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6) On CT scan, a PNST appears as a well-defined mass that is hypodense compared with muscle because of the presence of Schwann cells, neural elements, and adipocytes.
Since no histologic patterns specific for a PNST were identified, the immunohistochemical findings were critical in the diagnosis in this case.
In the most recent edition of the WHO International Histological Classification of Tumors of Domestic Animals, benign PNSTs are defined histologically as well-circumscribed dermal or subcutaneous tumors composed of wavy spindle cells arranged in bundles, palisades, and whorls, arising from Schwann cells, perineural fibroblasts, or both.
When the nutritional status at the time of examination, weight loss, reduced intake and the severity of the disease status are evaluated according to ESPEN criteria, NRS, SGNA, PYMS, STRONGkids and PNST are appropriate to evaluate all these criteris (12-14, 16, 20, 21).
This thematic issue focuses primarily on the priority defined by the PNST to bolster VISAT and its integration with the other components of health surveillance, aimed at promoting health and healthy work environments and processes.
O marco legal da PNST coloca um modelo ambicioso de acoes a serem realizadas pela Vigilancia em Saude do Trabalhador (VISAT), cuja efetivacao e o grande desafio atual.
Este numero tematico focaliza, particularmente, a prioridade definida na PNST de fortalecer a VISAT e a sua integracao com os demais componentes da Vigilancia em Saude, com vistas a promocao da saude e de ambientes e processos de trabalho saudaveis.
Pathologic examination of the resected neck tumor and the skin tumor showed a malignant PNST with glandular differentiation and a plexiform neurofibroma, respectively.
Glandular differentiation in PNST is a rare but well-recognized phenomenon.
Excluding case 1 because of insufficient data, we have compared some of the features of these 3 cases with those of glandular PNST as a group, as reviewed by Woodruff and Christensen.
3) Based on morphology and benignancy versus malignancy, they can be subdivided into schwannomas, neurofibromas, and malignant PNSTs.
5-7) Histologic examinations and immunohistochemistry can help to confirm the diagnosis of PNSTs.