<unk>  (MCACL) is a very rare malignant mucus-producing neoplasm arising from the uncontrolled growth of transformed epithelial cells originating in lung tissue.
Mucinous cystadenocarcinoma of the lung
Epithelial-myoepithelial carcinoma of the lung
Atypical pulmonary carcinoid tumour
Salivary gland–like carcinoma of the lung
Large cell neuroendocrine carcinoma of the lung
Giant-cell carcinoma of the lung
Sarcomatoid carcinoma of the lung
Basaloid large cell carcinoma of the lung