 | Paragangliomas refer to neoplasms that arise from neural crest cells distributed along the aorta and can occur anywhere from the base of the brain to the urinary bladder. Pheochromocytoma is a subtype of paraganglioma that refers to neoplastic growth of neural crest cells in adrenal gland. The... |
Authors: Mehmet Ruhi Onur (1), Shweta Bhatt (2), Vikram Dogra (3)
University of Rochester School of Medicine Department of Imaging Sciences |
 | Primary lymphoma of the cervix is an uncommon disorder of the cervix comprising less than 1% of cervical malignancies. However cervix is the most common involved site in female genitourinary tract. Secondary involvement of multiorgan lymphoma occurs more common than primary lymphoma in the cervix.... |
Authors: Mehmet Ruhi Onur (1), Abdurrahim Dusak (1), Shweta Bhatt (2), Vikram Dogra (3)
University of Rochester School of Medicine Department of Imaging Sciences |
 | The term megaureter simply means a large ureter which is >5 mm in diameter. Initially described by Caulk in 1923, congenital megaureter is a condition usually diagnosed in neonates and children; its primary presentation in adults is rare. It can be due to different underlying abnormalities (1, 2... |
Authors: Abdurrahim Dusak, MD*, Mehmet Ruhi Onur, MD*, Shweta Bhatt, MD**, Vikram Dogra, MD***.
Department of Radiology, University of Rochester Medical Center, Rochester, NY, US |
 | Scrotal trauma accounts for less than 1% of all testes fractures, because of the location and mobility of testes. Mechanisms of trauma include blunt, penetrating, degloving, chemical, and thermal injuries. Blunt trauma results from sports taruma (50%) and motorcyle accident (15%),... |
Authors: Abdurrahim Dusak, MD*, Mehmet Ruhi Onur, MD*, Shweta Bhatt, MD**, Vikram Dogra, MD***.
Department of Radiology, University of Rochester Medical Center, NY, US |
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Burned out tumor of the testis occur due to rapid growth of the tumor which out grows its blood supply leading to subsequent tumor regression, necrosis and scaring [1]. Burned out germ cell tumors usually arise from testicular teratocarcinomas or choriocarcinomas although some seminomas are also... |
Authors: Eranga Perera MD and Vikram S Dogra,MD.
University of Rochester. |
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Congenital adrenal rests tumors or the testicular adrenal cell tumors (TART) are a frequent findings in patients with congenital adrenal hyperplasia with a reported incidence of 50% to 95% [1]. Congenital adrenal hyperplasia (CAH) is caused by autosomal recessive adrenal cortical enzyme defect [... |
Authors: Eranga Perera, Shweta Bhatt,MD, Vikram S Dogra,MD.
University of Rochester. |
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Renal involvement of lymphoma occurs exclusively due to secondary involvement by the systemic disease. Renal lymphoma can be caused by hematogenous spread or direct invasion from adjacent retroperitoneal lymphadenopathy [1]. Primary lymphoma of the kidney is very rare as there is no lymphatic... |
Authors: Eranga Perera, Shweta Bhatt,MD, Vikram S Dogra,MD.
University of Rochester. |
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Krukenberg tumor is described broadly as metastasis to the ovary. Some authors describe it as tumors in ovary with sarcomatous like stroma composed of signet ring cells with intracellular mucin [1]. In 1896 krukenberg a German pathologist gynecologist described Krukenberg tumor for the first... |
Authors: Eranga Perera, Shweta Bhatt,MD, Vikram S Dogra,MD.
University of Rochester. |
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Kidney receives approximately 25% of the cardiac output and is considered a major organ of drug excretion. Some therapeutic agents can adversely affect the kidneys resulting in tubulo-interstitial, glomerular or vascular disease [1]. Lithium is currently used as the therapeutic agent in the... |
Authors: Eranga Perera, Shweta Bhatt,MD, Vikram S Dogra,MD.
University of Rochester. |
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Fat containing tumors of the adrenal gland are uncommon. It is described with an incidence of 0.08 to 0.2% at autopsy [1]. They comprise of myelolipoma, angiomyolipoma, teratoma, lipoma and liposarcoma. They usually present as an incidental finding in asymptomatic individuals or present with non... |
Authors: Eranga Perera, Shweta Bhatt,MD, Vikram S Dogra,MD.
University of Rochester. |
