<prompt> Wood workers are associated with sinus Ca:Adeno CaSquamous cell CaAnaplastic CaMelanoma  <response>: Ans. A Adeno Ca Ref. Dhingra 5thed p 219, 6thed p 205 Workers of furniture industry develop adenocarcinoma of the Ethmoids and upper nasal cavity. While those engaged in Nickel refining get squamous cell and Anaplastic carcinoma. 