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Biomedical subjects

J Haratake

Publications and source records attributed to J Haratake.

At least 91 records · Page 5Linked to original sources
PubMed1987

Nodular regenerative hyperplasia of the liver associated with idiopathic membranous glomerulonephritis.

Nodular regenerative hyperplasia of the liver was found in a 67-yr-old man who had been suffering from nephrotic syndrome for years. Main clinical symptoms and signs were edema, proteinuria, hypertension, and abnormal studies of electrocardiogram. His renal disease had been relatively well controlled by administration of corticosteroids, but he died suddenly on March 12, 1986. Autopsy revealed fresh and old myocardial infarct and membranous glomerulonephritis. The liver weighed 1530 g and showed a diffuse nodular configuration except for in the area of Zahn's red infarct. Fibrosis was minimal in most areas, and each nodule was circumscribed by compressed atrophic parenchyma. However, this case was unusual compared to most cases of nodular regenerative hyperplasia because there was prominent fibrosis in the perihilar portion. Paucity of interlobular arterial branches was confirmed by a crude morphometry. We describe herein this somewhat unusual nodular regenerative hyperplasia case with some discussion concerning the histogenesis.

Aged↗
PubMed1986

Ultrasonic tissue characterization of malignant lymphoma.

The echographic characteristics and ultrasonic tissue characterization of malignant lymphoma are reported. The patient was a 72-year-old man with stage IV malignant lymphoma of medium cell type and had lymphomatous involvements in the liver, the spleen, and peripancreatic, para-aortic, hepatic and splenic hilar lymph nodes. The echo-characteristics were hypoechoic in nature in all these involved lesions and the histologic specimen at the border between the lymphoma lesion and the liver was examined as well as the peripancreatic lymph node from the viewpoint of the ultrasonic tissue characterization. It was concluded that the rich cellularity in the homogeneous nature when compared with the surrounding structure, can produce hypoechoic lesion in routine clinical echograms.

Aged↗
PubMed1986

A clinicopathological review of 12 autopsied cases of adult T-cell leukemia.

Twelve autopsied cases with adult T-cell leukemia (ATL) were reviewed clinicopathologically. The prognosis of three cases who had suffered from severe cutaneous lesions was much better than that of the other nine cases with no or negligible cutaneous lesions. The surface marker of leukemic cells from six cases was ordinary inducer/helper phenotype (OKT4+ and 8-), but in one case leukemic cells showed OKT4+ and 8+. In another case, a significant amount of leukemic cell infiltration was found in the thymic cortex. Calcium content in the bone of ATL cases was lower than that of the patients without ATL (control group), and six cases with ATL (50%) were complicated by severe hypercalcemia. Neither adenoma nor hyperplasia of the parathyroid glands was found in any case. In most severely hypercalcemic patients, bone trabeculae were actively absorbed by numerous osteoclasts and partly replaced by fibrous tissues. In two normocalcemic patients, skeletal calcium content was also markedly reduced by osteoporosis, but the activation of osteoclasts was inconspicuous. It was speculated that the manner of bone resorption in ATL cases was diverse and there were some clinicopathological subtypes in ATL from the viewpoints of cutaneous lesions, hypercalcemia, and bone lesions.

Adult↗
PubMed1986

Gastric leiomyosarcoma with massive myxoid degeneration. A histochemical and ultrastructural study.

Histochemical and ultrastructural features of a gastric myxoid leiomyosarcoma from a 55-year-old man were examined. At autopsy, the tumor was located mainly in the greater omentum and was directly connected to a coinsized gastric tumor. Multiple hepatic metastases and peritoneal disseminations were noted. Light-microscopically, the tumor was composed of a prominent myxoid stroma and ovoid or rounded tumor cells. The myxoid stroma was stained weakly basophilic with hematoxylin and eosin, and was mainly composed of hyaluronic acid. Tumor cells in the stomach were spindle-shaped and apparently myogenic. Ultrastructurally, the gastric tumor cells showed a loose cohesion with junctional apparatuses, pinocytotic vesicles, basal laminae, and cytoplasmic filaments with focal densities. Tumor cells in the omentum and the liver, however, were poorly differentiated and showed an epithelioid nature in part. This unique leiomyosarcoma is reported with some differential diagnoses from other myxoid sarcomas.

Chondrosarcoma↗
PubMed1986

Minute hepatoma with excessive copper accumulation. Report of two cases with resection.

Minute hepatomas with prominent copper accumulations were resected in two women, aged 60 and 62 years, who had never suffered from jaundice. Mild elevation of serum alpha-fetoprotein level was found in both patients. One tumor was diagnosed by celiac angiography, and the other was determined by an ultrasonic echogram. Microscopically, these two tumors were relatively well-differentiated hepatocellular carcinoma, though having less-differentiated foci. Many cancer cells contained numerous copper granules stained by orcein, Victoria blue, and p-dimethylaminobenzylidene rhodanine. Ultrastructurally, cancer cells contained many secondary lysosomes with an electron-dense material. We concluded that the excessive copper in the cancer cells was aggregated lysosomal copper metallothionein, and that it might not be carcinogenic but stored by an altered metabolism of copper and copper-binding proteins with the neoplastic transformation.

Carcinoma, Hepatocellular↗
PubMed1986

[Diagnostic variations among eight pathologists in the histologic classification of lung cancer].

In order to estimate the magnitude of variations among pathologists in histological diagnoses of lung cancer, eight doctors were asked to independently diagnose 73 preparations of the lung (16 biopsied cancers, 27 resected specimens, 21 autopsied specimens and nine benign autopsied cases). The rates of correct diagnoses by the pathologists ranged from 81.7% to 100%, averaging 91.8%. There was no significant difference between the lowest rate and mean or median of the rates. The variation of the diagnosis tended to be more prominent in large cell carcinoma than in adenocarcinoma or small cell and squamous cell carcinoma. It was suggested that the diagnostic criteria for large cell carcinoma varied to some extent among pathologists.

Adenocarcinoma↗
PubMed1985

[An autopsy case of well differentiated leiomyosarcoma of the jejunum].

A 54-year-old man had a leiomyosarcoma of the jejunum, 8 X 6 X 5 cm in size resected, on December 17, 1982 and died of liver metastases with hemorrhagic ascites (4,000 ml) on July 5, 1984. The malignant potential of a smooth muscle tumor based on the mitotic index of tumor cells has been stressed for many years. However, our biologically malignant autopsy case showed not only an exceptionally low mitotic index in tumor cells of the surgical specimen but also in those of the autopsy specimen. In this report, the fact that the degree of mitotic figures sometimes fail to indicate biological behavior is discussed.

Humans↗
PubMed1985

Familial intrahepatic cholestatic cirrhosis in young adults.

Two siblings with intrahepatic cholestatic cirrhosis and their brother, who had a potentially related disease at the time of accidental death, are presented. The onset of disease occurred during adolescence in all 3 cases. The initial sign was mild jaundice or portal hypertension. There was no abnormality in the countenance, cardiovascular system, or vertebral column. Except for the brother who died from an accident, jaundice gradually increased. Death followed due to cirrhosis. Liver biopsy specimens of these 2 patients showed diminution of interlobular bile ducts with no significant cholangitis. At autopsy, the livers of the 2 patients showed biliary cirrhosis without extrahepatic biliary obstruction. In both cases there was an accessory lobe on the right hepatic lobe. Histologically, septal bile ducts showed pronounced papillary proliferations of the epithelium; there was also a decrease in the number of small interlobular bile ducts. Excess copper accumulation in the liver was ascertained. It is suggested that the disease in the 2 autopsied cases is intrahepatic cholestatic cirrhosis due to hypoplasia of the intrahepatic biliary trees.

Adult↗
PubMed1985

Adult T-cell leukemia complicated by hypercalcemia. Report of three autopsy cases with special reference to the etiologic factor of hypercalcemia.

Three autopsy cases of adult T-cell leukemia (ATL) complicated by a severe hypercalcemia are presented. In two of them, the hypercalcemia itself was the direct cause of death. There was no evidence of an increase of serum PTH in all three cases. Prostaglandins were within normal range in two of them. By a bioassay, a bone-resorbing factor, osteoclast activating factor (OAF)-like substance, was demonstrated in the culture medium of leukemic cells from one patient. Also, various degrees of osteoclastic activation were found in the bones of all three patients by the postmortem examination. It may be that the hypercalcemia occurring in cases of ATL is partly caused by the humoral factor, which is released from leukemic cells and activates a bone resorption by osteoclasts. Similar cases in which a significant activation of osteoclasts was practically demonstrated by histopathologic examination in addition to the detection of a bone-resorbing factor have been rarely reported.

Adult↗
PubMed1985

[Clinicopathological examination of 12 autopsy cases of carcinomatosis of the bone marrow].

Twelve autopsy cases of carcinomatosis of the bone marrow were examined clinicopathologically. Among them, 7 were gastric adenocarcinoma, and the other 5 were a rectal carcinoid and carcinomas of the lung, prostate, maxilla and kidney, respectively. The gastric cancers were almost all poorly differentiated adenocarcinoma with mucin production and presented poorer prognoses than the other cancers. Leukoerythroblastic anemia, microangiopathic hemolytic anemia and DIC were found more frequently in the gastric cancers than in the others. It is concluded that the evolution of these critical hematologic disorders may be dependent on differences of histologic type, original focus and cancer-host interactions as well as wide-spread skeletal metastases of cancer cells.

Adult↗
PubMed1984

Primary mucoepidermoid carcinoma in the thyroid gland. A case report including an ultrastructural and biochemical study.

An extremely rare mucoepidermoid carcinoma of the thyroid gland was found in a 44-year-old woman. By light microscopic examination, the tumor consisted of mucous cells and squamoid cells, and was similar to that occurring in any other organs. By electron microscopic examination, the mucous cells displayed prominent mucous droplets, and showed no evidence of colloid production in their cytoplasms. Abundant tonofilaments in aggregates were observed in the squamoid cells. Biochemically, thyroxine (T4) and triiodothyronine (T3) were not detectable in the tissue of this tumor. These findings indicate that this mucoepidermoid carcinoma does not retain the functional properties of thyroid follicular cells; namely, no evidence was found to substantiate a follicular epithelial origin of this tumor.

Adenocarcinoma↗
PubMed1984

Malignant lymphoma of the parotid gland with monoclonal cytoplasmic immunoglobulin.

A 56-year-old Japanese man with a malignant lymphoma of the parotid gland was reported. The tumor was located in the superficial lobe of the parotid gland, and somewhat invaded the surrounding soft tissues, but the regional lymph nodes were not involved. Histologically, the tumor was composed of round cells with plasmacytoid configurations and small lymphocytes. The plasmacytoid cells showed eccentric nuclei with fairly marked irregularities and perinuclearr halos. In a large number of tumor cells, a monoclonal cytoplasmic immunoglobulin (CIg), IgG-Kappa type, was demonstrated by the PAP method. Ultrastructurally, some of the tumor cells showed well-developed endoplasmic reticulum. From these findings, this tumor was diagnosed as a diffuse B-cell lymphoma, mainly composed of lymphoplasmacytoid cells. And this tumor may bear a similar nature to an extramedullary plasmacytoma of the classical terminology. Malignant lymphoma of the parotid gland is rare but a case with the demonstration of monoclonal CIg is considered very rare.

Female↗
PubMed1984

Malignant mesenchymoma of the esophagus.

This is a case report of a malignant mesenchymoma of the esophagus in a 50-year-old Japanese man. The tumor was a sessile polypoid mass showing a downward invasion limited to the submucosa of the esophagus. Histologically, the lesion contained rhabdomyosarcomatous and osteosarcomatous areas, in addition to an ill-defined fibrosarcomatous element. In contrast with reports of carcinosarcoma up to the present, this tumor lacked any invasive lesion of an epithelial malignancy. The morphogenesis of these tumor groups was discussed from a hamartoblastomatous standpoint.

Esophageal Neoplasms↗
PubMed1984

Meningioma of the parapharyngeal space: a unique extension of intracranial tumor.

A 45-year-old woman with a meningioma growing in the parapharyngeal space is reported. Her initial symptom was a stuffy feeling in the right ear and swelling of the right parapharynx. The parapharyngeal mass was biopsied, and a frozen section diagnosis suggested a paraganglioma. On electron microscopy, however, the tumor cells failed to show secretory granules, and represented a prominent interdigitation of the cytoplasm with occasional desmosomal attachments. Based on these features the tumor was diagnosed as a meningioma. Thereafter a mass lesion in the temporal lobe of the brain was detected by computerized tomography of the brain. The extracranial extension of the meningioma may occur in some occasions, but such cases in which the infiltrative portion in the parapharyngeal space was initially discovered have been rarely reported.

Diagnosis, Differential↗
PubMed1983

[Cancer of the intra-pancreatic common bile duct observed 9 years after choledochojejunostomy].

A 54-year-old female was admitted in June 1982, complaining of jaundice and fever of several months' duration. She had undergone cholecystectomy and choledocho-jejunostomy, 22 years and 9 years before, respectively. On admission, PTCD was carried out immediately. It showed marked dilatation, of the common bile duct and stricture of the anastomosed portion. On August 2, she died of jaundice and sepsis. On autopsy, a cystic tumor was found at the common bile duct remnant in the head of the pancreas. It was a tubular adenocarcinoma and invaded the ostium of the choledochojejunostomy. The occurrence of adenocarcinoma may be one of the late complications of choledochojejunostomy.

Adenocarcinoma↗
PubMed1983

[An autopsy case of maxillary cancer representing carcinomatosis of the bone].

A 51-year-old man was admitted to our Otorhinolaryngological Clinic on November 18, 1980, complaining of a nasal blockage. A biopsy specimen from the left maxillary sinus resulted in a diagnosis of poorly differentiated squamous cell carcinoma. About a year after left maxillectomy, he presented with widespread skeletal metastasis and severe anemia. On August 25, 1982, he died of pneumonia. On autopsy, generalized bone metastasis was found; there was no local recurrence and only minimal pulmonary metastasis. Although there are some maxillary cancer cases with restricted bone metastasis, diffuse carcinomatosis of the bone, as seen in this case, is rare. We also present a review of similar cases.

Bone Neoplasms↗