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Misinterpretation of normal cellular elements in fine-needle aspiration biopsy specimens: observations from the College of American Pathologists Interlaboratory Comparaison Program in Non Gynecologic Cytopathology.
The patient's serum calcitonin level was elevated, however, and a second fine-needle aspiration biopsy sample showed immunoreactivity for calcitonin.
Epithelial atypia in gynecomastia induced by chemotherapeutic drugs: a possible pitfall in fine needle aspiration biopsy.
Findings on fine-needle aspiration biopsy were consistent with a lipoma, but contrast-enhanced computed tomography (CT) of the neck identified a heterogenous 4 x 5-cm enhancing mass deep to an overlying lipomatous component that measured approximately 10 x 6 cm in the right lower jugular chain (figure 1).
Fine-needle aspiration biopsy of left cervical lymph node showed multiple intracellular, as well as extracellular, L-D bodies in a polymorphous background.
We report the case of a man with a parotid mass that exhibited features consistent with an inflammatory process on fine-needle aspiration biopsy.
Fine-needle aspiration biopsy and histologic features with review of the literature are presented, and the differential diagnosis for pericolic cystic masses is discussed in detail.
We conducted a retrospective study to compare the sensitivity and specificity of traditional palpation-guided fine-needle aspiration biopsy (FNAB) performed by clinicians and pathologists with that of image-guided FNAB performed by radiologists for the evaluation of thyroid nodules.
Increasing acceptance of aspiration biopsy for diagnosis of adult thyroid nodules has also encouraged the use of fine-needle aspiration (FNA) in diagnosis and management of pediatric thyroid nodules in recent years.