title: Occult sporadic medullary microcarcinoma with lymph node metastases.
abstract: A sporadic form of medullary occult microcarcinoma was cytologically diagnosed, by fine-needle aspiration biopsy (FNAB), on metastatic cervical lymph nodes. The cytologic specimens were partially smeared and partially zinc-formalin-fixed, so that a microinclusion clot for immunohistochemical studies would be possible. The reactivity to calcitonin of neoplastic cells obtained from metastatic cervical lymph nodes supported the search for a thyroid tumor, which only a careful echographic study revealed. Under sonographic guidance, FNAB on a 0.5-cm hypoechoid nodule was performed. The smears were diagnostic of medullary carcinoma. A total thyroidectomy with node dissection was made. Diagn. Cytopathol. 1999;21:203-206.
authors.affiliation: Department of Pathology, Legnano General Hospital, Legnano (Milan), Italy.
authors.forename: M
authors.initials: M
authors.lastname: Sironi
authors.forename: L
authors.initials: L
authors.lastname: Cozzi
authors.forename: R
authors.initials: R
authors.lastname: Pareschi
authors.forename: G L
authors.initials: GL
authors.lastname: Spreafico
authors.forename: A
authors.initials: A
authors.lastname: Assi
mesh_terms: D001707:Biopsy, Needle; D018276:Carcinoma, Medullary / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009333:Neck; D013964:Thyroid Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013965:Thyroidectomy; D014463:Ultrasonography