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Clinical Presentation. The most common site for neuroendocrine (carcinoid) tumors is the appendix. In a single-institution

Gastrointestinal stromal tumors (GIST) are the most common mesenchymal neoplasms of the gastrointestinal tract in adults.[ 1]

Melanoma is a disease in which malignant (cancer) cells form in melanocytes (cells that color the skin). The skin is the body's

Skin cancer is a disease in which malignant (cancer) cells form in the tissues of the skin. The skin is the body's largest organ

Intraocular melanoma is a disease in which malignant (cancer) cells form in the tissues of the eye. Intraocular melanoma begins in

Childhood chordoma is a very rare type of bone cancer that begins in cells left over from early development that helped form disks

Carcinoma of unknown primary is a disease in which malignant (cancer) cells are found in the body but the place the cancer began

Urothelial bladder neoplasms are extremely rare in children. The most common presenting symptom of bladder cancer in children is

Testicular tumors are very rare in young boys and account for 1% to 2% of all childhood tumors.[ 1, 2] The most common testicular

Most ovarian masses in children are not malignant.[ 1] The most common malignant neoplasms are germ cell tumors, followed by