Evaluation of Lymph Nodes in Adenomegaly Syndrome

Introduction to Lymph Node Evaluation

The American College of Radiology recommends that lymph nodes in all potentially affected anatomical regions should be studied in adenomegaly syndrome, with special attention to representative lymph node chains, including the mediastinum and retroperitoneum if involved 1, 2

The National Comprehensive Cancer Network recommends a comprehensive clinical evaluation to determine if adenomegaly is localized or generalized, and to detect adenopathy in all accessible regions, including cervical, supraclavicular, axillary, epitrochlear, and inguinal 3

The American College of Radiology recommends careful evaluation of cervical and supraclavicular lymph nodes, especially in patients with suspected head and neck cancer 4
The European Society for Medical Oncology notes that supraclavicular adenopathy may indicate metastatic malignancy of thoracic or abdominal origin 5

The National Comprehensive Cancer Network recommends a comprehensive clinical evaluation for axillary masses to detect other sites of adenopathy and possible non-mammary etiologies 3
The National Comprehensive Cancer Network also notes that localized axillary masses are more frequently related to benign disorders than malignancy, but when cancer is identified in axillary lymph nodes, breast cancer is the most common cause 3

The National Comprehensive Cancer Network recommends consideration of pelvic lymph node involvement in patients with metastatic melanoma to inguinal lymph nodes, especially if more than 3 superficial lymph nodes are involved, or if the lymph nodes are clinically positive or the Cloquet's node is positive 6

The American College of Radiology and the National Comprehensive Cancer Network recommend PET-CT for staging of FDG-avid lymphomas, while CT is preferred for other lymphomas 1, 2, 7
The American College of Radiology notes that focal uptake in lymph node and extranodal sites compatible with lymphoma on PET-CT is considered lymphomatous involvement 1, 7

The European Society for Medical Oncology and the National Comprehensive Cancer Network recommend a specific evaluation for cancer of unknown origin with adenopathy, based on the location of the affected lymph nodes 5, 8
The National Comprehensive Cancer Network recommends breast MRI for axillary adenopathy with suspected mammary origin 3
The National Comprehensive Cancer Network also recommends consideration of head and neck evaluation for cervical adenopathy, according to specific guidelines 8