Benign tumors of the lung and pleura encompass a wide variety of epithelial and nonepithelial tumors that have an excellent prognosis in general. Many of these lesions are discovered incidentally in chest radiographs carried out for other reasons, most being asymptomatic at the time of presentation. Such benign tumors can occasionally produce symptoms related to bronchial obstruction (e.g., bro...

A paraprotein can be defined in our present state of knowledge as a complete or incomplete immunoglobulin molecule, possibly abnormal, produced in excess by a single clone of immunocytes (Osserman and Fahey, 1968), and characterized on electrophoresis by a discrete band or peak. The discovery of a paraprotein in the plasma should not be regarded as synonymous with a malignant proliferative dise...

background: sonoelastography is a new ultrasound method which could be helpful to determine which thyroid nodule is malignant. we designed this study to evaluate the accuracy of sonoelastography in differentiating of benign and malignant thyroid nodules in iranian patients. methods: forty thyroid nodules in forty consecutive patients who had been referred for sonography‑guided fine‑needle aspir...

introduction: few studies on benign soft tissue tumors of oral cavity have been conducted in an iranian population. the purpose of this study was to evaluate the prevalence of the benign soft tissue tumors of the oral cavity in three central pathology centers of rasht, iran. materials and methods: in this retrospective study, all benign soft tissue tumors of the oral cavity, were retrieved from...

background and objective: ovarian tumors are among the most frequent pathologic conditions in gynecologic practice and a frequent cause of hospitalization and surgery. the aim of this study was to determine histologic distribution of benign operated masses especially functional ovarian cysts. material and methods: benign ovarian files of operated patients (2961 cases) in 20 tertiary and seconda...

General examination.?A well nourished boy ?f medium build, and cheerful disposition. Anaemia, joundice, cyanosis, nil. Conjuctiva, lacrymals, iris, parotid glands, normal and Wealthy. Lymphnodes were palpable?all over the body. Those over the neck were enlarged ?n either side, being more marked on the left Upper anterior cervical region. He had no temperature at any time and never experienced a...

Introduction: cyclooxygenase-2 (COX-2) is involved in pathogenesis of various tumors and possibly malignant skin tumors including malignant melanoma; however, there is not enough information about COX-2 expression in benign melanocytic lesions. In the present study we compared the expression levels of COX-2 in malignant melanoma and benign melanocytic lesions. Method: In this analytical study, ...

Osteoblastoma is a rare solitary osteoblastic bone neoplasm. It is characterized by proliferation of osteoblasts forming trabeculae within a vascular fibrous stroma. There is a variety of jaw bone lesions with very close clinical, radiological and microscopic interrelations, which make diagnosis more challenging. Familiarity with these rare bony lesions is vital for oral pathologists. This repo...