E1782. Growing Pains: Eponymous Pediatric Osteochondroses
  1. Lawrence Wang; Atlantic Health System - Morristown Medical Center
  2. Paul Schulze; Atlantic Health System - Morristown Medical Center
  3. Frank Chen; Atlantic Health System - Morristown Medical Center
Osteochondroses are a group of diseases where bone growth is affected at various ossification centers throughout the immature skeleton. This group of diseases is often difficult to distinguish given the eponymous nature of their diagnosis. Furthermore, the exact etiology is not well understood, though contributing factors include, repetitive trauma, vascular abnormalities, genetics, hormonal imbalances, and mechanical factors. This exhibit serves to review the epidemiology, theorized pathophysiology, typical imaging findings, and treatment options for common pediatric osteochondroses.

Educational Goals / Teaching Points
The cases will be presented in a quiz format with annotated original radiographic images and discussion of each osteochondroses including epidemiology, theorized pathophysiology, and treatment options. Highlighting each pathology in a single exhibit will strive to aid in remembering the eponyms of each osteochondrosis.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
The osteochondroses that will be discussed include Legg-Calve-Perthes, Osgood Schlatter, Sinding Larssen Johanssen, Scheuermann, Kienbock, Kohler, Frieberg, and Sever. Findings may be sutble on plain radiography. For instance, a femoral head defect with lucent and sclerotic changes in a young child would be seen with Legg-Calve-Perthes. On the other hand, plain radiographs for Sever disease are typically normal. MR is the best imaging modality for osteochondroses with the ability to detect bone marrow changes.

Osteochondroses reflect an array of eponymous diseases involving the ossification centers of the immature skeleton. It is important for radiologists to distinguish the eponyms of the osteochondroses highlighted in this presentation in order to avoid misdiagnosis.