Costal osteochondroma is an uncommon primary benign tumor. Thorough radiological and pathological examinations should be performed to avoid misdiagnosis. Herein. we describe a case of a surgically resected costal osteochondroma in 23-year-old man. https://www.ealisboa.com/quick-buy-Acer-shirasawanum-Green-Snowflake-Weeping-Full-Moon-Japanese-Maple-great-pick/