Pelvic rib is a rare developmental abnormality, which is usually asymptomatic and diagnosed coincidentally. It develops in the soft tissue adjacent to pelvis and typically appears as a rib or phalanx like bone structure. Pelvic rib is mostly located at ilium, sacrum, coccyx and anterior abdominal wall. It may typically have pseudoarticulations. The etiology of the pelvic rib has not been established yet. Radiological findings are critical in the differential diagnosis. Myositis ossificans and avulsion fractures should be considered first particularly in the patients with the history of trauma. In this article, we present a 28-yearold male patient who was admitted to the clinic with the complaint of left hip pain for two years and functional disability during long-time activities. The history of the patient revealed that he was stabbed with a knife at the level of left hip five years ago. Following radiological examination, bone structure was diagnosed with pelvic rib without pseudoarticulations. It was surgically removed due to its symptomatic nature. The diagnosis based on radiological examination was confirmed by histopathological examination. During follow-up, the patient was free of hip pain. Only a limited number of cases with pelvic rib have been described in the literature. As the majority of them were asymptomatic, excision was rarely performed. As a result, the diagnosis was not able to be confirmed by histopathological examination. Also, in this case, the absence of pseudoarticulations made this rare case more unique.