Fine needle aspiration cytology of plexiform fibrohistiocytic tumor. A case report.
BACKGROUND
Plexiform fibrohistiocytic tumors are rare lesions of proposed myofibroblastic origin occurring primarily in infants and children. While the histologic, immunohistochemical and ultrastructural findings have been well described, cytologic description has been limited.


METHODS
An 8-month-old, male infant presented with a posterior chest wall mass and decreased use of his left arm. Fine needle aspiration biopsy showed a spectrum of plump fibroblastic spindle cells and histiocytelike cells within a finely granular myxoid background. Osteoclastlike giant cells were also noted.


CONCLUSIONS
We report here the cytologic findings of a plexiform fibrohistiocytic tumor from fine needle aspiration biopsy studied using Papanicolaou, Ultrafast Papanicolaou and Diff-Quik stain, with the cytologic differential diagnosis of other spindled and histiocytelike tumors.
Redlich
G
G
Department of Pathology, University of New Mexico School of Medicine, Albuquerque 87131, USA.
Bocklage
T
T
Joste
N
N
D001707:Biopsy, Needle / Q000379:methods; D002467:Cell Nucleus / Q000473:pathology; D002869:Chromosome Aberrations; D003593:Cytoplasm / Q000473:pathology; D018219:Histiocytoma, Benign Fibrous / Q000235:genetics / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D007223:Infant; D008297:Male; D009364:Neoplasm Recurrence, Local; D013899:Thoracic Neoplasms / Q000235:genetics / Q000473:pathology* / Q000601:surgery