Background: There are many causes of mediastinal and hilar lymphadenopathy, such as neoplasms, granulomatous diseases, infections and reactive hyperplasia. Nowadays, the popularity of endobronchial ultrasound-guided transbronchial needle aspiration (EBUSTBNA) is increasing in the diagnosis of mediastinal and hilar lymphadenopathy. We aimed to investigate the diagnostic value of EBUS-TBNA in pat...

Parotid malignancy may occur as a primary neoplasm of the salivary tissue or as metastatic involvement of the parotid lymph nodes. Primary tumors of squamous cell carcinoma and malignant melanoma involving the skin of the head and neck have the potential to spread to lymph nodes of the parotid gland. Metastatic malignant melanoma to the back was exceptionally rare and no such reports have been ...

The influence of interferon (IFN) on cellular proliferation, blast transformation, and differentiation was studied in lymph node cells from 17 patients with B-cell lymphomas, one patient with T-cell lymphoma, and eight patients with enlarged, non-malignant lymph nodes. The effects of IFN on lymph node cells were compared with effects on mononuclear blood cells from chronic lymphocytic leukemia ...

background: this study aims to demonstrate the frequency of malignant breast cancer (bc) according to pathologic findings in birjand during 2011-2013 years. methods: for this cross-sectional study, the sample consisted of pathologic records from 229 breast biopsies of two hospitals in birjand. results: most of the biopsies in women were malignant cases which nearly 90% of them were detected aft...

Myxedema is a rare, cutaneous complication of autoimmune thyroid diseases that most often affects the anterior shins. Herein, we report patient with history Graves disease and Hashimoto thyroiditis who presented boggy, alopecic patches associated scalp pruritus. Punch biopsies from these lesions showed increased interstitial mucin in reticular dermis, consistent localized myxedema. This showcas...

BACKGROUND Lymphoid cells may express somatostatin receptors (SS-Rs) on their cell surface. Therefore radiolabeled somatostatin analogues may be used to visualize SS-R-positive lymphoid neoplasms in vivo. Exact staging is the basis for treatment decisions in cutaneous malignant lymphoma. We considered the possibility that SS-R scintigraphy might offer a clinically useful method of diagnostic im...

Intercellular spaces in the epithelium of the rabbit Peyer's patch and appendix were examined by scanning and transmission electron microscopy to elucidate their three-dimensional structure and their relationship to the reticular spaces in the underlying lymph nodule. Two types of intercellular spaces were distinguished: regularly arranged tubular channels and irregularly winding tunnels. The t...