Lymph Node Abnormality
Lymph Node Abnormality KEY FACTS Imaging • US Accurate at differentiating between benign and malignant nodes More accurate than CT and MR provided that nodes are accessible to US assessment Can…
Abdominal Wall Mass
Abdominal Wall Mass DIFFERENTIAL DIAGNOSIS Common • Subcutaneous Lipoma • Incisional Hernia • Linea Alba Hernia • Groin Hernia Less Common • Spigelian Hernia • Lumbar Hernia • Paraumbilical Hernia • Umbilical Hernia • Endometrioma • Undescended Testis • Enlarged Lymph…
Hypoechoic Muscle Mass
Hypoechoic Muscle Mass DIFFERENTIAL DIAGNOSIS Common • Hematoma • Muscle Tear • Nerve Sheath Tumor Less Common • Soft Tissue Sarcoma • Myxoma • Fibromatosis • Abscess • Metastases • Lymphangioma • Intramuscular Extension of Baker Cyst • Vascular Malformation • Local…
Postoperative Infection
Postoperative Infection KEY FACTS Terminology • Infection at surgical site within 1 month of surgery or within 1 year of prosthetic implantation Imaging • Mild soft tissue edema, fluid, & hyperemia are…
Bone Surface Lesion
Bone Surface Lesion DIFFERENTIAL DIAGNOSIS Common • Osteochondroma • Other Benign Bone Tumor • Malignant Bone Tumor Less Common • Metastases • Bone Tumor Recurrence • Acute Osteomyelitis • Chronic Osteomyelitis • Fracture • Orthopedic Implant • Cortical Tug Lesion…
Fascial Lesion
Fascial Lesion DIFFERENTIAL DIAGNOSIS Common • Plantar Fasciitis • Plantar Fibromatosis Less Common • Plantar Fascial Tear • Enthesopathic Fasciitis • Investing Fascial Tear • Nodular Fasciitis • Infective Fasciitis • Necrotizing Fasciitis • Eosinophilic Fasciitis • Dupuytren Disease • Tumors…
Hematoma/Seroma
Hematoma/Seroma KEY FACTS Imaging • Hematoma: Acute Quite well-defined heterogeneous mass ± echogenic pseudosolid appearance Multilaminated whorled appearance Anechoic cystic areas Echogenic foci due to gas locules Surrounding soft tissue edema…
Foot Ultrasound
Foot Ultrasound KEY FACTS GENERAL CONSIDERATIONS • Common specific indications: Suspected plantar fasciitis and fibroma, Morton neuroma, ganglia, osteoarthritis, gout, and other joint disorders • Less common specific indications: Suspected ligament injury,…
Hyperechoic Muscle Mass
Hyperechoic Muscle Mass DIFFERENTIAL DIAGNOSIS Common • Intermuscular Lipoma • Intramuscular Lipoma • Muscle Edema • Vascular Malformation • Hematoma Less Common • Foreign Body • Soft Tissue Sarcoma • Muscle Metastases • Local Recurrence • Fibromatosis • Peripheral Nerve Sheath…
