HSPG2 and small cell lung carcinoma: Among the 24 lung carcinomas (including the present one), ADC (11/24, 45.8%) was the most common subtype, followed by SqCC (5/24,20.8%), PLC (4/24, 8.7%), small cell lung carcinoma (3/24, 12.5%) and large cell carcinoma (1/24, 4.2%).