scholarly journals Rapid metastasis of stage IA primary pulmonary high-grade mucoepidermoid carcinoma with a cystic airspace: a case report and reflection

2021 ◽  
Vol 49 (9) ◽  
pp. 030006052110381
Author(s):  
Yi Chen ◽  
Fangbiao Zhang ◽  
Xiaomei Chen ◽  
Liping Yan ◽  
Xiangyan Zhang ◽  
...  

Primary pulmonary high-grade mucoepidermoid carcinoma (MEC) with a cystic airspace is uncommon, and early metastasis is extremely rare. In such cases, however, it is clinically important for clinicians to consider whether the tumor has spread to the lymph nodes through the cystic airspace. A 77-year-old man presented to our hospital with cough and hemoptysis. Chest computed tomography showed a 25-mm-diameter mass with a cystic airspace located in the upper lobe of the left lung. The possibility of malignancy was considered. Without a definitive preoperative diagnosis, left upper lobectomy and mediastinal lymphadenectomy were performed. Histopathological examination revealed the typical histological characteristics of high-grade MEC (stage IA) and no lymph node metastasis. However, lymph node metastasis was found 6 months after surgical resection, and radiochemotherapy was performed. The patient developed widespread metastatic disease 4 months following completion of radiochemotherapy and died 2 months later. Primary pulmonary MEC with a cystic airspace is a rare malignant disease with uncommon imaging findings. Complete surgical resection is the main treatment method for high-grade MEC. In this case, we hypothesize that early metastasis was caused by seeding of tumor cells through the cystic airspace.

Cancer ◽  
1984 ◽  
Vol 53 (7) ◽  
pp. 1600-1604 ◽  
Author(s):  
In S. Seo ◽  
Jeffery Warren ◽  
L. David Mirkin ◽  
Steven J. Weisman ◽  
Jay L. Grosfeld

Cancers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 965
Author(s):  
Selina Hiss ◽  
Markus Eckstein ◽  
Patricia Segschneider ◽  
Konstantinos Mantsopoulos ◽  
Heinrich Iro ◽  
...  

Objectives: The aim of this study was to assess the number of tumour-infiltrating lymphocytes (TILs) and the expression of Programmed Cell Death 1 Ligand 1 (PD-L1) in Acinic Cell Carcinoma (AciCC) of the salivary glands, to enable a correlation with clinico-pathological features and to analyse their prognostic impact. Methods: This single centre retrospective study represents a cohort of 36 primary AciCCs with long-term clinical follow-up. Immunohistochemically defined immune cell subtypes, i.e., those expressing T-cell markers (CD3, CD4 and CD8) or a B-cell marker (CD20) were characterized on tumour tissue sections. The number of TILs was quantitatively evaluated using software for digital bioimage analysis (QuPath). PD-L1 expression on the tumour cells and on immune cells was assessed immunohistochemically employing established scoring criteria: tumour proportion score (TPS), Ventana immune cell score (IC-Score) and combined positive score (CPS). Results: Higher numbers of tumour-infiltrating T- and B- lymphocytes were significantly associated with high-grade transformation. Furthermore, higher counts of T-lymphocytes correlated with node-positive disease. There was a significant correlation between higher levels of PD-L1 expression and lymph node metastases as well as the occurrence of high-grade transformation. Moreover, PD-L1 CPS was associated with poor prognosis regarding metastasis-free survival (p = 0.049). Conclusions: The current study is the first to demonstrate an association between PD-L1 expression and lymph node metastases as well as grading in AciCCs. In conclusion, increased immune cell infiltration of T and B cells as well as higher levels of PD-L1 expression in AciCC in association with high-grade transformation, lymph node metastasis and unfavourable prognosis suggests a relevant interaction between tumour cells and immune cell infiltrates in a subset of AciCCs, and might represent a rationale for immune checkpoint inhibition.


2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Yuqing Cheng ◽  
Mingzhan Du ◽  
Xiaoli Zhou ◽  
Lingchuan Guo ◽  
Kequn Xu ◽  
...  

2019 ◽  
Vol 108 (4) ◽  
pp. 1021-1028
Author(s):  
Yoshihisa Shimada ◽  
Yujin Kudo ◽  
Hideyuki Furumoto ◽  
Kentaro Imai ◽  
Sachio Maehara ◽  
...  

2019 ◽  
Vol 10 (7) ◽  
pp. 1597-1604 ◽  
Author(s):  
Zhirong Zhang ◽  
Jinbai Miao ◽  
Qirui Chen ◽  
Yili Fu ◽  
Hui Li ◽  
...  

2018 ◽  
Vol 31 (Supplement_1) ◽  
pp. 176-176
Author(s):  
Ryosuke Hirohata ◽  
Manabu Emi ◽  
Yoichi Hamai ◽  
Yuta Ibuki ◽  
Morihito Okada

Abstract Background Malignant melanoma of the primary esophagus is rare, in general it has high malignancy and poor prognosis. We report two cases of early-stage primary malignant melanoma of esophagus (PMME) underwent subtotal esophagectomy. Methods Case presentation Results [Case 1]A 66-year-old man was pointed out a black legion on the lower esophagus by upper gastrointestinal endoscope for screening purposes. The lesion was diagnosed as malignant melanoma by biopsy. In addition, another black lesion was also found in the pharynx, but there was no malignant cell. Other examinations did not reveal any findings of lymph node metastasis and distant metastasis. We diagnosed PMME (T1aN0M0 Stage 0) and performed surgical resection. Pathologically it was pT1a (LPM), pN0. There is no recurrence, and it is under observation. [Case 2] A 51-year-old woman was conducted upper gastrointestinal endoscopy for the purpose of scarring epigastric pain, and a black lesion was pointed out in lower esophagus. Surgical resection was performed with diagnosis of PMME (T1bN0M0 Stage I). The pathological stage was pT1a (MM), pN0. Conclusion The 5 year survival rate of malignant melanoma of primary esophagus is poor with about 30 to 35%, and especially in cases with lymph node metastasis, the survival rate further decreases. The both cases were discovered accidentally by endoscopic examination, leading to early diagnosis and early treatment. Therefore, long survival is expected. There is also a report that melanosis is associated with melanoma, so case 1 requires careful follow-up observation. Disclosure All authors have declared no conflicts of interest.


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