This orthopaedic anatomical diagram illustrates the Chiron classification (2004) for femoral head fractures, shown across five categorized types (Type I to Type V). Each type is presented using a dry bone model of the proximal femur from two perspectives: a lateral/oblique view and a frontal view of the femoral head. Fracture lines are demarcated by solid black lines to indicate the morphology and size of the fracture fragments. Type I displays small osteochondral fragments at the superior-lateral aspect. Type II shows a 1/4 head fragment on the anterior-superior surface. Type III demonstrates a 1/3 head fragment extending from superior to posterior. Type IV depicts a vertical fracture dividing approximately 1/2 of the femoral head. Type V illustrates cranial cartilage impaction with multiple intersecting lines across the superior articular surface. The classification is clinically relevant for orthopedic surgeons and residents for determining the severity of femoral head trauma and informing surgical decisions, such as fragment fixation versus excision based on size and location.

Educational diagram illustrating the Judet-Letournel classification of acetabular fractures using anatomical specimens of the hemipelvis. The visual is divided into two rows: 'Elementary' and 'Associated' fracture types. White lines superimposed on the specimens delineate specific fracture patterns. The 'Elementary' row features five simple patterns: Anterior column (vertical line through the pelvic brim), Anterior wall (localized articular segment), Posterior column (ischiadic notch through obturator foramen), Posterior wall (localized posterior rim), and Transverse (horizontal line bisecting the acetabulum). The 'Associated' row demonstrates complex configurations: Both column, Transverse plus posterior wall, Posterior column plus posterior wall, Anterior column with posterior hemitransverse (a vertical anterior column line joined by a horizontal posterior component), and T-type (a transverse fracture with an additional vertical stem extending through the obturator foramen). This orthopedic diagram serves as a clinical reference for orthopedic surgeons and medical students to understand pelvic trauma morphology and surgical planning.

This educational infographic details the Echinococcus multilocularis Ulm Classification for Computed Tomography (EMUC-CT), a standardized system for evaluating hepatic Alveolar Echinococcosis (AE). The diagram is divided into two sections: Primary Morphology and Patterns of Calcification. The left section illustrates five morphological types (I-V) using axial CT cross-sections of the liver. Type I (diffuse infiltrating) and Type II (primarily circumscribed, tumor-like) are sub-categorized by the presence or absence of a cystoid portion. Type III (primarily cystoid) distinguishes between intermediate and widespread involvement, further categorized by solid peripheral portions. Type IV displays small-cystoid, metastasis-like lesions, while Type V represents mainly calcified, inactive lesions. The right panel illustrates six distinct calcification patterns within hepatic lesions: feathery (branching), focal (isolated spots), diffuse (widespread), edge-weighted (peripheral), and central. The classification system is designed to improve diagnostic accuracy and clinical assessment of disease activity in patients with Alveolar Echinococcosis.