Pediatric Oncology Imaging — Flashcards

Flashcard 1: _____ sign which is seen in the duplex kidney

Answer: Drooping lily

Flashcard 2: Wilm's tumor shows _____ calcification in contrast-enhanced CT

Answer: peripheral

Flashcard 3: X-rays of the skull reveal enlarged sella and intersutural (wormian) bones in children with Congenital _____

Answer: hypothyroidism

Flashcard 4: _____ is the investigation of choice for retinoblastoma

Answer: MRI of the orbit + brain

Flashcard 5: _____, fraying, and splaying are the metaphyseal radiological features seen in rickets.

Answer: Cupping

Flashcard 6: Localized bilateral _____ destruction of the medial proximal tibia is called as Wimberger's sign and is seen in early congenital syphilis.

Answer: metaphyseal

Flashcard 7: What is a pathognomonic skeletal feature of child abuse on X-ray?

Answer: Sub-epiphyseal micro-fracture (Classic Metaphyseal Lesion)

Extra: The Classic Metaphyseal Lesion (CML), also known as a corner or bucket-handle fracture, is highly specific for non-accidental injury (child abuse). It represents a series of micro-fractures across the primary spongiosa of the metaphysis. While MRI can detect bone marrow edema, these lesions are primarily identified on a skeletal survey (X-ray).

Flashcard 8: What is the imaging modality of choice for diagnosing ventricular dilatation in neonates?_____

Answer: Neurosonogram

Flashcard 9: Target sign on USG Abdomen is suggestive of _____.

Answer: intussusception

Flashcard 10: Contrast enema shows an empty microcolon in case of _____

Answer: Meconium ileus