Rafic Beydoun

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The aim of the present study was to explore the association between paraganglioma-like adenomas of the thyroid (PLAT) and chronic lymphocytic thyroiditis (CLT) or Hashimoto's thyroiditis, and to discuss its possible relationship to papillary thyroid carcinoma. Six cases were analyzed by standard histopathological and immunohistochemical techniques. All 6(More)
Granulosa cell tumors (GCTs) comprise 2% to 5% of ovarian neoplasms, with unpredictable patterns of recurrence. The HER family, GATA4, and SMAD3 genes are reportedly involved in GCT proliferation and apoptosis and may serve as new predictors of recurrence. The aim of the study was to evaluate novel predictors of recurrence in GCT from a large single(More)
OBJECTIVE Mucinous cystadenocarcinoma of appendix is a rare entity. Differentiating mucinous cystadenocarcinoma from mucinous cystadenoma is very challenging and depends on establishing the presence of malignant cells in the appendix wall. The invasion may be very difficult to assess in some cases, especially in early stages of the disease, which could have(More)
Paratesticular liposarcomas are relatively common sarcomas in the paratesticular region, however, the myxoid variant; myxoid liposarcoma (MLS) is considered very rare. MLS peaks around the fourth-fifth decade. Herein, we describe a case of paratesticular MLS occurring in a 19-year-old African American male who underwent resection of a slowly growing(More)
The use of fine needle aspiration biopsy (FNAB) to diagnose lung tumors has been very successful in regard to epithelial neoplasms. However, there is much less experience in diagnosing primary and metastatic sarcomas of the lung with this technique. We describe an unusual case of malignant schwannoma metastatic to the lung diagnosed by FNAB in a young(More)
Fibroepithelial lesions (FEL) of the breast are notoriously difficult to classify on core needle biopsies. The goal of this study was to evaluate interobserver variability and accuracy of subclassifying difficult FELs into fibroadenoma (FA) and phyllodes tumors (PTs). We identified 50 breast core needle biopsies, initially diagnosed generically as FEL, with(More)
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