Metastatic Rhabdomyosarcoma Definition Lymph node metastases of rhabdomyosarcoma. Epidemiology Rhabdomyosarcoma is the most common soft tissue sarcoma occurring in children under 15 years old (1,2). Rhabdomyosarcoma also occurs in young…
Metastatic Ewing Sarcoma/Peripheral Neuroectodermal Tumor Definition Lymph node metastases of Ewing sarcoma/peripheral neuroectodermal tumor (ES/PNET). Historical Introduction James Ewing described the bone neoplasm subsequently named after him in a case…
Metastatic Neuroblastoma Definition Neuroblastoma metastatic to lymph nodes. Epidemiology Neuroblastoma (including ganglioneuroblastoma, discussed later) accounts for 7% to 10% of childhood cancers and is the most common solid tumor of…
Metastatic Neuroendocrine Tumors Definition Lymph node metastases of neuroendocrine tumors. Pathogenesis Neuroendocrine tumors encompass a broad spectrum of neoplasms ranging from well-differentiated neoplasms, also known as carcinoid tumors (from the…
Metastatic Mucinous Adenocarcinoma Definition Lymph node metastases of carcinoma associated with abundant mucin that may be intra- or extracellular. Synonym The term metastatic signet ring cell adenocarcinoma is used for…
Metastatic Prostatic Carcinoma Definition Lymph node metastases of prostatic adenocarcinoma. Epidemiology In the United States, prostatic carcinoma is the most commonly diagnosed internal malignant neoplasm in men. For the year…
Metastatic Seminoma Definition Lymph node metastases of seminoma. Pathogenesis Testicular cancers are uncommon. In 2007, the estimated number of testicular cancers was 7,920 cases (1). Approximately 90% of testicular cancers…
Metastatic Papillary Thyroid Carcinoma Definition Lymph node metastases of papillary thyroid carcinoma. Pathogenesis Thyroid carcinoma is a relatively uncommon tumor that only rarely causes death. In the United States, the…
Metastatic Renal Cell Carcinoma Definition Lymph node metastases of renal cell carcinoma (RCC). Pathogenesis Kidney cancers (including the renal pelvis) account for approximately 3% of all adult malignancies. In the…
Metastatic Breast Carcinoma Definition Mammary or breast carcinoma metastatic to lymph nodes. Epidemiology Breast cancer, third only to prostate and lung cancer in frequency in the United States, is the…
