Adolescent boys with moth-eaten bones are most likely diagnosed with which type of sarcoma?

Adolescent boys with moth-eaten bones are most likely diagnosed with Ewing's Sarcoma due to the characteristic imaging findings associated with this type of cancer. Ewing's Sarcoma is a primitive neuroectodermal tumor that predominantly affects the long bones and pelvis in children and adolescents. The term "moth-eaten" refers to the appearance of the bone on radiographs, which shows a permeative or destructive pattern indicative of the aggressive nature of the tumor.

Ewing's Sarcoma is also associated with pain, swelling, and sometimes systemic symptoms like fever, which further support its diagnosis. This particular imaging feature and the demographic profile of affected individuals align closely with the clinical presentation of Ewing's Sarcoma, making it the most likely diagnosis in this case.

The other types of sarcoma listed have different characteristics and typical presentations. For instance, Osteosarcoma often presents with a sunburst pattern of periosteal reaction rather than a moth-eaten appearance. Chondrosarcoma typically affects older patients and shows more defined bone alteration. Rhabdomyosarcoma is a soft tissue sarcoma and does not typically involve bone in the same way, focusing more on soft tissue masses. Thus, when considering an adolescent male presenting