Publications by authors named "Federica Vegni"

The application of immunocytochemistry (ICC), as a diagnostic and predictive tool in the workup of head and neck lesions has followed the changes and progresses in the surgical pathology evaluation. The contribution of ICC has shown a significant role in the head and neck cytology, demonstrating as its contribution can support the diagnosis in many lesions. Furthermore, its role has been evolving as an important asjuvant tool in targeted therapies.

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  • Primary neuroendocrine neoplasms (NENs) of the breast are identified by specific neuroendocrine features and must be confirmed with positive immunohistochemical markers like Chromogranin and Synaptophysin.
  • * Diagnose breast NENs requires excluding the possibility of similar tumors originating from other body sites.
  • * The 2022 WHO classification has categorized breast NENs into well-differentiated neuroendocrine tumors (NETs) and aggressive neuroendocrine carcinomas (NECs), distinguishing them from typical invasive breast cancers.
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  • * In a study of 630 fine needle aspirations (FNAs) over ten years, 12.4% were found to be malignant, with 63.75% of those being metastases, including melanoma, SCC, renal, breast, lung, intestinal, and others.
  • * Fine needle aspiration is crucial for diagnosing metastatic lesions in the parotid glands and helps guide management, with immunocytochemistry (ICC) improving diagnostic accuracy.
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Cystic lesions of the anterior head and neck region are a challenging and frequent finding on cytological smears. The scant amount of cellular material in cystic slides poses the greatest difficulty to interpretation, so that frequently they are diagnosed as inadequate or with minimal cellular component. Despite the majority of cystic lesions being benign, a minor portion consist of malignant cystic entities.

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Background: The presurgical evaluation of cervical lymph nodes (CLNs) in the management of thyroid malignant lesions is crucial for the extent of surgery or detection of metastases. In these last decades, fine-needle aspiration cytology (FNAC) has been shown to have a central role in the detection of nodal thyroid metastases. It is adopted for the possibility of confirming suspected metastases either in the presurgical phase or in the follow-up of patients after thyroidectomy.

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Background: Thyroid metastases (TMs) are a rare entity, ranging between 0 and 24% in the autopsy series. In the assessment of the best management, the discrimination between a primary and a metastatic thyroid lesion is crucial. In this regard, fine needle aspiration cytology (FNAC) is likely to play a crucial role especially when ancillary techniques (i.

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  • * Common cystic entities include basal cell adenoma, oncocytoma, and several others, which can complicate diagnosis due to their presentation.
  • * Accurate diagnosis requires recognizing these lesions and considering various differential diagnoses, as they often yield hypocellular fluid in cytological analysis.
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Primary mucinous cystadenocarcinoma (MCA) is a rare breast carcinoma subtype showing overlapping histopathological features with mucinous cystadenocarcinoma of the ovary and pancreas. Current literature data suggest a favorable prognosis of breast MCAs despite its immunoprofile usually revealing lack of expression of estrogen receptor, progesterone receptor and HER-2 and high Ki67. As far as we know, only 36 cases have been reported in the literature to date.

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