IMPORTANCE Central pancreatectomy, as an alternative to standard resection for benign and low-grade pancreatic neoplasms, has been described in mainly small retrospective series. OBJECTIVE To describe a large single-center experience with central pancreatectomy. DESIGN, SETTING, AND PARTICIPANTS A retrospective case series in a tertiary referral center included 100 consecutive patients unde...

lipomas are rare benign soft tissue mesenchymal neoplasms in the oral cavity, representing 1% of all benign oral tumors. fibrolipoma (fl), an uncommon, histological variant of the classic lipoma, mostly affects the buccal mucosa. very few cases of fl have been reported in the english literature. to the best of our knowledge a review of the english literature showed 33 cases of fl affecting the ...

primary cardiac tumors are quite rare, especially in the pediatric age group, and their atypical presentations often prevent a timely diagnosis. most primary cardiac tumors in the pediatric age group are benign. fibromas are generally reported as the second most common primary cardiac tumors in the pediatric age group. these neoplasms are often intramural and involve the left ventricular free w...

introduction: meningioma is a benign and slowly-growing tumor that is responsible for 20% of brain neoplasms. it can be accompanied by some genetic disorders such as neurofibromatosis type 2 and is more common among women. as a space occupying lesion, it produces a wide range of signs and symptoms by compressing the adjacent and underlying tissues in the brain. trauma and viruses are possible e...

In general , meningiomas are slowly growing benign neoplasms originating from specialized meningothelial cells in arachnoid granulation, but have a tendency to be locally invasive and recurrent. Meningiomas very rarely metastasize outside the nervous system, occurring in less than 0.1 %. We report the CT and MR findings of a case of a solitary benign syncytial meningioma showing recurrent multi...

MicroRNAs play an essential role in posttranscriptional regulation of gene expression. They are evolutionary conserved, small, noncoding, 19-22-nucleotide RNAs, whose abnormalities, such as up- or downregulated expression, have been associated with several neoplasms, including adrenocortical tumors. Expression levels of distinct microRNAs can distinguish benign from malignant adrenal tumors. Th...

A series of 16 benign human ovarian neoplasms of either stromal or epithelial origin, with one exception, showed transfer RNA methylase specific activity and tRNA-methylating capacity comparable to that of normal ovarian tissue and not to malignant ovarian tumor tissue. The exception was an arrhenoblastoma, a rare masculinizing type of tumor which, although classified as benign, is known to hav...

We reviewed 24 charts of patients with pulmonary hamartoma; numerous congenital anomalies and benign tumors were observed in this series. Most of the observed associations are known to occur in patients with Cowden's syndrome, which is characterized by multiple hamartomatous neoplasms of ectodermal, mesodermal, and endodermal origin; however, to our knowledge, there has been no reported associa...

Introduction Osteoid osteoma (OO) is a benign lesion accounting for approximately 12% of benign skeletal neoplasms [1]. OO maybe in different localizations involving mainly long bones of the extremities and posterior elements of the vertebrae, mostly at the thoracic and lumbar region. Localization in the vertebral body is unusual [2]. In this article a case of OO localized in the thoracic verte...

Solid variant aneurysmal bone cyst is a rare benign bone lesion, representing a small fraction of all aneurysmal bone cysts. The imaging appearance and histologic features may overlap with other benign and malignant neoplasms, posing a diagnostic dilemma for clinicians, pathologists, and radiologists. We present a case of solid variant aneurysmal bone cyst of the distal fibula and review the ra...