leiomyomas are benign tumors that originate from smooth muscle cells. leiomyomas are well known to be the commonest neoplasm arising from the uterus but leiomyomas originating from the scrotum is a rare entity. they originate from the subcutaneous tissue or tunica dartos and can be solitary or multiple. we present a case of solitary scrotal leiomyoma in a 75 years old male who presented with a ...

Retroperitoneal fibrosis is characterised by diffuse inflammatory proliferation of fibroblasts and the deposition of collagen fibrils throughout the retroperitoneum, especially in perivascular sites. This results in blockage of the ureters and other tubular retroperitoneal structures such as the vasculature and lymphatic channels. Left untreated, it typically follows a progressive and fatal cou...

Schwannomas are rare tumors originating from the Schwann sheath of the peripheral or cranial nerves. They are usually benign tumors and in 95% of the cases they originate from the peripheral nerves. Occurrence in the retroperitoneum is rare. We report a case of giant retroperitoneal schwannoma. The patient was a 71-year old female. She was admitted in with the complaints of finding abdominal ma...

A case of a 36-yr-old woman with retroperitoneal synovial sarcoma is described. Her presenting symptom was epigastric pain that radiating to the back. On radiologic study, bulky retropancreatic soft tissue mass was detected which showed cystic and solid components. At operation, complete resection of the tumor was not possible because of the adhesion to the vena cava and the liver. During the f...

This report describes a rare case of retroperitoneal malakoplakia in a 70-year-old woman. The patient underwent open nephrectomy under suspicion of a huge retroperitoneal malignancy invading the right kidney. The mass was attached to the capsule of the lower pole of the kidney. Microscopically, the mass was composed of solid sheets of mononuclear cells and variable numbers of chronic inflammato...

Angiomyolipoma (AML) is a type of tumor in the perivascular epithelioid cell neoplasm (PEComa) family. Epithelioid angiomyolipoma (EAML), having malignant potential, is considered a rare variant of angiomyolipoma. The most common site of EAMLs is kidney, and extra-renal EAMLs are very uncommon, with liver being the most common site.1 Other locations including retroperitoneum, uterus, liver, lun...

sult from aberrant budding from the ventral diverticulum, and are usually discovered in the posterior part of the mediastinum, along the right paratracheal wall (1, 2). Cysts that develop below the diaphragm, especially in the retroperitoneal region, are extremely rare (3, 4), and fewer than 50 cases have been reported in English language clinical literature to date. To the best of our knowledg...

Primitive neuroectodermal tumor (PNET) and Ewing’s sarcoma (EWS) are small round cell tumors occurring mainly in children and adolescents, rarely in adults. It can occur in multiple tissues and organs including kidney, adrenal, bladder, liver, small intestine, colon and rectum, with a preferred location within the chest area, in the limbs and around the spine, but with rare cases of abdominal, ...

Between 2 and 5% of malignant germ cell tumors in males arise at extragonadal sites. The origin of extragonadal retroperitoneal germ cell tumors remains controversial. Whether these develop primarily in the retroperitoneum or are metastases of a primary testicular tumor has long been debated. We report a 38-year-old male who presented with abdominal pain and was diagnosed with retroperitoneal s...

introduction uterine leiomyomas are the most common benign solid tumors of the female pelvis. retroperitoneal myomas are extremely rare and usually malignant with the common location being in the pelvis. case presentation our case involved a woman who was suffering from dysparonia and radiculating right pelvic pain. the pelvic examination revealed a palpable tender mass of about 3-4 cm in size ...