Solution to Unknown Case #15 – Osteogenesis Imperfecta and the Differential Diagnosis of Gracile Diaphyses
History: 17 year old female. History withheld. This is a case of osteogenesis imperfecta. Osteogenesis imperfecta is a genetic defect in forming type 1 collagen. There are multiple subtypes of osteogenesis imperfecta, which are divided according to the Silence classificaiton system as follows: Type 1 – Autosomal Dominant, blue sclerae, mildest form (often called osteogenesis […]
Solution to Unknown Case #14 – Iliac Horn Syndrome or Nail Patella Syndrome or Hereditary Osteo-Onychodysplasia
History: 10 year old female with this Aunt Minnie finding on scout KUB for a retrograde voiding cystourethrogram. This is a case of Iliac Horn Syndrome, also called Nail Patella Syndrome or Hereditary Osteo-Onychodysplasia. The finding in the image above of iliac horns is pathognomonic (an aunt minnie for Iliac Horn syndrome). The reason why […]
Unknown Case # 15 – Pediatric Lower Extremity Radiograph
History: 17 year old female. History withheld. What is your differential diagnosis in this 17 year old female?
Unknown Case # 14 – Pediatric Pelvis Radiograph
History: 10 year old female with this Aunt Minnie finding on scout KUB for a retrograde voiding cystourethrogram. What is your diagnosis? What is this aunt minnie finding called? Share below!
Solution to Unknown Case # 13 – Fibrous Dsyplasia of the Skull Base
History: 10 year old girl with headaches and facial deformity. This is a case of fibrous dysplasia of the skull base. Fibrous dysplasia is a congenital bone disease resulting from abnormal osteoblast differentiation which results in the replacement of normal bone with a mixture of fibrous tissue and immature woven bone. It usually occurs in […]
Unknown Case # 13 – Pediatric Head CT
History: 10 year old female with headaches and facial deformity. What is your differential diagnosis for this 10 year old girl with headaches?
Solution to Unknown Case # 12 – Avulsion Fracture of the Anterior Superior Iliac Spine
History: Adolescent with hip pain. This is an avulsion fracture of the left anterior superior iliac spine, which is due to the sartorius muscle pulling off a fragment of bone at the apophysis, which is a growth center at the tendon attachment to bone. Other common areas of seeing avulsion fractures in pediatric patients include […]
Solution to Unknown Case # 11 – Differential Diagnosis of a Cystic Pediatric Neck Mass
History: 5 year old male with a midline neck mass. This is the appearance of a lymphatic malformation, which use to be termed “cystic hygroma.” A lymphatic malformation is a congenital malformation of lymph channels which collect into embryonic lymphatic sacs. They can virtually be found in any head and neck location, and are characteristically […]
Cervical Ribs and Thoracic Outlet Syndrome
History: 10 year old female with neck pain. This is an example of cervical ribs, which are seen in less than 1% of the population. Cervical ribs are on the differential diagnosis for neck pain, and can be a cause of thoracic outlet syndrome. The thoracic outlet contains multiple spaces including the subcoracoid tunnel, costoclavicular […]
Unknown Case #12 – Pediatric Pelvis Radiograph
History: Adolescent with hip pain. What is your diagnosis? Comment and share below!