Use of radiographic examinations in the diagnosis of Pulmonary Hypertrophic Osteopathy (OHP): report on three cases in dogs

Abstract

Pulmonary Hypertrophic Osteopathy (OHP) is a condition characterized by a bone neoformation resulting from periosteal response in long bones and extremities. It is secondary to intrathoracic diseases such as primary or metastatic tumors; pyelo-granulomatous diseases and primary malignancies in the pelvic organs. It may affect several species, and has no racial predisposition or biotype relation, although it’s commonly found in elder animals. The usual clinical signs are: increased temperature and edema in the affected limbs, reluctance to move and limping. However, some signs can be related to the primary disease. The pathophysiology is not yet fully understood, but there are different theories that explain the disease. This paper reports three cases seen in dogs and diagnosed as Pulmonary Hypertrophic Osteopathy in Diagnostic Imaging centers.