In which, lymphatic obstruction is the most frequent factor for pleural effusion [12]. Serous effusions are a common complication of lymphoma. According to Santos et al. [13] reported 256 serous effusions associated with lymphoma, which included 197 pleural. Das et al. [3] reported that the effusion caused by lymphoma UMI-77 nmr was single-sided in 15 cases, and bilateral in 6 cases. Our patient had left-sided pleural effusion that was serous effusion. Medical thoracoscopy has become a core diagnostic and therapeutic tool in pleural disease care, because despite the fact that thoracentesis and pleural biopsy were widely used, there were still approximately

15–20% pleural effusions remain undiagnosed [14]. During the procedure guided biopsies are performed and the extension of the disease in the pleural cavity is assessed, so the biopsy provides a valuable opportunity to achieve the earlier diagnosis

[14]. Moreover, medical thoracoscopy JQ1 cell line under local anesthesia has the same diagnostic accuracy and safety, while it is less expensive than the video-assisted thoracic surgery, since it is performed in the endoscopy suite. Therefore, MT should be performed on these undiagnosed patients, owing to its high sensitivity in malignant and tuberculous pleural effusion [15]. As technology has become more available and confidence in the use of equipment has grown, MT has become less invasive, safer, better tolerated and therefore preferable, which is usually done with single entry ports, and local anesthesia in an endoscopy suite [16]. In this case, MT was performed in our endoscopy room, and only mild chest Dipeptidyl peptidase pain was present in the patient after

examination. In conclusion, we reported a case with pleural effusions, which was diagnosed as T-cell lymphoblastic lymphoma by pleural biopsy from MT. Our case point out the importance of early utilization of a minimally invasive method, the medical thoracoscopy, for the undiagnosed pleural effusion, which provides an ancillary option for physician to make diagnosis of pleural diseases. This work was supported by grants in part from National Natural Science Foundation of China (No. 81272591); in part by a grant from the 12th Five-Year National Science and Technology Program of Social Development, Ministry of Science and Technology, China (No. 2012BAI05B02). QZ and XLH designed the study and drafted the manuscript. XLH, FY were responsible for clinical data collecting. TG performed hispathological examination. FX, XNT and JCZ performed medical thoracoscopy. All authors read, critically revised, and approved the final manuscript. “
“Leiomyomas of the respiratory tract can present anywhere along the tracheo-bronchial tree or within the lung parenchyma.