Massive Renal Cyst Presenting With Chest Pain and Gastrointestinal Symptoms.

Renal cysts are common, typically asymptomatic, fluid-filled sacs that rarely require intervention. Nevertheless, in rare cases, large symptomatic cysts can cause significant morbidity. We report the case of an 87-year-old man presenting to the emergency department with right chest wall pain following a ground-level fall, accompanied by worsening nausea, vomiting, and decreased oral intake over 6-7 months. A computed tomography scan revealed a massive right-sided renal cyst (18.6 cm x 11.5 cm x 6 cm) causing displacement of abdominal contents through mass effect. Following consultation with Urology and Interventional Radiology, percutaneous aspiration was performed, resulting in symptom resolution. This case underscores the rare presentation of a massive renal cyst with chest pain and gastrointestinal symptoms, highlighting the need to consider this diagnosis in similar clinical scenarios and the efficacy of percutaneous aspiration as a minimally invasive treatment.