Alveolar soft part sarcoma (ASPS) is a rare, histologically distinctive soft-tissue sarcoma typically occurring in children and young adults. Although it displays a relatively indolent clinical course, the ultimate prognosis is poor and is often characterised by late metastases. ASPS is characterised by an unbalanced translocation: der(17)t(X:17)(p11;q25). This translocation causes the fusion of the TFE3 (transcription factor binding to IGHM enhancer 3) with a novel gene at 17q25, named ASPL. Translocation between chromosomes X and 17 is seen in all the tested cases, implicating transcriptional deregulation in the pathogenesis of this tumor.
Category
Cancer
Brite
Human diseases in ICD-11 classification [BR:br08403]
02 Neoplasms
Malignant neoplasms, except primary neoplasms of lymphoid, haematopoietic, central nervous system or related tissues
Malignant neoplasms, stated or presumed to be primary, of specified sites, except of lymphoid, haematopoietic, central nervous system or related tissues
Malignant mesenchymal neoplasms
2B5K Unspecified malignant soft tissue tumours or sarcomas of bone or articular cartilage of other or unspecified sites
H00051 Alveolar soft part sarcoma
