No abstract available.
Carcinoma*

No abstract available.
Carcinoma*

No abstract available.
Carcinoma

This paper documents the utility of ultrasound-guided tru-cut biopsy in the diagnosis and subsequent management of a case of occult breast carcinoma presenting with multiple distant metastases in the absence of a primary breast lesion. She was initially diagnosed as primary ovarian malignancy with metastatic disease and subsequently underwent transvaginal ultrasound-guided tru-cut biopsy of the right ovarian mass. Histologic and immunohistochemical studies were consistent with a metastatic adenocarcinoma of breast origin. The patient underwent chemotherapy for primary breast carcinoma and has responded well.
Carcinoma

Basosquamous carcinoma, a variant of basal cell carcinoma, is rather rare with an incidence of only 1 – 2% of cases. 1, 2 It has a predilection for the head and neck region (95.6%) with primary sites including the nasal, auricular and periocular area with the neck involved in only 1.1%.1 Unlike typical basal cell carcinoma, basosquamous carcinoma behaves more aggressively with a higher tendency for metastasis and recurrence. Its rarity translates to a lack of management guidelines. Because of its pattern of growth and relative aggressiveness, treatment plans must be well laid; recurrence resulting from poor planning may lead to a worse outcome and poorer prognosis.
Carcinoma

Necleolar organizer regions(NORs) ARE LOOPS OF DNA which transcribe to ribosomal RNA by RNA polymerase I. Since NOR-associated proteins are argyrophilic, silver staining method has been used for demonstration of AgNORs. The numbers and/or configurations of NORs may reflect the activities of cells in hyperplastic and neoplastic conditions. To evaluated the applicability of AgNORs in the diagnosis of hepatocellular carcinoma, the author had performed silver staining on the routinely processed, formalin-fixed, paraffin-embedded sections of 14 cases of normal liver(control), 23 cirrhotic liver, and 21 hepatocellular carcinoma. The results are summarized as follows: 1) The mean number of AgNORs per nucleus(mAgNOR) of normal liver, cirrhotic liver and hepatocellular carcinoma was 1.45+/-0.07, 2.53+/-0.38 and 5.52+/-1.63, respectively. The difference of mAgNOR between normal and cirrhotic liver, and between cirrhotic liver and hepatocellular carcinoma was statistically significant, respectively(p<0.01). 2) The percentage of nuclei showing five or more AgNORs per nucleus(pAgNOR) was 0.07% in normal liver, 7.59% in cirrhotic liver, and 60.49% in hepatocellular carcinoma. 3) AgNORs in hepatocellular carcinoma were large, pleomorphic and irregularly clumped, in addition to increase of mAgNOR and high pAgNOR. In conclusion, the increase of mAgNOR, high pAgNOR and large, irregular AgNORs are regarded as an additional helpful finding for the histopathological diagnosis of hepatocellular carcinoma.
Carcinoma, Hepatocellular

No abstract available.
Carcinoma, Hepatocellular*

To evaluate the tissue expression rate and pattenr of HBsAg and HBcAg in tumors and peritumoral livers, an immunohistochemical study was undertaken on 47 surgically resected hepatocellular carcinomas(HCCs). The results are as follows. 1. Patient's sera were positive for HBsAg in 40 cases(85.1%). In the remaining 7 cases, the tumor and peritumoral liver expressed neither HBcAg nor HbSaG, suggesting that they were caused by other etiologies than hepatitis B virus. 2. The peritumoral liver had HBsAg and HBcAg in 95.0% and 27.5% among the 40 cases, respectively. But the tumor expressed HBsAg in 50.0% and HBcAg in none. 3. The expression of HBsAg within the tumor and both HBsAg and HBcAg in the peritumoral liver tended to be more frequent in the pretreated cases before surgery. 4. Edmondson-Steiner grade IV tumors revealed a lower expression rate of HBsAg than the low grade tumors(p<0.05). Incases with cirrhosis at peritumoral tissues, HBcAg was less frequently found than in those without cirrhosis. The majority of tissue HBsAg and HBcAg was represented as groups of positive cells. These results suggest that, during the development and progression of HCCs, the HBcAg containing cells are repeatedly removed and the HBcAg negative cells are selected, because cellular expression of HBcAg is the target of host immune response.
Carcinoma, Hepatocellular

Pelioid hepatocellular carcinoma (HCC), a type of atypical HCC, is a rare histologic type of HCC. The radiologic findings of the pelioid HCC is differ from the typical type of HCC. To our knowledge, this case report is the second literature to show the enhancing features of a pelioid HCC on dynamic computed tomography (CT). Here we describe the dynamic CT findings in a case of surgically confirmed pelioid HCC.
Carcinoma, Hepatocellular

Massive hydrothorax is uncommon but well recognized complication of peritoneal dialysis. Possible mechanisms include a disorder of lymphatic drainage, pleuro-peritoneal pressure gradient, and congenital diaphragmatic defects. Hydrothorax in a CAPD patient caused by infiltrative disease or malignancy is very rare. Recently, two cases of hydrothorax in CAPD patients caused by systemic amyloidosis involving diaphragm were reported. However, no case of pleuro-peritoneal communication secondary to HCC infiltrating diaphragm was reported. This case was of a hydrothorax due to HCC in a CAPD patient. We performed video-assited thoracoscopic resection of diaphragmatic mass, diaphragmatic repair and thoracoscopic talc pleurodesis. This case showed that malignancy might be considered as a cause of a hydrothorax in a CAPD patient.
Carcinoma, Hepatocellular