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Table 1 Summary of histologic classification of DM-associated lung malignancies reported in the literature (1947–2017) [2353]

From: Ground-glass opacity heralding invasive lung adenocarcinoma with prodromal dermatomyositis: a case report

Histology

Cases

Frequency

Small cell carcinoma

21

43.8%

Squamous cell carcinoma

8

16.7%

Adenocarcinoma

8

16.7%

Neuroendocrine

3

6.3%

Undifferentiated

2

4.2%

Other

6

12.5%

Total

48

100.0%

  1. The category “other” comprises mixed histology (e.g., adenosquamous), anaplastic cell carcinoma, alveolar cell carcinoma, giant cell carcinoma, and non-small cell carcinoma not otherwise specified