Preputial gland neoplasms in the Fischer 344 rat are relatively uncommon tumors with a prevalence of approximately 3% in the National Toxicology Program data base. They occur late in life, are well differentiated, and rarely metastasize. Based on studies through 4 serial passages, 10 well-differentiated preputial gland neoplasms transplanted into the mammary fat pads of syngeneic recipients gre...

The purpose of this analysis was to evaluate to what extent subsequent malignant neoplasms account for the increasing rates of cancer occurrence among children. Data from the population-based Surveillance, Epidemiology, and End Results program were used to calculate age-standardized annual incidence rates from 1974-1989 for 10 common cancers among children 14 years of age or younger. Mean rates...

Diagnosis and classification of lung and pleural neoplasms are complex due to diverse histopathology and tumor heterogeneity. A large number of immunohistochemical markers have recently become available to facilitate accurate diagnosis and classification of pulmonary and pleural neoplasms. The purpose of this article is to review the current data available on these markers and to provide a prac...

The effects of a wide variety of social life factors on the mortality of five major malignant neoplasms, i.e. those of the stomach, lung (and trachea and bronchus), breast and uterus, and leukemias, in 46 prefectures in Japan were analyzed by stepwise regression analysis twice at a 5-year interval. The results indicated the following three predisposing factors for malignant neoplasms: rural res...

AIM The aim of the present study is to establish the relative frequency and distribution of benign and malignant epithelial neoplasms of salivary glands in the Pathology and Cytology Laboratory, STUDY DESIGN Historic cohort. MATERIAL AND METHOD in the state of Sergipe, during the period 1980-1999. The neoplasms were individualized by gender, age, race of the patients, anatomic localization ...

Renal carcinoma cell is responsible for 3e4% of all neoplasms and 80e85% of malignant tumors of the renal cortex. The most frequent histological subtypes are: clear cells (approximately 75%), papillaries (10%), chromophobes (5%), oncocytoma (8%), angiomyolipoma (<1%). Among the less common histological types are the medullary carcinomas (1%), collecting ducts (1%), Xp11 translocation (<1%) and ...

BACKGROUND According to the definition by the International Agency for Research on Cancer (IARC), primary multiple neoplasms are two or more neoplasms of different histopathological build in one organ, or two or more tumors occurring in one patient, regardless of the time of their occurrence (synchronic - up to 6 months, metachronous - after 6 months), coming from an organ or a tissue and not b...

BACKGROUND Cavernous hemangiomas are rare tumors, mainly localized in the liver and skin, but also reported in the cerebellum and eye fundus as a part of von Hippel Lindau Syndrome. Adrenal hemangiomas are less than 1% of all the adrenal neoplasms and usually are reported as benign, non-functioning tumors, originating from the adrenal cortex and surrounded by normal or hyperplastic adrenal tiss...

Numb chin syndrome is a rare sensory neuropathy of the mental nerve characterized by numbness, hypoesthesia, paraesthesia, and very rarely pain. Dental causes, especially iatrogenic ones, maxillofacial trauma, or malignant neoplasm are etiologic factors for this rare syndrome. Many malignant and metastatic neoplasms are causing this syndrome, like primary osteosarcoma, squamous cell carcinoma, ...

Low-grade appendiceal mucinous neoplasms (LAMN) are rarely seen. They incidentally detected during an appendectomy for appendicitis. Treatment is in low-grade neoplasms. Those having adverse features based on the appendix, lymph node metastasis, and tumour size greater than 2 cm, with hemicolectomy done. We present a rare case report of neoplasm diagnosed managed by right hemicolectomy.