Hypertrophic osteoarthropathy is a syndrome characterized by periosteal reaction of the long bones. It is usually a secondary phenomenon and can be due to a wide range of conditions including pulmonary, gastrointestinal, hematological and inflammatory pathologies. 

In this case, it may be correctly termed 'hypertrophic pulmonary osteoarthropathy' due to the pulmonary etiology but in general, and in exams, this term should be avoided in favor of 'hypertrophic osteoarthropathy' due to broad range of possible etiologies'.