Complex sentence: The only exception occurs in cases where anaplastic large cell lung carcinoma (LCLC) is the second component, here a minimum of 10% of the malignant cells must be LCLC before the tumor is considered to be a c-SCLC.
Split into simpler sentences: The only exception occurs in cases where anaplastic large cell lung carcinoma (LCLC) is the second component. In these instances, a minimum of 10% of the malignant cells must be identified as LCLC before the tumor is considered a c-SCLC.