Fumi Kawakami1,2, Yoshiki Mikami3, Tamotsu Sudo4,5, Kiyoshi Fujiwara4, Takanori Hirose2,6, Tomoo Itoh1. 1. Department of Diagnostic Pathology, Kobe University Hospital, Kobe, Japan. 2. Department of Diagnostic Pathology, Hyogo Cancer Center, Kobe, Japan. 3. Department of Diagnostic Pathology, Kumamoto University Hospital, Kumamoto, Japan. 4. Department of Gynecologic Oncology, Hyogo Cancer Center, Kobe, Japan. 5. Section of Translational Research, Hyogo Cancer Center, Kobe, Japan. 6. Department of Community Medicine and Social Healthcare Science, Division of Pathology for Regional Communication, Kobe University Graduate School of Medicine, Kobe, Japan.
Abstract
BACKGROUND: Gastric-type mucinous carcinoma (GAS) is a clinically aggressive variant of cervical adenocarcinoma. This study sought to describe the cytologic features of GAS. METHODS: We reviewed the cervical and endometrial smears of 14 patients with a histopathologic diagnosis of GAS. All slides were conventionally smeared. We included 20 controls with usual-type endocervical adenocarcinoma (UEA). RESULTS: Monolayered and honeycomb sheets were observed in 78.6% (11/14) of patients with GAS, and were prominent in seven patients. Three-dimensional clusters were more prominent in the UEA group. Vacuolar and/or foamy cytoplasm was observed in 71.4% (10/14) of patients with GAS, whereas this finding was rare among those with UEA (2/18). Marked intracytoplasmic neutrophil entrapment was more common in the GAS group (7/14) than in the UEA group (2/18). Intracytoplasmic mucin was present in eight patients with GAS. Nuclei were vesicular in eight patients with GAS, but were homogenous and hyperchromatic in UEA patients. Conspicuous nucleoli were present in nine patients with GAS. Conversely, this finding was rarely observed in UEA patients. CONCLUSIONS: The characteristic cytologic findings of GAS include (1) monolayered and honeycomb sheets, (2) vacuolar and/or foamy cytoplasm, (3) intracytoplasmic neutrophil entrapment, and (4) vesicular nuclei with prominent nucleoli.
BACKGROUND:Gastric-type mucinous carcinoma (GAS) is a clinically aggressive variant of cervical adenocarcinoma. This study sought to describe the cytologic features of GAS. METHODS: We reviewed the cervical and endometrial smears of 14 patients with a histopathologic diagnosis of GAS. All slides were conventionally smeared. We included 20 controls with usual-type endocervical adenocarcinoma (UEA). RESULTS: Monolayered and honeycomb sheets were observed in 78.6% (11/14) of patients with GAS, and were prominent in seven patients. Three-dimensional clusters were more prominent in the UEA group. Vacuolar and/or foamy cytoplasm was observed in 71.4% (10/14) of patients with GAS, whereas this finding was rare among those with UEA (2/18). Marked intracytoplasmic neutrophil entrapment was more common in the GAS group (7/14) than in the UEA group (2/18). Intracytoplasmic mucin was present in eight patients with GAS. Nuclei were vesicular in eight patients with GAS, but were homogenous and hyperchromatic in UEApatients. Conspicuous nucleoli were present in nine patients with GAS. Conversely, this finding was rarely observed in UEApatients. CONCLUSIONS: The characteristic cytologic findings of GAS include (1) monolayered and honeycomb sheets, (2) vacuolar and/or foamy cytoplasm, (3) intracytoplasmic neutrophil entrapment, and (4) vesicular nuclei with prominent nucleoli.
Authors: Gulisa Turashvili; Elizabeth G Morency; Mihaela Kracun; Deborah F DeLair; Sarah Chiang; Robert A Soslow; Kay J Park; Rajmohan Murali Journal: Int J Gynecol Pathol Date: 2019-05 Impact factor: 2.762