RESUMO
Cervicofacial actinomycosis being one of the unusual infections is of high relevance to a head and neck onco-surgeon. As the diagnosis may be made difficult by its nature to mimic malignancy and egregiously low culture sensitivity, the differential diagnosis for a lesion appearing to be malignant after irradiation does not usually include actinomycotic infection. Treatment usually requires a long-term antibiotic course after confirmation with histopathology, albeit surgical debridement is required in selective cases. Here we report two cases that were clinico-radiologically diagnosed as osteoradionecrosis and histopathological analysis done to rule out cancer recurrence. Unanticipated, they turned out to be cervicofacial actinomycosis, subsequently treated with long-term antibiotics following which the infection subsided.
RESUMO
Sarcomatoid carcinoma is a highgrade rare malignant tumor with both epithelial and mesenchymal components. Sarcomatoid carcinoma in the upper urinary tract is very rare. We reported here a case of sarcomatoid carcinoma of renal pelvis with osteosarcomatous differentiation, with involvement of the ureter and renal parenchyma in a 68-year-old female. Histologically, predominant pleomorphic spindle cell sarcoma component with osteoid production and urothelial carcinoma component with in situ areas were identified. Immunohistochemical analysis showed vimentin positivity in sarcomatous component and cytokeratin positivity in carcinomatous component.
RESUMO
Malignant mesothelioma of pleura is a locally aggressive rare neoplasm of mesothelial cells, which produces distant metastasis in advanced stages of its course. It is exceptional for patients to present with metastasis prior to the detection of primary tumor in the pleura. Here, we report a case of malignant mesothelioma of pleura in a 65-year-old quarry worker where the initial diagnosis was offered by fine needle aspiration of an enlarged supraclavicular lymph node. Subsequent pleural fine needle aspiration cytology (FNAC), tumor biopsy, and immunohistochemical analysis confirmed the diagnosis.
RESUMO
Surface epithelial tumors account for more than 90% of ovarian tumors, of which serous tumors comprise 46%. Sex-cord stromal tumors constitute 8% of ovarian tumors, fibroma being the commonest, comprising 70% in this category. Combination of different types of tumors can occur in ovary with most common being Mucinous cystadenoma and Brenner tumour. We report a case of a very rare combination of ovarian tumour-Fibroma with Serous cystadenoma of the ovary. This combination is not mentioned in any standard textbooks or reference books of gynaecologic pathology. Extensive search of the English Literature showed only one reported case with this combination of ovarian tumors. To the best of our knowledge, this is the second case to be reported in English Literature.
