Pulmonary mucoepidermoid carcinoma (PMEC) is rare and challenging to diagnose. Its association with paraneoplastic syndromes is poorly described. It is also uncommon for a patient with lung cancer to present with multiple paraneoplastic syndromes. We report a case of a patient with metastatic high-grade PMEC associated with three paraneoplastic syndromes, namely, humoral hypercalcemia of malignancy, ectopic ACTH syndrome, and paraneoplastic leukemoid reaction.
Keywords: ectopic acth syndrome; ectopic cushing’s syndrome; humoral hypercalcemia of malignancy; paraneoplastic leukemoid reaction; paraneoplastic syndrome; pulmonary mucoepidermoid carcinoma.
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