Supernumerary intrathoracic rib

Four thoracic cavity compartments caused by bilateral bifid intrathoracic rib

“…The intrathoracic rib is a rare anomaly, usually incidental finding and seldom necessary intervention due to the normally benign, asymptomatic presentation 1 2. The intrathoracic rib occurs more frequently singly and unilaterally 3. To our best knowledge, bilateral bifid intrathoracic rib with kyphoscoliosis had not been reported in the previous literature.…”

Recognition of a rare intrathoracic rib with computed tomography: a case report

“…This abnormality can be seen throughout a range of ages from 3 to 79 years, is independent of sex, more common unilateral, generally on the right side and incline to affect only one rib. Intrathoracic ribs usually origin from the posterior and inferior aspect of the normal rib or vertebral body [12]. …”

“…It is usually silent, and discovered accidentally; its understanding can prevent mistake with other of thoracic diseases like as a lung consolidation, pleural lesion, peripheral lung parenchymal lesions, and bony lesion during imaging diagnostic techniques. It may arise from a rib or a vertebra, and sometimes it may be associated with vertebral anomalies and are usually unilateral [1 2]. …”

A Unique Case of Left Second Supernumerary and Left Third Bifid Intrathoracic Ribs with Block Vertebrae and Hypoplastic Left Lung

“…IR is a very rare congenital anomaly; only 50 cases of IR have been reported till date in the literature after Lutz first described it in 1947 [ 1 – 9 ]. A third of these cases have been described in the pediatric population [ 2 ].…”

“…It may originate from a vertebra or a rib, and sometimes it may be associated with vertebral anomalies [ 1 ]. It is more commonly present on the right side and between the third rib through the eighth rib, and no gender predilection is reported [ 2 ]. Only 50 cases have been reported till date in the literature [ 1 – 9 ].…”