"Double imaging" for the diagnostic work-up of alveolar soft part sarcoma with Tc-99m MIBI

Primary Intracerebral Alveolar Soft Part Sarcoma in an 11-Year-Old Girl: Case Report and Review of the Literature

Alveolar soft part sarcoma (ASPS), a rarely observed tumor, is a soft tissue sarcoma with an unidentified cell origin. It constitutes 0.5–1.0% of all soft tissue sarcomas. It may appear in various parts of the body, but mostly observed in the trunk and the extremities. It has a high metastasis potential. To the best of our knowledge, only three cases of primary intracranial ASPS without a demonstrable lesion elsewhere is encountered. An 11-year-old girl was operated because of fronto-parietal mass lesion by craniotomy. Pathological examination revealed ASPS and no primary focus was detected. In spite of radiotherapy and chemotherapy as an adjuvant therapy, after 45 months she had a second operation for recurrence of the tumor. Since it is possible to observe metastases in late phases, up to 30 years, the patients must be followed up for a long period. Although radiotherapy and chemotherapy followed by surgery is the most accepted treatment strategy, the prognosis is still poor.

Primary alveolar soft part sarcoma of the scapula

Alveolar soft part sarcoma (ASPS) is an unusual soft tissue malignity, occurring in less than 1% of sarcomas and typically found in the head and neck tissues in children or, in adults, in the deep soft tissues of the lower extremities. In this report, we present a 33-year-old male with primary ASPS in the right scapular bone and discuss the radiologic features of this tumor in the context of the current literature.