Bile duct adenoma (BDA) is a comparatively rare disease and there are relatively few reported cases in the English-language literature. Herein, we present a 63-year-old woman, who was incidentally found to have a liver-occupying lesion during a routine medical examination. Ultrasonography suggested "quick wash-in and wash-out" sign with an obvious nodular enhancement in the peripheral of the ri...

It has been established that secondary hyperparathyroidism (SHPT) represents a long-term complicance of chronic renal failure (CRF) associated to diffuse or nodular hyperplasia of parathyroid glands. The molecular mechanisms underlying both hyperactivity and proliferation rate of parathyroid cells in uremic patients have not yet been elucidated. A decreased sensitivity to vitamin D feedback is ...

Nodular regenerative hyperplasia (NRH), characterized by diffuse hepatic micronodular transformation in groups without fibrous septa between the nodules, is a rare benign liver lesion that has many synonyms in previous literature. Pathologic evaluation is the mainstay of accurate diagnosis. Treatment is focused on its underlying conditions and complications of portal hypertension. A 39-year-old...

We describe a patient in whom an early carcinoma of the duodenum was able to be resected endoscopically. A 77-year-old man presented with epigastric pain. Upper gastrointestinal endoscopy revealed a mass in the duodenum, and the patient was admitted. A whitish nodular aggregated lesion, measuring 20 mm in diameter, was found in the second portion of the duodenum. Examination of a biopsy specime...

BACKGROUND AND PURPOSE Isolated nodular infarction has rarely been described in human. The purpose of this study is to report clinical and laboratory findings of isolated nodular infarction. METHODS Eight patients with isolated nodular infarction were recruited from 6 hospitals in Korea. All patients underwent a complete and standardized neurotological evaluation including ocular torsion, bit...

radical resection of a pathological lesion along with the preservation of eloquent cerebral tissue is the principle goal of neurosurgery. brain lesions are usually diagnosed by conventional magnetic resonance imaging (mri), but this method is unable to describe the relationship between lesions and neighboring specific white matter (wm) tracts. diffusion tensor tractograghy (dtt) is a new sophis...

Background and Purpose Preoperative needle biopsy is a standard procedure performed prior to surgery, but it has an inherent limitation, as it is able to observe only part of the entire tumor. This becomes especially problematic in diagnosing ductal carcinoma in situ (DCIS) as there may be areas with invasions at regions that did not undergo biopsy. MR imaging may thus play an important role in...

OBJECTIVE To determine the usefulness of parathyroid hormone (PTH) measurement in needle aspirates of a suspicious neck mass to confirm its parathyroid nature in patients with primary hyperparathyroidism. METHODS Thirty-three patients with surgically proved primary hyperparathyroidism were submitted to neck ultrasound (US), parathyroid scintigraphy, and assay of PTH in the aspirate (PTHa) of ...

Nodular histiocytic/mesothelial hyperplasia (NHMH) is a very rare condition. It generally thought to be associated with repeated mechanical or chemical stimulation. This study reported NHMH papillary growth pattern in the ovary following high-intensity focused ultrasound (HIFU) treatment for uterine leiomyoma and adenomyosis. A 48-year-old female, who had history of undergoing HIFU 7 times aden...