A case of Russell body gastritis with multifocal lesions.

Russell body gastritis is an extremely rare gastritis characterized by abundant infiltration of plasma cells with Russell body and eccentric nuclei, known as Mott cells. An 81-year-old Japanese woman with and hepatitis C virus infection complaining of abdominal discomfort underwent upper gastrointestinal endoscopy, which detected an elevated lesion 2 cm in diameter at the anterior wall of the gastric body. A histological examination of the lesion revealed the infiltration of numerous Mott cells with an abundant eosinophilic crystal structure and eccentric nuclei in the lamina propria, resulting in a pathological diagnosis of Russell body gastritis.

Hepatocellular carcinoma in otherwise sonographically normal liver.

Purpose: Hepatocellular carcinoma (HCC) on normal liver is very rare. The goal of this study was to determine the clinical manifestations and the role of ultrasonography (US) in the diagnosis of HCC arising in normal liver.

Methods: The clinical data and US findings in 12 cases of surgically resected HCC in normal liver were retrospectively analyzed.

[A Case of Transverse Colon Cancer Metastasized to the Spermatic Cord after Resection of Peritoneal Dissemination].

We report a rare case of spermatic cord metastasis from colon cancer. A man in his 50s underwent extended right hemicolectomy for transverse colon cancer followed by resection of a peritoneal recurrence. After receiving adjuvant chemotherapy for 6 months, he became aware of a right inguinal mass.

Fetal gut-like differentiation in gallbladder cancer.

Adenocarcinomas showing fetal gut-like (enteroblastic) differentiation can arise in a variety of organs and are frequently accompanied by an elevated serum α-fetoprotein (AFP) level. However, no study has investigated fetal gut-like differentiation in gallbladder cancer in detail. Herein, we performed morphological and immunohistochemical analyses of fetal gut-like differentiation in 49 consecutive gallbladder cancer cases.

Cutaneous polyarteritis nodosa in a patient with Crohn's disease.

A 19-year-old Japanese woman with a 4-year history of Crohn's disease (CD) developed high fever, polyarthralgia, and painful subcutaneous nodules of the legs. A skin biopsy showed panarteritis with fibrinoid necrosis in the deep dermis. Endoscopic examination showed aphthous lesions in the entire colon.

Purkinje cell loss in the cerebellar flocculus in patients with ataxia with ocular motor apraxia type 1/early-onset ataxia with ocular motor apraxia and hypoalbuminemia.

We genetically screened patients with ataxia with ocular motor apraxia type 1 (AOA1)/early-onset ataxia with ocular motor apraxia and hypoalbuminemia (EAOH), with a Japanese variant form of Friedreich's ataxia. Three patients were found to have a homozygous insertion mutation of the aprataxin gene (689insT). An elder sister of a patient in this series died of cerebral hemorrhage at the age of 45, and underwent autopsy.

Dynamic contrast-enhanced magnetic resonance imaging in radiotherapeutic efficacy in the head and neck tumors.

Purpose: The purpose to this study is to identify correlations between pathology and dynamic contrast-enhanced magnetic resonance imaging (MRI) and to assess the utility of this technique in the evaluation of radiation response for head and neck cancer.

Materials And Methods: MRI was prospectively performed after radiotherapy in 27 patients with various head and neck tumors. After bolus injection of contrast material, a dynamic study was performed using a spoiled gradient-recalled imaging sequence.

Sarcomatoid variant of salivary duct carcinoma: clinicopathologic and immunohistochemical study of eight cases with review of the literature.

Salivary duct carcinoma (SDC) is an uncommon, high-grade tumor. We present 8 cases of sarcomatoid SDC, which has been defined recently as a rare variant of SDC. The 8 patients (5 men, 3 women) had a mean age of 63.

A resected case of a small hepatocellular carcinoma developing within the bile duct.

We experienced a resected case of a small hepatocellular carcinoma, which required differential diagnosis from intrahepatic cholangiocellular carcinoma. The patient was a 76-year-old man. While his course had been being observed because of hepatitis C antibody-positive liver cirrhosis, ultrasonographic examination of the abdomen revealed dilation of biliary branches in the anterior segment of the liver and a hyperechoic mass 10 mm in diameter at the origin of the branch.

Expression of tissue factor mRNA and invasion of blood vessels by tumor cells in non-small cell lung cancer.

Purpose: Tissue factor (TF), an initiator of the extrinsic coagulation cascade, is also expressed in a wide range of cancer cells and plays an important role in cancer progression and metastasis, as well as in processes independent of the blood coagulation pathway. For example, by acting as an adhesion molecule enabling tissue invasion, TF may play a key role in the metastatic process and angiogenesis in non-small cell lung cancer (NSCLC).

Methods: To further investigate the role of TF on tumor cell invasion in NSCLC, we measured the TF mRNA expression in the tumors of 42 NSCLC patients using real-time quantitative reverse transcription - polymerase chain reaction carried out in a LightCycler.

A novel method for sentinel lymph node mapping using magnetite in patients with non-small cell lung cancer.

Objective: The detection rate of sentinel lymph nodes in patients with non-small cell lung cancer using isosulfan blue dye is too low for clinical use. Although exposure to radioactivity is reportedly minimal, special procedures are nonetheless required when a radioactive isotope is used as a tracer. Therefore, to eliminate the need for a radioactive tracer and to obtain a better detection rate than is obtained with isosulfan blue dye, we have developed a novel method that employs magnetite as the tracer.

[Combination chemotherapy with nedaplatin and 5-fluorouracil for oral squamous cell carcinomas].

We used a new combination chemotherapy with nedaplatin (CDGP) and 5-fluorouracil (5-FU) in eleven fresh patients with oral squamous cell carcinomas. 5-FU was administered at a dose of 1,000 mg/body by continuous infusion for 24 hours on days 1 to 5. CDGP was administered at a dose of 80 or 100 mg/m2 by drip infusion for 120 minutes on day 5.

[Histopathological grading and clinical features of patients with mucoepidermoid carcinoma of the salivary glands].

In the 22 years between March 1979 and February 2001, we treated 16 patients--10 men and 6 women aged 10-80 years (mean: 44 years)--with mucoepidermoid carcinoma (MEC) of the salivary gland, evaluating them clinically and histopathologically. Tumor sites included 12 at the parotid gland, 3 at the submandibular gland, and 1 at the minor salivary gland. All tumors were graded histopathologically based on the criteria of Goode et al.

A low-grade extraskeletal osteosarcoma.

The case of a 35-year-old woman with low-grade extraskeletal osteosarcoma of the left leg is presented. Radiographs showed peripheral ossification of the lesion, suggesting myositis ossificans. Most of the tumor was composed of cartilage, and the cellularity and cell atypia of the proliferating chondrocytes were mild to moderate.

[Third ventricular chordoid glioma: report of a surgical case].

We reported a rare case of third ventricular chordoid glioma and reviewed the literature. A 25-year-old male presented with a two-year history of voracious appetite. Three months prior to admission, he developed progressive memory impairment.

Primary osteosarcoma of the uterine corpus: case report and review of the literature.

A rare case of rapidly growing osteosarcoma that developed in the uterine corpus of a 62-year-old woman is presented. The tumor occupied almost the entire pelvic cavity and extended into the abdominal cavity, with marked involvement of the intestines. Histopathologically, the tumor was composed of an osteoblastic component, accompanied by conspicuous bone formation, and a fibroblastic component.

Irradiated carcinoma of the tongue: correlation of MR imaging findings with pathology.

Objective: MR imaging was prospectively correlated with pathologic findings to study whether MR imaging can differentiate viable from nonviable tumor tissue in the irradiated carcinoma of the tongue.

Subjects And Methods: MR examinations were performed after radiation therapy in 21 patients with carcinoma of the tongue. All patients underwent either a total glossectomy or hemiglossectomy after radiation therapy.