Radiation-associated angiosarcoma of the breast: An international multicenter analysis.

Introduction: Radiation-associated angiosarcoma (RAAS) is a rare and serious complication of breast irradiation. Due to the rarity of the condition, clinical experience is limited and publications on this topic include only retrospective studies or case reports.

Materials And Methods: All patients diagnosed with RAAS between January 2000 and December 2017 in twelve centers across the Czech Republic and Slovakia were evaluated.

Phyllodes tumor and its malignization into invasive ductal carcinoma a case report.

Introduction: Phyllodes tumors of the breast are rare and very distinct types of mammary neoplasms. They are characterized by their biphasicity, i.e.

Preoperative CT for postoperative radiotherapy planning in breast cancer.

Introduction: The exact location of the original tumor should be known for a targeted increase in the dose to the tumor bed after breast cancer surgery. Therefore, at our site, we perform CT examinations of patients in the radiation position before breast cancer surgery.

Methods: Preoperative native CT scans were performed in the patients in the planning position for radiotherapy; these data were fused with standard planning CT for boost irradiation.

Is There a Benefit of HER2-Positive Breast Cancer Subtype Determination in Clinical Practice?

Background: Breast cancer (BC) with increased expression of human epidermal growth factor receptor 2 with tyrosine kinase activity (HER2+) is a clinically and bio-logically heterogeneous dis-ease. In terms of gene expression, there are four major molecular subtypes - Luminal A, Luminal B, HER2-enriched (HER2-E), and Basal-like. The most common subtype is HER2-E (50- 60%).

Increased efficacy of a dose-dense regimen of neoadjuvant chemotherapy in breast carcinoma: a retrospective analysis.

Neoadjuvant chemotherapy is being increasingly used in the treatment of breast carcinoma. We performed a single-center retrospective analysis of the results of neoadjuvant therapy in 376 breast carcinoma patients treated with three different regimens combining doxorubicin and paclitaxel (AT), dose-dense doxorubicin and cyclophosphamide with sequential weekly paclitaxel (DD AC-P), or the combination of trastuzumab with chemotherapy (DD AC-PT). The expression of estrogen receptors (ER), progesterone receptors (PR) and human epidermal growth factor receptor (HER)-2 was determined immunohistochemically.

[Sentinel lymph node examination in breast carcinoma in situ].

Introduction: Breast carcinoma in situ is defined as non-invasive form of carcinoma. However, we can see infiltration of sentinel lymph node even in this disease. The aim of this work was to determine indication criteria for detection of sentinel lymph node in breast carcinoma in situ.

[Spontaneous bilio-cutaneous fistula in cholecystolithiasis].

Spontaneous cholecystocutanea fistula is very rare disorder. The occurrence is very frequent in women above 60 years old. The symptoms of this disorder are nonspecific.

Tumor-infiltrating lymphocytes predict response to neoadjuvant chemotherapy in patients with breast carcinoma.

Tumor-infiltrating leukocytes and other immunohistochemical parameters were evaluated in pretherapeutic biopsies and resection specimens in 73 patients undergoing neoadjuvant chemotherapy with doxorubicin and paclitaxel. Ten patients with pathological complete response had significantly higher p53 expression, CD3(+) lymphocyte and CD83(+) cell counts, and lower progesterone receptor expression. In the remaining 63 patients, a significant decrease in the percentage of Ki-67, vascular endothelial growth factor expression, CD68(+) monocytes, and increased CD31(+), CD34(+), and SMA(+) stromal vessels, maximal CD3(+) and CD56(+) lymphocyte, maximal and mean CD83(+) cell, maximal CD1a(+), and maximal and mean S100(+) cell counts were observed after neoadjuvant chemotherapy.

Expression of bcl-2 in breast cancer: correlation with clinicopathological characteristics and survival.

Breast cancer is the most common malignancy in women. It is an immensely heterogeneous disease, characterised by a broad variety of clinical development. The research in recent years has focused on finding new markers of prognosis.

Pathological complete response after primary chemotherapy in a mother and daughter with hereditary breast carcinoma: two case reports.

The prognosis of patients with BRCA1-related breast carcinomas is inferior to the patients without BRCA1 mutation, but most of these tumors have a so-called triple negative phenotype characterized by increased chemosensitivity. Information regarding the chemosensitivity of BRCA1-related breast carcinomas is limited. We present a case of a mother and daughter with hereditary breast carcinoma treated with primary chemotherapy using the dose-dense combination of doxorubicin and cyclophosphamide and sequential weekly paclitaxel administration.

Survival of patients with colorectal cancer liver metastases treated by regional chemotherapy.

Background/aims: Liver is the most common site of metastatic disease in colorectal cancer. Superior response rate was demonstrated in trials comparing hepatic arterial administration of cytotoxic agents with systemic chemotherapy.

Methodology: Records of 109 consecutive patients with colorectal carcinoma metastatic to the liver treated by regional chemotherapy, who underwent implantation of a port system into hepatic artery or portal vein tributaries between 1991 and 1999, were reviewed and survival was evaluated using the log-rank test and multivariate analysis (Cox's proportional hazard regression).

Regional chemotherapy in patients with breast carcinoma liver metastases.

Background/aims: Although liver is a common site of metastases in breast cancer, isolated liver metastases in patients with disseminated breast cancer are rare. The role of liver-directed therapies in these patients is based on data derived from retrospective analysis of case series.

Methodology: We have reviewed the records of 8 patients with liver metastases and a history of breast cancer treated at our institution over a period of 11 years with regional chemotherapy administered through surgically implanted port systems.

Hepatic arterial infusion chemotherapy in sarcoma liver metastases: a report of 6 cases.

Aims And Background: Liver metastases in patients with sarcoma are rare and associated with a poor prognosis. The experience with liver-directed therapies, eg hepatic arterial infusion, in these patients is limited.

Methods: Six patients with sarcoma metastatic to the liver (4 patients with gastrointestinal stromal tumors and 2 patients with leiomyosarcoma) were treated by hepatic arterial infusion in our center over a 12-year period.

[Mesenchymal extraperitoneal tumors in the elderly].

Incidence rates of solid tumors increase with age in our population. Epithelial tumors are the most frequent tumors of the old age. On the contrary, extraperitoneal mesenchymal tumors are rare.

[Secondary malignant tumors of the mammary gland].

The authors present three case-reviews of rare metastatic affections of the female mammary gland by the following disorders--a malignant lymphoma, a Grawitz carcinoma of the kidney and by a malignant melanoma. Histological examinations of the tumors and restrospective examinations of the respective patients anamneses resulted in the primary focus determination in two cases.

Hepatic arterial infusion chemotherapy in gastric cancer: a report of four cases and analysis of the literature.

Aims And Background: Gastric cancer is associated with high mortality. Although the liver is a common site of metastases in this tumor, the experience with liver-directed therapies is limited.

Methods: We report a single-center experience involving four patients with liver metastases from gastric cancer treated by hepatic arterial infusion (HAI).

[Intraoperative enteroscopy--personal experience from 1995 to 2002].

Authors present their experience with the intraoperative enteroscopy method--an invasive technique of small bowel examination. It is performed under narcosis at an operating theatre (i.e.

Intraluminal high dose rate brachytherapy in the treatment of bile duct and gallbladder carcinomas.

Background/aims: The prognosis of biliary tract carcinomas is poor, and therapeutic efforts are limited mostly only to palliation. The aim of this study was to retrospectively evaluate the effectiveness and tolerability of intraluminal high dose rate brachytherapy in the treatment of bile duct and gallbladder carcinomas.

Methodology: Thirteen patients with bile duct and gallbladder carcinomas were treated by brachytherapy administered through high dose rate remote afterloading system.

Regional chemotherapy in biliary tract cancers--a single institution experience.

Background/aims: The prognosis of biliary tract cancers is poor. The aim of the present report was to analyze retrospectively the effectiveness of regional chemotherapy in patients with biliary tract cancers treated at a single institution.

Methodology: Thirty-two patients with biliary tract cancers, 17 patients with cholangiocarcinoma and 15 patients with gallbladder carcinoma, were treated by regional administration of the chemotherapy, usually the combination of 5-fluorouracil, cisplatin and folinic acid.

Transduodenal intraluminal high dose rate brachytherapy in the treatment of carcinomas of the subhepatic region.

Background/aims: The prognosis of carcinomas of the subhepatic region is poor, and therapeutic efforts are limited mostly to palliation. The aim of this study was to retrospectively evaluate the effectiveness of transduodenal administration of intraluminal high dose rate brachytherapy in the palliative treatment of bile duct and pancreatic head carcinomas.

Methodology: Twelve patients with inoperable bile duct and pancreatic head carcinomas were treated by transduodenal brachytherapy using high dose rate remote afterloading system.

Pegylated liposomal doxorubicin in combination with hyperthermia in the treatment of a case of advanced hepatocellular carcinoma.

Background: Currently, there is no standard treatment of inoperable advanced hepatocellular carcinoma.

Study: A patient with advanced hepatocellular carcinoma was treated with intravenous infusion of pegylated liposomal doxorubicin (PLD, Caelyx) in combination with ultrasound hyperthermia of the liver. Each cycle consisted of infusion of 60 mg of PLD followed by two fractions of hyperthermia 41 degrees C to 43 degrees C for 45 minutes 1 and 48 hours after infusion, respectively.

Pegylated liposomal doxorubicin in combination with hyperthermia for treatment of skin metastases of breast carcinoma: a case report.

Background: Incorporation of doxorubicin hydrochloride into pegylated liposomes (PLD) may decrease chemotherapy side effects and increase the activity. Hyperthermia could further potentiate its effectiveness.

Case Report: A patient with skin metastases of breast carcinoma was treated with intravenous infusion of PLD (Caelyx) in combination with ultrasound hyperthermia.

[Aberrant mammae, personal experience].

The authors present information of a group of 63 patients (60 women and 3 men) treated in 1976-1998 where supernumerous aberrant or accessory mammary gland tissue was found. The diagnosis in the majority of the patients was based on histological examination. The tissue of an aberrant mammary gland is subject to the same physiological influences as the mamma proper and can be affected by the same pathological processes--benign and malignant.

[Activation of the immune system in colorectal carcinoma and its assessment].

The immune system of the patients with colorectal cancer is activated. Urinary neopterin is an index of this systemic immune activation, reflecting the circulating activity of interferon-gamma. We have measured urinary neopterin excretion in 34 patients with colorectal cancer.

Mitogen-induced lymphocyte proliferation and systemic immune activation in cancer patients.

Aims And Background: Proliferative response of lymphocytes to mitogens is known to be decreased in cancer patients. Depressed proliferation of lymphocytes in other disorders has been linked to systemic inflammatory response.

Methods: Lymphocyte proliferation in response to phytohemagglutinin (PHA) and concanavalin A, as well as urinary neopterin, plasma interferon-gamma and interleukin-4, were investigated in 41 patients with solid tumors.