Submandibular swellings occur relatively commonly in infants and children. Such swellings may be congenital or acquired. The differential diagnoses generally include common conditions, such as cervical lymphadenopathy, branchial arch anomalies, vascular malformations, inflammatory lesions and, less commonly, neoplasm.1-6 Biopsy or excision is the standard approach taken for most pediatric nonva...

Malignant gliomas are the most common neoplasm in the central nervous system. When treated with conventional treatments including surgery, irradiation, and chemotherapy, the average life expectancy of the most malignant type, glioblastoma multiforme is usually less than 1 year. Therefore, gene therapy is expected to be an effective and possibly curative treatment. Many gene therapeutic approach...

A 34-year-old tetraplegic patient with suppurative epididymitis was found on follow-up examination and ultrasonography to have a testicular mass. The radical orchiectomy specimen contained an undifferentiated spindled sex cord-stromal tumor arising in the rete testis. Testicular sex cord-stromal tumors are far less common than germ cell neoplasms and are usually benign. The close relationship b...

S19 ENDOSCOPIC ULTRASOUND / VOLUME 6 / SUPPLEMENT 1 / AUGUST 2017 2.7 ± 1.7 cm. Most patients were asymptomatic. The type of cystic lesions was intraductal papillary mucinous neoplasm (IPMN; n = 35), serous cystadenoma (n = 18), mucinous cystic neoplasm (MCN; n = 12), solid pseudopapillary epithelial neoplasm (SPEN; n = 9), cystic degeneration of other tumors (n = 4), simple cyst (n = 4), infec...

a set of one hundred and twenty nine patients with known primary malignancy and suspected brain metastasis was reviewed in present study. the patients were selected among patients presented to the mri section of imam khomeini hospital or a private mri center in tabriz (iran). primary tumor site, clinical manifestations, number and site of lesions were identified in this patient population. the ...

Pheochromocytomas are tumors of the neural crest-derived chromaffin cells. The hallmark of this rare and fascinating neoplasm is the synthesis and secretion of catecholamines in an unregulated and potentially life-threatening manner. Most pheochromocytomas produce an abundance of norepinephrine. Epinephrineor dopamine-secreting pheochromocytomas are less common.[1] Pheochromocytomas can also be...

Myoepithelioma is a rare benign neoplasm of salivary glands. Accounts for less than 1% of all salivary gland neoplasms. It is more common in parotid glands foIIowed by small salivary glands. Myoepithelioma once was considered as extreme variant of pleomorphic adenoma. But now many authors consider the myoepithelioma as distinct pathological entity as it i of myoepithelial cells and behaves more...

INTRODUCTION C arcinoma of the male urethra is an uncommon neoplasm accounting for less than 1% of all malignancies, and generally occurs in the 5 decade of life. It is a very serious disease, often with a late diagnosis and lymph node involvement, which usually manifests as ure(2-4) Dysuria is the most common symptom, sometimes associated with pain during urination, later with hematuria. The e...

Primary squamous carcinoma ofthe thyroid gland is a rare condition accounting for less than 1% of all thyroid malignancies."12 Although most frequently seen in the fifth and sixth decades, the tumour may arise in patients across a wide age distribution.3 Squamous carcinoma of thyroid is associated with a poor prognosis, most patients dying within one year of diagnosis.1'3 Overall, metastatic sq...

Amebloblastoma as the most common epithelial odontogenic neoplasm may occur in two forms of central and peripheral. This report presents a case of a 41-year-old Iranian female with a six-month complaint from a painless mass in the right posterior portion of the mandible. The case was diagnosed as an exophytic epulis-like peripheral component with characteristics of peripheral ameloblastoma and ...