Objective: To determine if the hepatobiliary phase of gadoxetate disodium-enhanced hepatic MRI increases the sensitivity in differentiating focal nodular hyperplasia from hepatocellular adenomas. Design: Prospective analysis. Methods: This study was comprised of 52 patients (2 men, 50 women) with suspicion of hepatocellular adenomas or with focal nodular hyperplasia on a previous CT or conventi...

Myofibroma is a neoplasia of myofibroblasts that can be solitary or multiple and it is found most commonly in the head & neck region including scalp, forehead, parotid region and oral cavity. In the eyelid it is rarely reported. It has a benign course in the solitary form and fatal in its multiple form. A 4 month male infant referred to Farabi hospital -the referral center for eye diseases- wit...

Spindle cell lipoma, a rare variant of lipoma, is a benign tumor found in the posterior neck and shoulder. A 24-year-old man with a close family history of malignant lymphoma had presented with a large, firm, nodular mass found in the right supraclavicular area. Excision of the deeply located mass revealed a pale yellow, rubbery nodule which grossly resembled an enlarged lymph node, with a vari...

Lipoma arborescens arising in the extra-articular bursa of the knee joint is extremely rare. We describe an 11-year-old boy who complained of a gradual swelling mass of the lateral knee joint. Magnetic resonance imaging (MRI) showed a high signal intensity tumor on T1- and T2-weighted images with a thickened septa and nodular lesion that showed low signal intensity. The radiologist suggested th...

BACKGROUND Renal cell carcinoma is an interesting tumor due to its unpredictable behavior. Common metastatic sites of renal cell carcinoma are the lungs, lymph nodes, bones and liver. Concurrent thyroid metastasis of clear cell carcinoma is uncommon but it can appear as a rapidly growing cervical, painless nodular mass. CASE REPORT We report a case of a 56-year-old male patient with clear cel...

A 46-year-old man presented with an extremely painful, 1 cm, mobile, nodular mass located on the medial side of his right elbow. Symptoms failed to respond to conservative treatment. Ultrasound and Doppler flow imaging revealed a well-defined, round hypoechoic mass. Under local anesthesia, the mass was resected and the wound closed without complication. Final pathology diagnosed the lesion as a...

the papillary cystadenoma lymphomatosum (pcl), also called warthin's tumor, is a benign salivary gland tumor which primarily involves the parotid gland. these lesions are composed of a double layer of cuboidal or culmnar eosinophilic cells lining a cystic cavity which lymphoid tissue is present in the supporting stroma. the lesions shows a predilection for males, with peak incidence during...

A case of primary pulmonary lymphoma presenting as a nodular lesion on the chest radiograph in a patient with the acquired immune deficiency syndrome is described.

Introduction:
 Intestinal amyloidosis frequently encountered as a part of systemic amyloidosis, but rarely can be confined in the gastrointestinal tract.
 Case report:
 A 54-year-old male presented with complaint gas and stool discharge. Urgently segmental bowel resection was performed for ileus. Macroscopically nodular lesions, largest at 7x3x0.7 cm size were observed intestinal...

Diffuse large B cell lymphoma is the most common type of non-Hodgkin's lymphoma, representing nearly one-third of all cases. Any organ can be involved, making a diagnostic biopsy imperative. When the lungs are the involved organs, it is called primary pulmonary lymphoma (PPL). Hereby, we present a case of PPL that demonstrated a single large mass on chest CT and had metastatic skin lesions. The...