Radiology Key

Dermatofibrosarcoma Protuberans KEY FACTS Terminology • Low-grade spindle cell mesenchymal sarcoma of dermis and subcutis Imaging • Nearly always arising from dermis, then infiltrates subcutaneous tissue  Most commonly arises in trunk (~…

Hand Ultrasound KEY FACTS GENERAL CONSIDERATIONS • Common specific indications: Tenosynovitis, tendinosis, trigger finger, tendon rupture and other tendon disorders, joint inflammation, & ulnar collateral ligament (UCL) injury • Left common specific…

Abdominal Wall TERMINOLOGY Definitions • Abdomen: Region between diaphragm and pelvis GROSS ANATOMY Anatomic Boundaries of Anterior Abdominal Wall • Superiorly: Xiphoid process and costal cartilages of 7th-10th ribs • Inferiorly: Iliac crest,…

Fingers TERMINOLOGY Abbreviations • Extensor digitorum communis (EDC) • Extensor digiti minimi (EDM) • Interphalangeal (IP) joint • Interphalangeal (MCP) joint GROSS ANATOMY Muscles • Flexor aspect  Flexor digitorum superficialis – Origin: Common flexor tendon origin…

Femoral Vessels and Nerves IMAGING ANATOMY Femoral Vessels • Enter thigh deep to inguinal ligament midway between anterior superior iliac spine and pubic symphysis  External iliac vessels become common femoral vessels…

Axilla TERMINOLOGY Definitions • Fat-filled space between upper arm and lateral chest wall IMAGING ANATOMY Extent • Axilla is shaped like a pyramid • Consists of apex, base, and 4 walls  Apex – Bounded…

Groin TERMINOLOGY Abbreviations • Anterior superior iliac spine (ASIS) Definitions • Junctional region between thigh and trunk IMAGING ANATOMY Overview • Incorporates lower abdominal wall, inguinal canal, femoral triangle, and femoral adductor muscles…

Foot Vessels IMAGING ANATOMY Arteries • Dorsalis pedis artery  Dorsal artery of foot  Direct continuation of anterior tibial artery, changing name at ankle joint  Course and relations – Crosses superficial to talocrural…

Median Nerve TERMINOLOGY Abbreviations • Flexor digitorum profundus (FDP) • Flexor digitorum superficialis (FDS) • Flexor carpi ulnaris (FCU) • Flexor pollicis longus (FPL) • Pronator quadratus (PQ) • Palmaris longus (PL) GROSS ANATOMY Arm: Median…

Arm Vessels GROSS ANATOMY Arteries • Brachial artery • Continuation of axillary artery • Extends from lower border of teres major to neck of radius • Accompanies median nerve • Branches of brachial artery in…