Mustafa Fuat Açikalin

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The authors present the case of a 6-month-old infant with a cavernous hemangioma of the parietal bone and discuss the radiological, operative, and pathological features and differential diagnosis of these extremely rare lesions in infants. Only 1 case of an infant with a calvarial cavernous hemangioma without intracranial invasion has previously been(More)
BACKGROUND Tumour angiogenesis is essential for the growth, invasion and metastasis of solid tumours. There are several lines of evidence that the mast cells play an important role in tumour angiogenesis. AIMS The study focused to determine the correlation between the microvessel and mast cell densities, and to evaluate whether tumour angiogenesis and(More)
Central nervous system hemangioblastoma is a histologically benign tumor that usually occurs in the cerebellum. Supratentorial hemangioblastomas are exceedingly rare tumors. We present a case of cerebral hemangioblastoma, review the literature on supratentorial hemangioblastoma, and discuss the histologic characteristics and diagnostic difficulties(More)
Sarcomatoid transitional cell carcinoma is a rare entity, in which a malignant, overtly epithelial component coexists with areas having a sarcoma-like appearance. Histological distinction of sarcomatoid carcinomas from carcinosarcomas is often difficult and immunohistochemistry is a helpful diagnostic adjunct in the correct diagnosis. In the present report,(More)
Myoepitheliomas of salivary glands are rare neoplasms, accounting for less than 1% of all salivary gland tumors. They are classified into four cell types: epithelioid, spindle, clear, and plasmacytoid. Among them, the plasmacytoid cell type appears to have a predilection for the oral cavity, especially the palate. We presented a 32-year-old man with(More)
BACKGROUND Metastasis of extragenital neoplasms to an endometrial polyp is rare and until now, only 6 cases of such involvement has been described. CASE A 58-year-old woman, who had been diagnosed 4 years ago with infiltrating ductal breast carcinoma and treated with surgery and tamoxifen therapy, was admitted to the gynecology clinic because of(More)
The aim of this study was to determine the prognostic value of Ki-67 immunostaining in laryngeal squamous cell carcinomas. Ki-67 labeling was quantified in 63 laryngeal squamous cell carcinomas by counting at least 1,000 tumor cells in the most immunoreactive area in each sample, and the Ki-67 labeling index was calculated as a percentage. The antigen(More)
Epithelioid angiomyolipoma is a recently recognized variant of angiomyolipoma, which is characterized by the presence of polygonal cells with densely eosinophilic cytoplasm and varying degrees of nuclear atypia. Only a relatively small number of cases of epithelioid angiomyolipoma of the kidney have been reported in the literature. We report a case of(More)
The aim of this study was to review and reappraise the clinical and CT features of malignant peritoneal mesothelioma (MPM), and to discuss differential diagnosis. The history, clinical, and laboratory data, and imaging studies of 11 patients with a histologically proven diagnosis of MPM, were retrospectively reviewed. Our patients consisted of 7 women and 4(More)
A malignant myoepithelioma is one of the rarest salivary gland neoplasms which may either arise de novo or develop within a preexisting pleomorphic adenoma or benign myoepithelioma. The parotid gland is the most common primary site and the palate the most common intra-oral site of occurrence. Herein is present a case of a malignant myoepithelioma arising in(More)