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1.
J Hand Surg Am ; 43(5): 492.e1-492.e5, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29728214

RESUMO

Several technical modifications have been described to avoid complications of venous flaps. The authors describe a technical variation of the venous flap to reduce the risk of venous congestion and the likelihood of shunting, thus increasing venous flap reliability.


Assuntos
Traumatismos dos Dedos/cirurgia , Retalhos de Tecido Biológico/irrigação sanguínea , Fluxo Sanguíneo Regional , Veias/transplante , Anticoagulantes/uso terapêutico , Sobrevivência de Enxerto , Humanos , Masculino , Cuidados Pós-Operatórios , Complicações Pós-Operatórias/prevenção & controle , Adulto Jovem
2.
Physiol Res ; 66(4): 663-671, 2017 09 22.
Artigo em Inglês | MEDLINE | ID: mdl-28406706

RESUMO

Different strategies have been developed in the last decade to obtain fat grafts as rich as possible of mesenchymal stem cells, so exploiting their regenerative potential. Recently, a new kind of fat grafting, called "nanofat", has been obtained after several steps of fat emulsification and filtration. The final liquid suspension, virtually devoid of mature adipocytes, would improve tissue repair because of the presence of adipose mesenchymal stem cells (ASCs). However, since it is probable that many ASCs may be lost in the numerous phases of this procedure, we describe here a novel version of fat grafting, which we call "nanofat 2.0", likely richer in ASCs, obtained avoiding the final phases of the nanofat protocol. The viability, the density and proliferation rate of ASCs in nanofat 2.0 sample were compared with samples of nanofat and simple lipoaspirate. Although the density of ASCs was initially higher in lipoaspirate sample, the higher proliferation rate of cells in nanofat 2.0 virtually filled the gap within 8 days. By contrast, the density of ASCs in nanofat sample was the poorest at any time. Results show that nanofat 2.0 emulsion is considerably rich in stem cells, featuring a marked proliferation capability.


Assuntos
Adipócitos/fisiologia , Tecido Adiposo/citologia , Tecido Adiposo/fisiologia , Células-Tronco Mesenquimais/fisiologia , Gordura Abdominal/citologia , Gordura Abdominal/fisiologia , Adulto , Proliferação de Células/fisiologia , Células Cultivadas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transplantes
3.
G Chir ; 32(6-7): 323-5, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21771401

RESUMO

Primary mucinous carcinoma of the skin (MCS) is a rare neoplasia described for the first time by Lennox et al. in 1952 and formally reviewed by Mendoza and Helwing in 1971. It is an uncommon subtype of sweat gland tumor. MCS affects men (58,8%) more than women (41,2%). It tends to occur in more elderly individuals (average 62,6 years, range 8-87 years), although the disease has been reported in a patient as young as 8 years old. In the english Literature are described 100 case of MCS. MCS has a varied clinical onset, tipically presenting as an asymptomatic, slow-growning, painless, papular or nodular, subcutaneous or cutaneous, ranging from 5 mm to 120 mm. The lesion is frequently single and isolated red, pink, gray, blue or purple coulored. Telangiectasia may or not be present. The surface may be smooth, ulcerated or crusted. Local recurrence occurs frequently (29,4%) after conventional excision, but the rate of distant metastasis is low (9,6%). In fact this tumour is tipically avascular, a factor that help to explain its low rate of metastasis. In September 2007, a 69 year old white man was referred to our observation for the evaluation of a painless, superficial nodular mass in left cheek that had slowly grown over 1 year to 2x1,4 cm current measures. The lesion was excised. Microscopic examination revealed a mucinous cutaneous carcinoma of the skin. Investigations for a primary visceral malignancy, including CT total body and colonoscopy, were negative.


Assuntos
Adenocarcinoma Mucinoso , Bochecha , Neoplasias Faciais , Neoplasias Cutâneas , Adenocarcinoma Mucinoso/patologia , Adenocarcinoma Mucinoso/cirurgia , Idoso , Neoplasias Faciais/patologia , Neoplasias Faciais/cirurgia , Humanos , Masculino , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/cirurgia
5.
G Chir ; 31(11-12): 543-8, 2010.
Artigo em Italiano | MEDLINE | ID: mdl-21232201

RESUMO

Neurofibromatosis 1 is an autosomal dominant disease with an estimated incidence 1:2500 to 1:3000 live newborns. The disease presents with multiple cutaneous and non cutaneous lesions. NF1 occurs with equal frequency in males and females and has been identified in all ethnic group. The morbidity and the mortality caused by NF1 are the result of complications that may involve any of the body systems. This disease has been linked with mutations of the NF1 gene which encodes tumor suppressor neurofibromin. At least half of patients with NF1 will have only cutaneous involvement that is not considered to be a major medical problem, even though it can be a source of psychologic burden as a result of cosmetic disfigurement. The cardinal features of the disorder are cafè-au-lait spots, axillary freckling, cutaneous neurofibromas and Lisch nodules, but there are a lot of wide variety of complications affecting almost every system of the body, including the eyes (optic glioma), the nervous system (intracranial tumors), the skeleton (short stature, scoliosis), the endocrine and cardiovascular system (hypertension). Manifestations of NF1 vary at different times in an individual's life. Substantial variability exists among affected members of a single family. This variability confounds clinical management and the severity of the disease cannot be predicted. We present a case in young woman 24 years-old treated by reiterative plastic surgery.


Assuntos
Nádegas/cirurgia , Neoplasias Musculares/cirurgia , Neurofibromatose 1/cirurgia , Nádegas/patologia , Feminino , Humanos , Neoplasias Musculares/genética , Neoplasias Musculares/patologia , Neurofibromatose 1/genética , Neurofibromatose 1/patologia , Satisfação do Paciente , Procedimentos de Cirurgia Plástica , Resultado do Tratamento , Adulto Jovem
6.
Pediatr Med Chir ; 31(3): 126-9, 2009.
Artigo em Italiano | MEDLINE | ID: mdl-19739492

RESUMO

Xeroderma Pigmentosum is a rare autosomal recessive disease characterized by marked sensitivity to ultraviolet radiation that leads to the development of multiple skin malignancies. We report a 4 years-old girl with Xeroderma Pigmentosum who, admitted to our cares, presented a squamous cell carcinoma of the upper lip. The rarity of the squamous cell carcinoma together to the very young age of the patient lead us to report our experience.


Assuntos
Carcinoma de Células Escamosas/etiologia , Neoplasias Labiais/etiologia , Neoplasias Cutâneas/etiologia , Xeroderma Pigmentoso/complicações , Carcinoma de Células Escamosas/cirurgia , Pré-Escolar , Feminino , Seguimentos , Humanos , Neoplasias Labiais/cirurgia , Neoplasias Cutâneas/cirurgia , Fatores de Tempo , Resultado do Tratamento
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