Publications by authors named "Iguaracyra Barreto de Oliveira Araujo"

Article Synopsis
  • The overview discusses the upcoming 5th edition of the WHO Classification of Haematolymphoid Tumours, specifically focusing on lymphoid neoplasms, while myeloid and histiocytic neoplasms will be covered separately.
  • Key changes from the previous 4th edition include a hierarchical reorganization of entities, modifications in their nomenclature, and revisions to diagnostic criteria and subtypes.
  • The new edition will also see the deletion of certain entities, the introduction of new ones, and the inclusion of tumour-like lesions and germline predisposition syndromes related to lymphoid neoplasms.
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Studies using the cell-block technique for bone marrow (BM) analysis are limited in the veterinary literature. This work assessed whether the histopathological analysis of canine BM was feasible using cell-block cytoinclusions prepared from fine-needle sternal aspirate samples. Eight clinically healthy young-to-middle-aged dogs underwent both fine-needle sternal aspiration for BM cell-block (BM-Cb) processing and iliac-crest BM core biopsy (BM-B).

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The pleomorphic adenoma (PA), mucoepidermoid carcinoma (MEC), and adenoid cystic carcinoma (ACC) are common tumors arising from salivary glands whose histopathology is heterogeneous. The sonic hedgehog signaling pathway (Hh) and signal transducer and activator of transcription 3 (STAT3) play important roles in cell proliferation, favoring tumor growth. The aim of this investigation was to study components of the Hh pathway, as well as STAT3 in salivary gland neoplasms in an attempt to add information about the biological characteristics of these neoplasms.

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Purpose: In order to describe epidemiological and pathological features of penile cancer in a high-risk area of Brazil.

Methods: We reviewed the experience (378 patients from 1997 to 2007) of Hospital Aristides Maltez from Salvador, Bahia-the main institution in the state which provides oncologic treatment for penile cancer in the public health system.

Results: The present series showed a high rate (17 %) of patients less than 40 years at the time of diagnosis.

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The aim of this study was to investigate the density of mast cells and microvessels in minor salivary gland tumors. Forty-one cases of minor salivary gland tumors (pleomorphic adenoma, n = 10; adenoid cystic carcinoma, n = 11; mucoepidermoid carcinoma, n = 10; and polymorphous low-grade adenocarcinoma) were investigated using immunohistochemistry for mast cell tryptase and von-Willebrand factor. Density of mast cells was higher in mucoepidermoid carcinoma; however, no differences in the number of these cells were observed between the different types of tumors (p > 0.

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