Adenocarcinoma mucinoso bien diferenciado de tipo gástrico (adenoma maligno): un reto diagnóstico / Gastric-type mucinous well differentiated adenocarcinoma (adenoma malignum): a diagnostic challenge

Resumen ANTECEDENTES: El adenocarcinoma mucinoso bien diferenciado de tipo gástrico (adenoma maligno) es una variante histológica poco frecuente de adenocarcinoma mucinoso cervical. La hidrorrea, el sangrado vaginal persistente y las formaciones quísticas cervicales son manifestaciones sugerentes de la enfermedad. CASO CLÍNICO: Paciente de 52 años, que acudió a consulta por hidrorrea y sangrado genital persistente. Después de la exploración física se tomaron muestras de: exudado vaginal, citología cervical, biopsia endometrial e identificación de virus del papiloma humano. También se practicaron estudios de: colposcopia, legrado endocervical, ecografía transvaginal, histeroscopia y resonancia magnética. Se visualizaron múltiples quistes de Naboth, menores de 2 cm; líquido en la cavidad uterina y el canal endocervical, sin hallazgos patológicos adicionales. Por la persistencia de los síntomas se decidió efectuar la histerectomía total simple con doble anexectomía, por laparotomía. El reporte anatomopatológico fue: adenocarcinoma mucinoso bien diferenciado de tipo gástrico, estadio IB2 (FIGO). Se prescribieron: tratamiento coadyuvante, radioterapia externa y braquiterapia. Después de 12 esquemas de tratamiento no se identificaron signos de recidiva. CONCLUSIONES: Establecer el diagnóstico anatomopatológico preoperatorio es decisivo para disminuir la morbilidad y mortalidad por adenocarcinoma mucinoso. Es importante establecer el diagnóstico diferencial exhaustivo con lesiones benignas cervicales.

Abstract BACKGROUND: Gastric-type mucinous well differentiated adenocarcinoma (adenoma malignum) is an infrequent cervical mucinous adenocarcinoma. It must be suspected if persistent hydrorrhea or vaginal bleeding are present, as well as multiple cervical cysts. CLINICAL CASE: A case of a 52-year-old woman with persistent hydrorrhea and vaginal bleeding. The study was completed with vaginal culture, cervical cytology and HPV (Human Papiloma Virus), colposcopy, endocervical curettage, transvaginal ultrasound, endometrial biopsy, hysteroscopy and magnetic resonance imaging. Multiple Nabothian cysts <2 cm and fluid in the uterine cavity and the endocervical canal were observed, with no other pathological findings. Due to the symptom persistence and severity, surgical treatment was decided, revealing the diagnosis of gastric-type mucinous well differentiated adenocarcinoma, stage IB2 (FIGO). Adjuvant treatment consisted in external radiotherapy and brachytherapy. After one year of follow-up, the patient did not show any sign of relapse. CONCLUSIONS: Reaching a pathological diagnosis prior to surgery has a crucial importance to decrease morbi-mortality. A thorough differential diagnosis including benign cervical lesions is essential.

Large, Multilocular Cystic Mass in the Uterine Cervix Mimicking Adenoma Malignum / 대한폐경학회지

Multilocular cystic lesions in the uterine cervix can vary widely from benign to malignant. Pseudoneoplastic glandular lesions are benign lesions that are often histologically and radiographically confused with adenoma malignum, which is a rare variant of mucinous adenocarcinoma of the uterine cervix. The benign lesions include uterine cervicitis, tunnel cluster, deep endocervical glands, deep nabothian cysts, endocervical hyperplasia, infectious and reactive atypias. It is crucial but difficult to differentiate between an adenoma malignum and the benign cystic lesions. We report two cases of large nabothian cysts mimicking adenoma malignum. Radiologic findings, signs, and symptoms of these cases are described.

Deep Nabothian Cyst of Uterine Cervix: A Case Report

Herein, a case of nabothian cysts, extending into the deep cervical wall is reported. The radiologic and clinical examinations were suggestive of adenoma malignum. The cysts were incidentally found in a 42 year-old woman with abnormal uterine bleeding of about ten days duration. The patient underwent a total abdominal hysterectomy. A gross examination of the cervix revealed multiple mucin-filled cysts that extended almost to the serosa. On microscopic examination, the cysts were lined by columnar to flattened endocervical type cells, which are usually found in nabothian cysts. No atypical features or mitotic activity were noted. A deep nabothian cyst is a rare benign lesion of the cervix that should be distinguished from a cystically dilated adenoma malignum.