Spontaneous lung lobe torsion in two pugs

Two, young adult, male pugs presented for spontaneous left-cranial lung lob e torsions. Clinical signs associated with these two cases included increas ed weakness, increased respiratory effort, tachypnea, acute collapse, letha rgy, anorexia, and cyanosis. The torsed lung lobes were excised using a tho racoabdominal stapling device without detorsing the lobes. Both dogs recove red uneventfully, and at least one year postoperatively, no clinical abnorm alities were noted by their owners. Results of this report suggest that spo ntaneous lung robe torsion in pugs occurs and should be a differential diag nosis for pugs with increased respiratory effort, tachypnea, nonproductive cough, acute collapse, cyanosis, and lethargy. Surgical excision may be cur ative.