FLUS


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  • Names

    • follicular lesion of undetermined significance

  • Clinical

    • Bathesda category 3
    • 2-29% of FNAs
    • tx: repeat FNA after 3-6 months

  • Cytology

    • mostly microfollicles or Hurthle cells but specimen too sparse to definitively call
    • atypia but lots of obscuring blood or artifact
    • Lots of Hurthle cells, but may be due to Hashimotos
    • focal marked atypia in an otherwise benign sample
    • atypical cyst lining cells
    • atypical lymphoid cells

  • Signout

    • focal architectural/cytologic atypia
    • sparsely cellular specimen
    • siginificant obscuring artifact
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