clinicopathology and magnetic resonance imaging findings.
    Author: Takatsu A, Shiozawa T, Miyamoto T, Kurosawa K, Kashima H, Yamada T, Kaku T, Mikami Y, Kiyokawa T, Tsuda H, Ishii K, Togashi K, Koyama T, Fujinaga Y, Kadoya M, Hashi A, Susumu N, Konishi I.
    Journal: Int J Gynecol Cancer; 2011 Oct; 21(7):1287-96. PubMed ID: 21685796.
    Abstract:
    OBJECTIVE: To clarify the preoperative differential diagnosis and management of minimal deviation adenocarcinoma (MDA) and lobular endocervical glandular hyperplasia (LEGH), a multicenter study was performed. METHODS: A total of 112 patients who underwent conization or a hysterectomy for suspected MDA were collected from 24 hospitals. The pathological diagnosis in each case was determined by a central pathological review board. The diagnostic significance of clinicopathologic findings including results of magnetic resonance imaging (MRI), Papanicolaou (Pap) smears, and testing for gastric mucin was analyzed. RESULTS: The central pathological review identified 37 cases of Nabothian cyst or tunnel cluster, 54 cases of LEGH, 6 cases of MDA, 11 cases of adenocarcinoma, and 4 cases of benign disease. Lobular endocervical glandular hyperplasia was often associated with adenocarcinoma in situ, MDA, and mucinous adenocarcinoma. Three MDA patients had a recurrence, whereas none of LEGH patients had a recurrence irrespective of the type of surgery. On MRI, LEGH appeared as a characteristic multicystic lesion with an inner solid component, whereas MDA showed a predominantly solid pattern. A Pap smear or gastric mucin alone had limited diagnostic power. However, a combination of these findings is useful; that is, a cystic structure with inner solid components on MRI associated with mild glandular atypia and gastric mucin strongly suggested LEGH (24/26, 92%). A solid structure with atypical glandular cells was indicative of MDA or adenocarcinoma (5/5, 100%). CONCLUSIONS: The combination of MRI, Pap smears, and gastric mucin will improve the accuracy of the preoperative diagnosis of MDA and LEGH. Patients suspected of having LEGH may need to be treated with less aggressive methods.
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