The purpose of this paper is to report the case of a 62-year-old male diagnosed with a retinal macrocyst secondary to a long-standing retinal detachment in his right eye. At fundoscopy examination, an oval, elevated retinal lesion in the superior nasal quadrant was noted. Ultrasonography was performed, with a B-mode echography showing an oval, anechoic image and a standardized A-mode echography with a reflectivity spike higher than 98%, which was compatible with a retinal macrocyst. The patient refused surgical treatment for the retinal detachment and was followed for 14 months with stable visual acuity and no clinical or echographic changes.
Keywords: A-mode echography; B-mode echography; Retinal detachment; Retinal macrocyst.