Carcinosarcoma ; pathology ; Humans ; Stomach Neoplasms ; pathology

Carcinosarcoma is a rare neoplasm that most commonly affects the uterus. In the pancreas, fewer than thirty cases are reported worldwide. We present a 47-year-old female with epigastric pain, and jaundice. Histopathology revealed a pancreatic head mass showing a biphasic tumor composed of seventy percent Pancreatic Ductal Adenocarcinoma, and thirty percent High Grade Sarcoma with immunohistochemistry using Pancytokeratin, Vimentin, Desmin, S-100, Smooth Muscle Actin, CD34, and Ki-67.
Pancreas ; Carcinosarcoma ; Immunohistochemistry ; Pathology, Surgical ; Diagnosis

Carcinosarcoma is a biphasic tumor composed of an intimate admixture of epithelial and mesenchymal element, both of which are malignant. Primary cutaneous cases are extremely rare. There have been reported only 18 cases of cutaneous carcinosarcoma in the world and only one case can be found in the korean pathology literature. Therefore it has been difficult to characterize the clinical course of carcinosarcoma of the skin. We present a further case of primary cutaneous carcinosarcoma in a 86-years-old woman with exophytic and hemorrhagic mass on scalp. Histologic and immunohistochemical studies revealed both squamous cell carcinoma and spindle cell sarcomatoid change intermingled in the same tumor. The clinical and histologic findings of cutanous carcinosarcoma were described.
Carcinoma, Squamous Cell ; Carcinosarcoma* ; Female ; Humans ; Pathology ; Scalp* ; Skin

Carcinosarcoma ; pathology ; Dendritic Cells, Follicular ; pathology ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Parotid Neoplasms ; pathology ; Sarcoma ; pathology

Adult ; Carcinosarcoma ; pathology ; Female ; Heart Neoplasms ; pathology ; Humans ; Lung Neoplasms ; pathology ; Myocardium ; pathology

Sarcomatoid carcinoma is a rare biphasic tumor characterized by a combination of malignant epithelial and mesenchymal cells. We report a rare case of sarcomatoid carcinoma of the colon. A 41-yr-old woman was hospitalized with a history of melena. Total colectomy was performed under the impression of colonic carcinoma. Histologically, the tumor was composed of differentiated adenocarcinoma in superficial portion and sarcomatoid spindle cells in deeper portion with a transitional area between the two portions. The sarcomatous areas revealed polygonal and spindle-shaped anaplastic malignant cells arranged in sheet, short fascicular or haphazard pattern. Immunohistochemically, tumor cells showed a positive immunoreaction for cytokeratin, epithelial membrane antigen, and vimentin. The histopathological and immunohistochemical transitions between the adenocarcinoma area and the spindle cell area suggested that the sarcomatous elements originated from the adenocarcinoma during tumor progression.
Adult ; Carcinosarcoma/chemistry/diagnosis/*pathology ; Case Report ; Colonic Neoplasms/chemistry/diagnosis/*pathology ; Female ; Human ; Immunohistochemistry

Carcinosarcoma ; chemistry ; pathology ; Female ; Humans ; Liver Neoplasms ; chemistry ; pathology ; Middle Aged

Carcinosarcoma of the stomach is regarded as a rare malignant neoplasm composed of both carcinomatous and sarcomatous components in a given tumor. Few cases have been reported since 1904. This is a case of carcinosarcoma of the stomach in a 61-year-old man. He suffered from indigestion, vomiting, and epigastric pain. Endoscopic finding showed a huge protruding mass with intact mucosa on the posterior wall of the antrum up to the pylorus. Surgery was performed and carcinosarcoma with pancreatic invasion was confirmed by pathology.
Carcinosarcoma* ; Dyspepsia ; Humans ; Middle Aged ; Mucous Membrane ; Pathology ; Pylorus ; Stomach ; Vomiting

BACKGROUND: Cutaneous carcinosarcoma is a rare biphasic tumor comprising malignant epithelial and heterologous mesenchymal elements. Data on the clinical and histopathologic characteristics of this tumor in Asian populations are not available. The purpose of this study was to investigate the clinicopathologic and immunohistochemical features of cutaneous carcinosarcoma in the Korean population. METHODS: We retrospectively reviewed the records of 11 patients with cutaneous carcinosarcoma who were diagnosed from 2006 to 2016. RESULTS: The mean patient age at diagnosis was 71.5 years (range, 43–96 years) and there was a men predilection. The most common site of cutaneous carcinosarcoma was the head and neck (8/11, 72.7%). Histopathologically, most tumors showed a characteristic morphology consisting of two types of tumor cells, varied differentiated epithelial cells (such as basal or squamous cells) and spindle cells with transition zones between the two components. These two cell types also demonstrated variable immunohistochemical characteristics. CONCLUSION: Although the number of cases in this study was limited, our results provide valuable insight into the clinical and histopathologic characteristics of cutaneous carcinosarcoma in the Korean population.
Asian Continental Ancestry Group ; Carcinosarcoma* ; Diagnosis ; Epithelial Cells ; Head ; Humans ; Male ; Neck ; Pathology ; Retrospective Studies

Gastric carcinosarcoma is an uncommon biphasic malignant tumor. We report the case of 59-year-old man with a history of melena and dizziness. Endoscopic findings showed a fungating mass that originated from the posterior wall of upper body. Radical total gastrectomy with Roux-en-Y esophagojejunostomy was performed. In the resected specimen, immunohistochemical studies for epithelial and mesenchymal markers showed positive reactions. The mass invaded the submucosa without regional lymph node metastasis. Adjuvant chemotherapy with TS-1 (Taiho Pharmaceutical Co. Ltd, Japan) was performed after surgery despite early clinical stage due to aggressive features of carcinosarcoma.
Carcinosarcoma ; Chemotherapy, Adjuvant ; Dizziness ; Gastrectomy ; Humans ; Lymph Nodes ; Melena ; Middle Aged ; Neoplasm Metastasis ; Pathology ; Prognosis ; Stomach