Kikuchi fujimoto disease
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This document summarizes the histopathological features of Kikuchi-Fujimoto Disease (KFD). KFD is characterized by a necrotizing lymphadenitis without neutrophil infiltration, distinguishing it from other diseases that involve lymph nodes. The histopathology of KFD evolves through three stages - proliferative, necrotizing, and xanthomatous - though sequential biopsies are needed to confirm this progression. While the necrotizing form is most common, the stages may represent differences in disease progression or host response. Overall, the document outlines the distinctive pathological features of KFD.
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Siguiente seminario habla de las ultimas pautas de cáncer gástrico en Venezuela. Es realizado por LOUWIS PEREZ, estudiante de la Universidad Experimental Romulo Gallegos (UNERG)de la República Bolivariana de Venezuela, cursante de 5 to año de Medicina, en el Hospital "Victorino Santaella Ruiz".
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Haiku Deck is a presentation tool that allows users to create Haiku style slideshows. The tool encourages users to get started making their own Haiku Deck presentations which can be shared on SlideShare. In just a few sentences, it pitches the idea of using Haiku Deck to easily create visually engaging slideshows.
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A case of epithelioid blue nevus
This case report describes an epithelioid blue nevus (EBN) in a 21-year-old Korean woman. The lesion was a 1 cm bluish nodule on her foot that had slowly grown over 10 years. Histological examination found heavily pigmented epithelioid melanocytes in the dermis and subcutaneous tissue, consistent with EBN. Immunohistochemistry confirmed the melanocytic nature of the cells. EBN is rare and can resemble other pigmented lesions, but this case demonstrated the characteristic features of EBN.
Infiltrating lobular carcinoma of the breast
The document discusses grading and reporting of infiltrating lobular carcinoma of the breast. It states that the Bloom-Scarff-Richardson grading scheme is most widely used, which evaluates tubule formation, nuclear pleomorphism, and mitotic count to determine an overall grade. A grade of I is typical for lobular carcinoma due to the lack of tubule formation but low pleomorphism and mitotic count. The document also provides guidelines for staging, reporting tumor characteristics, margins, and lymph node involvement.
Laryngeal myxoma resembling a laryngeal polyp
1) Laryngeal myxoma is an extremely rare benign tumor originating from mesenchymal cells that is often misdiagnosed as a vocal polyp due to its similar appearance on laryngoscopy.
2) A 61-year-old male patient presented with dysphonia and was found to have a pedunculated polypoid lesion on his left vocal cord, which was surgically excised and determined to be a laryngeal myxoma based on histopathological examination.
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This document summarizes a study analyzing lacrimal sac biopsies from patients with chronic dacryocystitis undergoing dacryocystorhinostomy surgery. The study found that non-specific chronic inflammation with fibrosis was present in all 33 biopsy cases. Gram-positive bacteria were the most commonly isolated microorganisms, found in 59.4% of cases, while gram-negative bacteria were found in 37.5% of cases. The study aims to better understand the pathological changes and potential for specific pathologies in cases of presumed nasolacrimal duct obstruction.Linfangioma progresivo adquirido
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The document discusses the promontory sign, which is seen in angiosarcoma and Kaposi sarcoma tumors, but can also occur in benign vascular proliferations and tumors. It has been reported in reactive vascular proliferations after radiation as well as benign vascular tumors such as common hemangiomas, targetoid hemosiderotic hemangioma, spindle cell hemangioma, lymphangioendothelioma, and retiform hemangioendothelioma. While the promontory sign can be a useful clue for cancers like Kaposi sarcoma, it is not exclusive to malignant vascular tumors as it has also been found in non-cancerous conditions.
Liver Lesion non Sugestive of Malignancy.
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- 1. Kikuchi-fujimoto disease: histopathological and clinical review of a case http://www.medscidiscovery.com/Ar ticlespdfs/V2N2PDF/April.2014Vol.2N o.2p190-92.pdf
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