Transposition of the Inferior Vena Cava
History: 40 year old with abdominal pain and diarrhea. Congenital anomalies of the inferior vena cava in about 0.2-0.5% of the population. Left sided IVC, which is this patient’s diagnosis, is seen in up to 0.5% of the population. Other anomalies besides transposition of the inferior vena cava include azygous continuation of the inferior vena cava, […]
Congenital Bronchial Atresia
History: 35 year old male with abnormal chest radiograph. The classic triad of bronchial atresia is a bronchocele, hyperlucent distal lung, and hypoperfusion of the distal lung segment. Bronchial atresia is on the diffential diagnosis for unilateral hyperlucent lung.
Mullerian Duct Anomalies: Uterine Didelphys
History: 18 year old female with pelvic pain. This is the classic appearance of uterine didelphys. Mullerian duct anomalies are classified according to the American Fertility Society system here. Occasionally a uterine horn can become obstructed and cause hematocolpos, or hematometrocolpos.
Basilar Invagination
History: 30 year old female with a history of bilateral sensorineural hearing loss. This is the appearance of basilar invagination, of which the differential includes Paget Disease, Osteomalacia, fibrous dysplasia, achondroplasia, rickets, cleidocranial dysplasia and osteogenesis imperfecta. The diagnosis in this case was osteogenesis imperfecta, which also can cause hearing loss.
Cochlear Otosclerosis
History: 30 year old female with a history of hearing loss. The term for this finding is cochlear otosclerosis. Synonyms include cochlear otospongiosis, retrofenestral otosclerosis, and Beethoven Malady. The diagnosis in this case was osteogenesis imperfecta, however, paget disease, fibrous dysplasia, and otosyphillis can cause these findings.