SPR's Unknown Case

Welcome to the bi-weekly unknown pediatric radiology case page!

The current unknown case is at the top; the previous cases are shown below with their answers.

We will be displaying the current case as an unknown for approximately two weeks, and will be accepting your answers during that time period. Please submit only one answer per case.  Answer forms will only be accepted until the case has been switched and the diagnosis has been posted.

At the end of the year, the individual with the most correct answers will be honored with a prize (fellows and residents will be judged separately from attendings).

If you would like to submit an unknown case for consideration to be displayed in the future, please go to this online form and follow the instructions.

Unknown Cases 100 - 109

Unknown Case #105


32 week fetus with right upper quadrant abdominal cyst.

Author: Maria A. Calvo-Garcia, MD, Cincinnati Children's Hospital Medical Center.

Submit your answer to Case #105

Unknown Case #104


Extra-renal rhabdoid tumor

Unknown Case #103


Klippel Trenaunay Syndrome

Unknown Case #102

Pigmented villonodular synovitis

Unknown Case #101


 Fishtail deformity

Unknown Case #100

Agenesis of corpus callosum, subependymal gray matter heterotopias, cyst at foramen of Luschka, and coloboma.

Unknown Cases 90 - 99

Unknown Case #99

Congenital meniscoid articular disc of the TFCC

Unknown Case #98

Interstitial pregnancy






Unknown Case #97

Gastric duplication cyst

Unknown Case #96


Neonatal onset multisystem inflammatory disease

Unknown Case #95

 Gastric duplication cyst

Unknown Case #94

Primary Sclerosing Cholangitis

Unknown Case #93

Morgagni hernia


Unknown Case #92

Kaposiform hemangioendothelioma 



Unknown Case #91


Unknown Case #90

Lipoid pneumonia 


Unknown Cases 80 - 89

Unknown Case #89

Congenital pulmonary airway malformation (CPAM), Type 1

Unknown Case #88

Multiple Hepatic Hemangioma

Unknown Case #87

Treacher-Collins Syndrome


Unknown Case #86

Androgen Insensitivity Syndrome



Unknown Case #85

Retroperitoneal Teratoma

Unknown Case #84


Unknown Case #83

Paget Schroetter Syndrome

Unknown Case #82


Unknown Case #81

Tuberous Sclerosis

Unknown Case #80

Burkitt's lymphoma with intussusception

Unknown Cases 67 - 79

Unknown Case #79

Hepatic venoocclusive disease


Unknown Case #78

Cecal Volvulus

Unknown Case #77

CPAM - Hybrid congenital pulmonary malformation CCAM & sequestration


Unknown Case #76

Lemierre’s syndrome


Unknown Case #75

Gastric Bezoar

Unknown Case #74

Potter's Syndrome

Unknown Case #73

Amniotic Band Syndrome


Unknown Case #72




Unknown Case #71

IBD related arthropathy

Unknown Case #70

Choroid Plexus Papilloma


Unknown Case #69

Unknown Case #68

Walker-Warburg Syndrome

Unknown Case #67

Congenital absence of the pericardium

2012-2013 Case Winners


  • Joan Zawin (Attending category)
  • Shilpa Hegde (Fellow / Resident category)

Honorable Mention

Attending category

  • Greg Bates
  • Stephen Miller

Fellow / Resident category

  • Mark Bittman
  • Irene Sher

SPR's Unknown Case Team

  • Peter "Buzz" Marcovici, MD, Unknown Case Co-editor
  • Benjamin Taragin, MD, Web-editor and Unknown Case Co-editor
  • Mary B. Wyers, MD, Web-editor Emeritus