Hyalinizing Clear Cell Carcinoma as a Secondary Malignancy in a Childhood Survivor of Rhabdomyosarcoma
Diagnosis of secondary malignancies began with the increasing survival in childhood cancer. Children treated for acute lymphoblastic leukemia (ALL) have an increased risk for developing mucoepidermoid carcinoma (MEC) of the parotid gland. The latent period ranges from 5 to 16 years. A 2 6/12-year-old girl was treated for pro-B ALL. Treatment included multidrug chemotherapy, prophylactic intrathecal methotrexate, and cranial radiotherapy. MEC of the left parotid gland was diagnosed at the age of 8 years, 3 years after completing treatment. She was treated with multiple surgery and radiotherapy. The authors aimed to emphasize the need for concern about second cancers of the parotid gland in children treated for ALL.