title: Fine-needle aspiration biopsy diagnosis of rhabdomyosarcoma: cytologic, histologic, and ultrastructural correlations.
abstract: A series of 15 cases of rhabdomyosarcoma diagnosed by fine-needle aspiration biopsy (FNAB) and confirmed by histopathology is reviewed. Cytologically, the tumors were composed of a variable mixture of cells, which according to the degree of differentiation were categorized as early, intermediate, or late rhabdomyoblasts. Histologically, the tumors were divided into embryonal 9, monomorphic round cell 4, and alveolar rhabdomyosarcoma 2. Comparison of histological and cytological features revealed that embryonal types were composed mainly of early rhabdomyoblasts. Recognition of these patterns may be helpful in FNAB diagnosis of rhabdomyosarcoma.
authors.affiliation: Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital, Riyadh, Saudi Arabia.
authors.forename: M
authors.initials: M
authors.lastname: Akhtar
authors.forename: M A
authors.initials: MA
authors.lastname: Ali
authors.forename: M
authors.initials: M
authors.lastname: Bakry
authors.forename: M
authors.initials: M
authors.lastname: Hug
authors.forename: K
authors.initials: K
authors.lastname: Sackey
mesh_terms: D000293:Adolescent; D000328:Adult; D001707:Biopsy, Needle; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012208:Rhabdomyosarcoma / Q000473:pathology* / Q000648:ultrastructure