scholarly journals Spindle Cell Component in Pleomorphic Carcinoma Showing Polypoid Growth in the Pulmonary Vein

2014 ◽  
Vol 20 (Supplement) ◽  
pp. 639-641
Author(s):  
Mamoru Takahashi ◽  
Tadashi Matsukura ◽  
Yoshiki Shigematsu ◽  
Takashi Hirai
2020 ◽  
Vol 7 (11) ◽  
pp. C164-168
Author(s):  
Anusha Ganapathi ◽  
Thanka J ◽  
Lawrence D'Cruze ◽  
Barathi G ◽  
Natarajan K ◽  
...  

Paratesticular rhabdomyosarcomas (RMS) are very rare malignant tumors arising from the mesenchymal tissues of tunica, epididymis or spermatic cord. They present as painless hard masses in inguinoscrotal region, and large tumors can be mistaken for testicular tumors. They can spread to retroperitoneal lymph nodes or hematogenously metastasize to lung, bones and bone marrow. Here, we report a case of Embryonal RMS with spindle cell component presenting with painless scrotal mass and lung metastasis at initial diagnosis.


2002 ◽  
Vol 126 (4) ◽  
pp. 468-470 ◽  
Author(s):  
Tetsuji Yamamoto ◽  
Rieko Minami ◽  
Chiho Ohbayashi ◽  
Mayumi Inaba

Abstract Epithelioid leiomyosarcoma in the external deep soft tissue is extremely rare. Most epithelioid leiomyosarcomas occur in the uterus. We present a case of epithelioid leiomyosarcoma occurring in the muscle of the thigh of a 78-year-old man. Histologically, the tumor predominantly consisted of round or polygonal cells arranged in sheets with a focal spindle cell component. Immunohistochemical analysis revealed that the tumor cells expressed vimentin, α-smooth muscle actin, and α-sarcomeric actin. The tumor was negative for desmin, S100 protein, glial fibrillary acidic protein, pan-keratin, epithelial membrane antigen, CAM 5.2, HMB-45, leukocyte common antigen, factor VIII–associated antigen, and CD34. Electron microscopically, some tumor cells contained abundant actin-type filaments in their cytoplasm.


2021 ◽  
Vol 156 (Supplement_1) ◽  
pp. S65-S66
Author(s):  
J Khan ◽  
S Guo

Abstract Introduction/Objective Carcino-sarcoma of the pancreas is a rare tumor and very limited clinical and pathologic data have been reported in the literature. As per World Health Organization (WHO) classification of tumors of the digestive system, the carcinosarcoma of the pancreas is classified together with sarcomatoid carcinoma and anaplastic giant cell carcinomas in undifferentiated carcinoma of pancreas. Carcinosarcoma is a rare entity with very poor prognosis. Methods/Case Report Here we report a rare case of pancreatic carcinosarcoma in a 68 year old male patient who underwent a pancreatoduodenectomy for unilocular cystic mass in the head of the pancreas. The mass grossly replaces the whole head of the pancreas. Histologically, the lesion showed a high-grade spindle cell component and adjacent moderately differentiated adenocarcinoma. On immunohistochemical examination, the carcinomatous component was positive for epithelial markers, and the sarcomatous component was positive for DOG1 and had a focal cytoplasmic staining for S-100. The diagnosis of pancreatic carcinosarcoma was rendered. Treatment options are same as of pancreatic carcinoma. Surgical resection is the best option available for patients. Systemic chemotherapy is indicated for patients with distant metastasis or patients with other contraindications. Despite surgery and adjuvant chemotherapy, recurrence rates are high, and prognosis is poor. However, there are no relevant standard chemotherapies available. Based on the limited number of reported cases, the prognosis of carcinosarcoma of the pancreas appears to be poor. But some cases with long term survival have been reported. There are very few primary pancreatic neoplasms with carcinomatous and sarcomatous components reported in the current literature. Results (if a Case Study enter NA) NA Conclusion This case highlights the importance of familiarity with histopathology of this rare entity, and to order proper immunohistochemical and molecular work-up when there is a suspicious abnormal spindle cell component.


2019 ◽  
Vol 46 (6) ◽  
pp. 934-939 ◽  
Author(s):  
Masaru Miyazaki ◽  
Mikiko Aoki ◽  
Kaori Koga ◽  
Makoto Hamasaki ◽  
Yoshikazu Sugiyama ◽  
...  

2013 ◽  
Vol 3 (5) ◽  
pp. 419-421
Author(s):  
S Neupane ◽  
T Pathak ◽  
S Bastola ◽  
S Shrestha ◽  
CB Pun

Primary carcinosarcoma of the lung is exceedingly rare. It is described as malignancy composed of a mixture of carcinoma and sarcoma elements. The sarcomatous element is usually spindle cell but may contain cartilage, bone or skeletal muscle. We report a case of pulmonary carcinosarcoma in a 66 years male who presented with cough, chest pain on exertion, anorexia and weight loss. Brush cytology revealed poorly differentiated non-small cell carcinoma. Histopathological examination showed proliferation of malignant spindle cells containing bone and malignant cartilage admixed with areas of keratinized squamous cells with few foci of ill-defined glandular structure. On immunohistochemistry, carcinomatous component of tumor showed positivity for cytokeratin AE1/AE3 and spindle cell component were positive for vimentin. These findings led to diagnosis of carcinosarcoma. Journal of Pathology of Nepal (2013) Vol. 3, No.1, Issue 5, 419-421 DOI: http://dx.doi.org/10.3126/jpn.v3i5.7873


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