All the following are true regarding oat cell carcinoma of lung except
Oat Small-cell carcinoma (oat cell) and adenocarcinoma of the lung, although the most common lung tumors associated with skeletal metastases, rarely cause Many solid tumors associated with hypercalcemia, paicularly squamous cell and renal tumors, produce and secrete PTHrP that causes increased bone resorption and mediate the hypercalcemia through systemic actions on the skeleton. Ref Harrison 19th edition pg 2476
Varient of large cell anaplastic CA
Chemotherapy is effective
Paraneoplastic syndrome may be present
Causes SIADH
Respiratory system