Pathology A 65 years old male diagnosed by biopsy as a case of lung carcinoma, with the paraneoplastic syndrome and increased PTH. Probable cause is- A Parathyroid B Parathyroid related peptide C Calcitonin D Calcitonin related peptide 💡 Explanation A 65 years old male diagnosed by biopsy as a case of lung carcinoma, with the paraneoplastic syndrome and increased PTH. Probable cause is- ✓ Correct Answer: B. Parathyroid related peptide