Articles Related to tumors

Background: Limited data on large cohort of patients with malignant tumors of the scalp are available in the literature. The aim of this study was to review a large cohort of patients with malignant scalp tumors to determine epidemilogy, tumor characteristics of this region and treatment. Materials and Method: A retrospective review of patients with malignant scalp tumors diagnosed histopathologically between 2005 and 2021 was performed. Demographic features and tumor characteristics were analyzed. Results: A total of 1080 patients (M: F 3,5:1) were treated and followed up for a mean period of 42 months (12-120 months). Age at diagnosis ranged from 12 to 98 years. Most malignant scalp tumors (95,1%) occurred in those 50 years or older and in bald patients (87%). Basal cell carcinomas (59,2%), squamous cell carcinomas (32,2%) and melanomas were the most common histologic types. Incidence was highest on the frontal of temporal region (66,1%). Recurrence was frequently in squamous and basal cell carcinomas but uncommon in melanoma. Conclusions: Tumors of the scalp accounted about 8,01 % of all skin cancers. Tend to be basal and squamous cell carcinomas, many of which occur in the temporal and frontal region of bald men. The outlook for patients with scalp tumor is positive, although we suggest excision margins of at least 3-4 mm and continued clinical vigilance is warranted given their higher recurrence rates.

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Multiple primary parotid gland tumors are rare, accounting for 1.7-5% of all parotid neoplasms, and the occurrence of bilateral parotid gland tumors is even lower (1.3-3.5%). These tumors can be synchronous or metachronous and the most common histologic type of bilateral parotid gland tumors is Warthin tumor (79.2-90%). Combined benign and malignant lesions and bilateral neoplasms of different histologic types are even less frequently found.

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Tumors located in the parapharyngeal space are rare. They account for 0.5% of the whole tumors of the head and neck. Benign neoplasms are the most common with a rate of 70 to 80%, 40 to 50% originate in the salivary glands ; half of them are represented by the pleomorphic adenoma. We report the case of 38 old-year woman with in which the diagnosis of parapharyngeal space was made. The patient underwent a complete removal of the mass. The histological exam revealed a pleomorphic adenoma. No postoperative complications.

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ImagingIntroductionMR contrast media have become an indispensable part of magnetic resonance (MR) imaging, but their roles in ablation therapies are still controversial. The interactions between physical/biological properties of MR contrast media (Longitudinal=T1, transverse=T2 and susceptibility=T2* relaxation times) and diseased tissues (perfusion, edema, hemorrhage and coagulative necrosis) play important roles in differentiating pathologic and ablated tissues.

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Neuroendocrine neoplasms are defined as epithelial neoplasms with predominant neuroendocrine differentiation. They are most commonly found in the gastrointestinal tract and respiratory system.

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The treatment of resectable stages of esophageal cancer often involves pre-operative concurrent chemoradiotherapy. This study aims to evaluate the effect of cisplatin/5-fluorouracil (5-FU)-based neoadjuvant chemoradiotherapy on pathologic stage and survival in patients with locally advanced esophageal cancer.

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Sudden death has varied causes, and autopsy is usually required to determine cause of death. Sarcoma involvement is very infrequent, and detailed pathological evaluation is needed for correct diagnosis.

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Schwannoma is a benign tumor that originates from the presence of Schwann cells of the peripheral nerves. They are usually asymptomatic, do not recur, and malignant transformation is rare.

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Hypoglossal schwannomas are rare cranial base neoplasm arising from schwann cells of the XIIth cranial nerve. We report a case of 45 year old lady with history of headache for 2 years and difficulty in swallowing for 1 year. On evaluation, she was found to have left hypoglossal paresis, atrophy of tongue muscles on left side and a smooth oropharyngeal bulge on left side.

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We would like to present two patients with triple localized, synchronous colon tumors who underwent emergency operations for obstruction. The second and third localizations were discovered during the operation.

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Tissue cytokine levels (IL-1β, TNF-α and IL-10) have been utilized for screening, diagnosis, prognostication and treatment of tumors. The current study, therefore, purports to measure the levels of common cancer associated cytokines in histopathologically confirmed tissue samples of eyelid tumors.

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This review focuses on imaging, visualization and detection of diseases using nanoprobes. Several currently available nanoprobes such as fluorescent nanoprobes, upconversion nanoparticle probes, supermagnetic iron oxide nanoprobes, and polymer- and liposome based nanoprobes are discussed.

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An epidemiologic data pool was formed from cases of SCT submitted as surgical specimens to a Reference Pathology Laboratory serving the Igbo Ethnic Group in South-Eastern Nigeria.

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We report on a nine-month-old girl who presented with persisting cough, and diminished ventilation of the left hemithorax. Viral pneumonia was suspected after Adenovirus detection by PCR, but chest X-rays showed a persistent shadowing of the left hemithorax and persistent coughing despite clinical improvement. Because of the discrepancy between clinical and radiological signs further investigations by ultrasound and CT scan were performed, which visualized an intrathroracic tumor. Histopathology confirmed diagnosis of a teratoma.

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The first patient was a 77 year old man who had been on abiraterone for 12 months before his phosphorous was checked. At that point, it was 0.6 mg/dl, which is severely decreased. A full work up for hypophosphatemia showed normal parathyroid hormone and 25-hydroxyvitamin D. A urine study showed inappropriate excretion of phosphorous along with aminoaciduria and normoglycemic glucosuria.

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