Radiation Induced Multiple Skin Neoplasms Following Craniospinal Irradiation for Medulloblastoma. A Case Report
Unusual clinical course, Challenging differential diagnosis, Unusual or unexpected effect of treatment, Diagnostic / therapeutic accidents
Ahmed Amer Osman Ali, Yasser Bayoumi, Ali Balbaid, Yasser Orz, Wafa AlShakweer, Mohamed Hussen Eltawel, Mutahir Tunio
Department of Radiation Oncology, King Fahad Medical City, Riyadh, Saudi Arabia
Am J Case Rep 2020; 21:e917694
Available online: 2020-10-26
Following craniospinal irradiation in children with medulloblastoma, secondary neoplasms are among the most serious long-term sequelae that include leukemias and solid tumors of the urinary or digestive tracts, thyroid, skin, and central nervous system. Furthermore, in children with Gorlin syndrome following craniospinal irradiation for medulloblastoma, there is a rising incidence of skin and non-skin malignancies.
CASE REPORT: The patient in the present study was a 19-year-old female who was treated with craniospinal irradiation and chemotherapy following gross total resection (GTR) for medulloblastoma at the age of 4 years. Fifteen years later, she developed a primary adnexal tumor at the medial aspect of her left thigh, glomangioma at the skin of her upper abdomen, dermatofibrosarcoma protruberans at the skin of her upper back, and Kaposiform hemangioendothelioma of the upper abdomen. All these tumors were successfully managed with radical resection without further adjuvant treatment.
CONCLUSIONS: Metachronous of development of 4 histopathologically different skin tumors following craniospinal irradiation for medulloblastoma in long-term survivors has not previously been reported. The present case warrants a detailed dermatological periodic inspection in such patients.
Keywords: craniospinal irradiation, Medulloblastoma, Skin Neoplasms, Survivors