RESUMO
Synovial sarcoma arising in the foot is a rare finding. We report a 64-year-old female with synovial sarcoma involving the calcaneus and central plantar compartment. The patient presented with a 2-year history of painful heel with soft tissue mass presentation 21 months after initial pain. We performed an incisional biopsy with frozen section; histopathology was consistent with synovial sarcoma.
Assuntos
Calcâneo/patologia , Sarcoma Sinovial/diagnóstico , Neoplasias de Tecidos Moles/diagnóstico , Analgésicos/administração & dosagem , Biópsia , Feminino , Pé , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/secundário , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Invasividade Neoplásica , Sarcoma Sinovial/tratamento farmacológico , Neoplasias de Tecidos Moles/tratamento farmacológicoRESUMO
The Canadian horticultural peat industry generates carbon emissions through various methods of peat extraction, processing, and land-use changes. This study provides a carbon emissions analysis comparing the traditional vacuum harvest (VH) and block-cut (BC) extraction techniques to a new acrotelm transplant (AT) method that restores natural peatland function by preserving and replacing the surface layer vegetation as part of the extraction process. The relative global warming potential for each extraction method was determined by estimating carbon dioxide (CO2) and methane exchange for each phase of peat extraction, including emissions from land-use change and machinery fuel consumption. Preliminary findings, based on 1 y of measurements, indicate that the AT technique has the lowest annual carbon emissions compared to the VH and BC methods. Projected total carbon emissions from a 75-ha peatland after 50 y of extraction using the AT technique produced a sink of approximately 3300 t CO2 equivalents (CO2-e). This represents a marked reduction in total carbon emissions estimated for the VH (19 000 t CO2-e) and BC (29 000 t CO2-e) extraction techniques. This analysis suggests that the AT method reestablishes peat accumulation and peatland carbon storage function more effectively than the VH and BC methods, which are associated with delayed restoration efforts. Consequently, the AT technique has the potential to greatly reduce the carbon footprint of the Canadian horticultural peat industry.