background â vascular neoplasms are the most common primary splenic tumors that include both benignand malignant variants. one of these variants is hemangioma which is a benign vascular tumor. hemangiomas are slow growing and large tumors are rare. these tumors are most often incidental findings during imaging studies, laparotomy, or at autopsy. case presentation herein, we presented a young la...

Salivary gland tumors are among the pathologies in the head and neck that may be challenging in diagnosis and treatment. Most benign tumors occur in the parotid gland. Pleomorphic Adenoma is the most common type. Basal Cell Adenoma is a subtype of the Monomorphic Adenoma with rare occurrence. Proper diagnosis and clinical evaluation by the use of radiography can lead the physician to the best t...

While all childhood cancers are rare, tumors that particularly infrequent or underrepresented within pediatrics studied under the umbrella of Children’s Oncology Group Rare Tumor committee, divided into Retinoblastoma and Infrequent subcommittees. The subcommittee has traditionally included an emphasis on globally rare such as adrenocortical carcinoma, nasopharyngeal those in young children, de...

F-18 FDG is the most widely used tracer in molecular imaging and it is applied for many purposes mainly in malignant diseases. Incidental finding are common in FDG-PET/CT imaging and includes benign and malignant lesions. Among the rare tumors , adrenal oncocytomas are uncommon findings and incidental findings of thyroid malignancies are not rare. Oncocytoma is a rare adrenocortical tumor and m...

Collision tumors are rare neoplasms defined by the presence of two distant in same organ without any histological intermixing. Each component collision tumor occur coincidently and no connection is found between tumors. Our case a ovary composed mature cystic teratoma Mucinous cystadenoma.

retinoblastoma is the most common intraocular neoplasm in children. glial tumor of the retina and optic nerve head are considered to be congenital and are therefore classified as hamartomas. concurrent occurrence of these tumors in one eye is uncommon and by reviewing the studies, a few cases have been reported. we report a 9 years old boy with eye enucleation and concurrent occurrence of retin...

tumors that originate from the nerve sheath comprise diverse groups -perineuroma, neurofibroma and schwannoma. the epithelioid variant of these tumors is uncommon and mostly seen in malignant counterparts. although this type of morphology is well recognized in peripheral nerve sheath tumors, its presence in the central nerves is rarely reported. very few cases of nerve sheath tumors have been r...

gastrointestinal stromal tumors (gists) are uncommon tumors of the gastrointestinal (gi) tract that occur predominantly in adults. these tumors originated from cajal cells have positive mutations for kit (cd117) or platelet-derived growth factor receptor (pdgfra). gist especially multiple gists are very rare in children and lacking mutations in kit. we present a previously healthy 13 year- old ...

abstract primary cardiac tumors are rare in all ages. their reported prevalence ranges from 0.001 to 0.03 percent in autopsy series. 25 percent of primary cardiac tumors are considered to be malignant, the majority of which are sarcomas. on account of the late presentation of symptoms in malignant heart masses, finding locally infiltrative tumors or systemically widespread cases at initial pres...