scholarly journals A Rare Distant Metastasis of Papillary Cystadenocarcinoma Arising from Maxillary Gingiva

2020 ◽  
Vol 13 (2) ◽  
pp. 683-688
Author(s):  
Fumihiro Nishimaki ◽  
Takahiko Gibo ◽  
Keita Tsukada ◽  
Takuro Noguchi ◽  
Toshirou Fukushima ◽  
...  

Papillary cystadenocarcinoma is an uncommon disease with low-grade histological and clinical features. Although the tumor has the potential to produce regional lymph node metastasis, there have been no reports of cases with distant metastasis. We describe a case of papillary cystadenocarcinoma arising from the maxilla that developed pulmonary metastasis 3 years after radical surgery of the primary tumor and regional lymph node. The histological findings were confirmed on resected specimens of the pulmonary nodule and a pathological diagnosis of a metastatic lesion derived from papillary cystadenocarcinoma was made. To our knowledge, this is the first report of the development of pulmonary metastasis in a patient with papillary cystadenocarcinoma. The present case suggests that papillary cystadenocarcinoma has the potential to produce lung metastasis in the clinical course. Based on our experience, we emphasize that long-term follow-up and/or careful examination are necessary in patients with cystadenocarcinoma, especially in patients with lymph node metastasis during the initial surgical therapy.

2019 ◽  
Vol 5 (suppl) ◽  
pp. 62-62
Author(s):  
Qin Xu ◽  
Yibin Lin ◽  
Xian Lin ◽  
Jing Liu ◽  
Li Li ◽  
...  

62 Background: To better understand the mechanism contributing to cervical carcinogenesis, we perform a comprehensive analysis of genomic alterations in cervical cancer (CC). Methods: We conducted whole-exome sequencing of 43 CCs and established strict integrated workflow of genomic analysis. Correlation analysis was performed to measure the relationships between gene mutations and clinical characteristics of CC patients. Results: Genomic analysis revealed 28 genes frequently mutated in CC including BRD4 (4/43), AXL (4/43), MED12 (4/43), which are undetermined genomic features in CC, and identified recurrent genetic mutations in PIK3CA (16/43), KMT2D (11/43), KMT2C (6/43), FBXW7 (5/43), FAT1 (5/43), ERBB2 (4/43), EP300 (3/43) and NFE2L2 (3/43). Intriguingly, CC patients harbored high frequent mutations in BRCA2 (7/43), but not in BRCA1. The relationship between BRCA2 mutations and clinical factors is yet to be determined. The identified mutations predominately resulted in the dysregulation of the PI3K/AKT/mTOR pathway. Interestingly, we found that AXL mutations were positively correlated with FIGO stage ( P = 0.028), regional lymph node metastasis ( P = 0.011) and distant metastasis ( P = 0.022). KMT2C mutations were positively correlated with FIGO stage ( P = 0.004) and distant metastasis ( P = 0.009). SF3B1 mutations were positively correlated with regional lymph node metastasis ( P = 0.027) and distant metastasis ( P< 0.001). NFE2L2, ERBB2, RAC1, MED12, MET, BAP1, PTPRD and HNF1Amutations were positively correlated with distant metastasis ( P = 0.045, P = 0.004, P = 0.022, P = 0.001, P< 0.001, P< 0.001, P = 0.014, P< 0.001, respectively). POLD1 mutations were positively associated with regional lymph node metastasis ( P = 0.029). However, NOTCH1 mutations were negatively associated with regional lymph node metastasis ( P = 0.047). STK11 mutations were negatively associated with FIGO stage ( P = 0.013). Conclusions: Our results highlight the application of deep sequencing for understanding the molecular mechanisms and uncovering potential diagnostic and therapeutic targets of CC.


Author(s):  
Qiang WANG ◽  
Yu CUI ◽  
Li REN ◽  
Haijiu WANG ◽  
Zhixin WANG ◽  
...  

There is no direct evidence to support the existence of regional lymph node metastatic routes in hepatic alveolar echinococcosis, and only a few literature have been reported. There was a case of hepatic alveolar echinococcosis suspected of metastasis of regional lymph node in Clinical Center for Hydatidosis, Qinghai Province, China. The patient was a 24-yr-old male from pastoral area of Seda County, Sichuan Province, China in 2018. He was admitted to the hospital for physical examination and had no special discomfort. Preoperative examination showed liver occupancy and regional lymph node enlargement in the space between liver and stomach. Hepatectomy and lymph node resections were performed. Postoperative pathological results showed that both primary and metastatic lesion were of alveolar echinococcosis. Recovery of patient was good without complications and recurrence. In this case, metastasis was considered because the liver lesion was not directly connected to the lymph node. However, the case was still suspected due to the lack of pathological examination of other lymph nodes in the lymphatic return pathway. Regional lymph node metastasis may be one of the metastatic ways of alveolar echinococcosis.


2016 ◽  
pp. 56-60
Author(s):  
Van Minh Nguyen ◽  
Hong Loi Nguyen ◽  
Thi Kim Anh Dang

Background: To evaluate the clinical, hystopathologycal features and correlation between lymph node metastasis and hystopathologycal grade in patients with carcinoma of the oral cavity. Materials and Methods: From July 2015 to July 2016, 32 patients with carcinoma of the oral cavity at Hue Central Hospital Results: The most common age group from 51 to 60 years and the male/female ratio was 1.9/1. Tumor were usually observed around the the tongue (40.6%) and oral floor (34.4%). Most of the tumor size is larger than 2 cm diameters (> 80%). The regional lymph node metastasis rate was 43.8% and there was a positive correlation between lymph node metastasis and tumor size (p <0.05). Squamous-cell carcinoma was mainly type of histopathology. Difference between the rate of lymph node metastasis in patient groups with different histopathological grade show no statistical significance (p> 0.05). Conclusion: the greater tumor, the higher regional lymph node metastasis. There is no relationship between the lymph node metastasis rate and histopathological grade of oral carcinoma. Key words: : carcinoma of oral cavity, tumor size, lymph node metastasis, histopathology


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