Concomitant Achalasia and Barrett's Esophagus: A Rare Coincidence.

The pathophysiologies of achalasia and gastroesophageal reflux disease with Barrett's esophagus are highly distinct, though the clinical signs and symptoms of both are highly overlapped. The concomitant development of both achalasia and Barrett's esophagus is rare. We describe a case of a patient with a concomitant diagnosis of both pathologies and further explain the epidemiology of carrying both diseases simultaneously.

Malignant Degeneration of Biopsy-Proven Hamartoma to Chondrosarcoma.

Pulmonary hamartomas are benign lesions that are often managed conservatively in the absence of respiratory symptoms. Increasing reports of malignant transformation question if a more aggressive treatment or surveillance practice for these lesions is warranted in adult patients. Herein, we describe a case of a 67-year-old man with a long history of pulmonary hamartoma that demonstrated malignant degeneration into spindle cell malignancy with chondromatous differentiation.