Cytology cell blocks from malignant pleural effusion are good candidates for PD-L1 detection in advanced NSCLC compared with matched histology samples

Table 1 Clinical and pathologic details of patients and specimens

Characteristic	No.	Adequate (%)
Specimens	248	225 (90.7)
MPE cell blocks	124	114 (91.9)
Histology specimens	124	111 (89.5)
Site
Lung	75
Regional/distant lymph nodes	29
Thorax/mediastinum	16
Bone	2
Subaxillary/abdominal mass	2
Type
Surgical resection	11	11 (100)
EBUS-TBNA	8	8 (100)
Biopsy	105	92 (87.6)
Endobronchial forceps biopsy	38	30 (78.9)
CTG-CN	31	30 (96.8)
Other histologic biopsy	36	32 (88.9)
Patients	124
Age (median) (y)	29–85 (61)
Sex
Male	80
Female	44
Diagnosis
Adenocarcinoma	108
Squamous cell	11
NSCLC, NOS	5

Abbreviations: MPE malignant pleural effusion, CTG-CN computed tomography-guided core needle biopsy, EBUS-TBNA endobronchial ultrasound-guided transbronchial needle aspiration biopsy, NSCLC, NOS non-small cell lung carcinoma, not otherwise specified

ISSN: 1471-2407