A 65-year-old male diagnosed by biopsy a case of squamous cell carcinoma of lung, has very high serum calcium levels. Probable cause is?
Paraneoplastic syndromes The most impoant mechanism is the synthesis of a parathyroid hormone-related protein (PTHrP) by tumor cells (Commonly in Squamous cell carcinoma) leading to Hypercalcaemia.
Parathyroid hormone
Parathyroid hormone-related peptide
Calcitonin
Calcitonin-related peptide
Lung Tumor