Nodular deposits on lumbar nerve roots are a well recognized manifestation of metastatic spread of certain intracranial tumors, particularly medulloblastoma and ependymoma, via the subarachnoid pathway. The histologic diagnosis usually is established at the time of posterior fossa exploration. However, obtaining a diagnosis at surgery can be hazardous in some intraaxial masses that do not have ...

The thoracic duct cyst is an extremely rare cystic lesion in the mediastinum. Surgical treatment of the cyst is necessary to confirm histologic diagnosis and prevent potential complications such as spontaneous or traumatic rupture of the cyst and chylothorax.

•Histologic morphology is frequently equivocal for PSTTs.•Histology combined with immunohistochemical staining was necessary to make the diagnosis.•PSTT confined to the uterus was successfully treated with surgery alone.

A case of cherubism in a 9 year old boy with no familial history is presented. Clinical features, histologic appearance, radiographic findings, differential diagnosis and rationale for treatment is discussed.

Melanotic neuroectodermal tumor of infancy is a rare congenital neoplasm involving the head and neck in young patients. The clinical assessment, histologic diagnosis, and management is reviewed, with an emphasis on different treatment alternatives in two new case reports.

background il-33 is a novel member of the il-1 family, which has been shown to play an important role in t helper 2 (th2)-associated immune responses. recent studies have suggested a possible role for il-33 in the pathogenesis of liver damage during acute and chronic hepatitis; furthermore, il-33 may be involved in the development and progression of liver fibrosis. objectives to evaluate serum ...

Definitive diagnosis of the bat disease white-nose syndrome (WNS) requires histologic analysis to identify the cutaneous erosions caused by the fungal pathogen Pseudogymnoascus [formerly Geomyces] destructans (Pd). Gross visual inspection does not distinguish bats with or without WNS, and no nonlethal, on-site, preliminary screening methods are available for WNS in bats. We demonstrate that lon...

BACKGROUND The role of histology in the targeted management of nonsmall cell lung cancer (NSCLC) has garnered renewed attention in recent years. We provide contemporary population-based estimates of survival and an assessment of important prognostic factors in stage IV NSCLC by major histologic subtype. METHODS Using data from the Surveillance, Epidemiology and End Results (SEER) Program, we ...

Malignant Fibrous Histiocytoma (MFH) is the most common soft-tissue sarcoma which predominantly surfaces in the retro-peritoneum and extremity. MFH of lung is a very rare condition. The diagnosis is essentially through histologic examination. However, the invasion of the chest wall or other organs might help establish the malignant nature.We report a case of a 77-year-old man who had been prese...