ABSTRACT
La proliferación vasculara típica mamaria inducida por radioterapia es una proliferación angiomatoide que aparece sobre la piel previamente irradiada por el tratamiento conservador de un carcinomademama. Se presenta el caso de una paciente de 58años que consultó por la aparición de múltiples pápulas purpúricas milimétricas en la mama derecha. Había recibido radioterapia y cuadrantectomía por un carcinoma intraductal 5años antes y estaba medicada con tamoxifeno. El análisis histópatológico e inmunohistoquímico informó: "Proliferación vascular atípica inducida por radiación, variedad atípica inducida por radiación, variedad linfática". Se adoptó una conducta expectante, con seguimiento estrecho.
Atypical vascular proliferation of the breast induced by radiation is an angiomatoid proliferation that appears on previously irradiated skin by the conservative treatament of a breast carcinoma. We present a 58-year-old female patient who consulted for multiple millimeter purpuric papules in the right breast. She received radiotherapy and quadrantectomy for an intraductal carcinoma 5 years before. She is currently on tomoxifen. The histopathology and immunohistochemistry reported atypical vascular proliferation induced by radiation, lymphatic variety. Watchuful waiting is adopted with close monitoring.
Subject(s)
Humans , Female , Middle Aged , Breast Neoplasms , Hemangiosarcoma/diagnosis , Radiation Injuries , Tamoxifen , Neoplasm Metastasis/diagnosisABSTRACT
Abstract Background The human skin is an extremely sophisticated and evolved organ that covers the whole body. External agents or the patient's own diseases can cause skin injuries that can challenge healthcare professionals and impose high social, economic and emotional costs. Objectives To evaluate the impact of topical nifedipine on skin wound healing, specifically on polymorphonuclear cells, vascular proliferation, and collagen. Methods We used three pigs, and created eight injuries in the dorsal region of each animal. We applied 1%, 10%, and 20% concentration nifedipine creams to four of the wounds in animals 1, 2, and 3 respectively and treated the other twelve wounds with saline solution 0.9% only. We analyzed the presence of polymorphonuclear cells, vascular proliferation, and collagen at six different times (days 1, 3, 7, 14, 21, and 28). Results The evaluation of polymorphonuclear levels showed mild cell activity at all times in the control group, while in the nifedipine groups, marked levels were more frequent at all times during the experiment. There was a 4.84-fold increase in the chance of marked vascular proliferation (p = 0.019) and, at the same time, a decrease in collagen formation (OR 0.02 / p = 0.005) in animal 3. Conclusions Topical NFD may have an impact on skin wound healing mechanisms. Our study showed that polymorphonuclear cells and vascular proliferation increased. We also demonstrated that collagen formation decreased. Therefore, topical NFD may have a positive impact on skin wound healing. Additional studies are needed to confirm our results.
Resumo Contexto A pele humana é um órgão extremamente sofisticado e evoluído que cobre todo o corpo. As lesões cutâneas podem ser causadas por agentes externos ou pelas próprias doenças do paciente, e podem representar um desafio para os profissionais de saúde com altos custos sociais, econômicos e emocionais. Objetivos Avaliar o impacto da nifedipina tópica na cicatrização de feridas cutâneas, especialmente em relação a polimorfonucleares, proliferação vascular e colágeno. Métodos Utilizamos três porcos e realizamos oito ferimentos na região dorsal de cada animal. Aplicamos as concentrações de nifedipina creme a 1%, 10% e 20% para os animais 1, 2 e 3, respectivamente, sendo que, em quatro ferimentos, aplicamos o creme e, nos outros quatro ferimentos, apenas soro fisiológico a 0,9%. Analisamos a presença de polimorfonucleares, proliferação vascular e colágeno em seis momentos diferentes (dias 1, 3, 7, 14, 21 e 28). Resultados A avaliação dos níveis polimorfonucleares mostrou atividade celular discreta em todos os momentos no grupo controle, enquanto nos grupos nifedipina, os níveis marcados foram mais frequentes em todos os momentos do experimento. Houve aumento de 4,84 vezes na chance de uma produção marcada (p = 0,019) da proliferação vascular e, ao mesmo tempo, diminuição da formação do colágeno (odds ratio, OR 0,02; p = 0,005) no animal 3. Conclusões A nifedipina tópica pode ter impacto no mecanismo de cicatrização cutânea. Nosso estudo mostrou que há aumento dos polimorfonucleares e da proliferação vascular. Além disso, há diminuição da formação do colágeno. Assim, a nifedipina tópica pode ter impacto positivo na cicatrização das feridas cutâneas. Estudos adicionais são necessários para confirmar nossos resultados.
Subject(s)
Humans , Animals , Skin/injuries , Wound Healing/drug effects , Nifedipine/therapeutic use , Swine , Administration, Cutaneous , Nifedipine/administration & dosage , Collagen/blood , Models, AnimalABSTRACT
Comunicamos un caso de proliferación atípica vascular, en piel irradiada por cáncer de mama en una mujer de 69 años, de nueve años de control evolutivo sin terapia agresiva, sin complicaciones ni recidivas.
A 69 year-old woman with an atypical vascular proliferation due to irradiated brest cancer, are reported. The follow up is of nine years without local recurrences, after the electrodessications of the lesions.
ABSTRACT
Florid vascular proliferation in teratoma is rare morphological presentation. We present a case of mediastinal germ cell tumor masquerading as a vascular neoplasm in a 14-year-old male who presented with right hemithoracic mass. The initial histopathology of resected mass was suggestive of vascular neoplasm. Fine needle aspiration cytology (FNAC) of right axillary mass with immunohistochemistry on cell block was consistent with metastatic mixed germ cell tumor. Repeat extensive sectioning of the resected mediastinal mass showed focal viable tumor with mainly teratomatous component. Further enquiry into the history revealed patient having received prior chemotherapy; this he received in another hospital before being admitted to our hospital for surgical resection of the mass. The florid vascular proliferation may represent postchemotherapy change or a rare component of germ cell tumor possibly resistant to preoperative chemotherapy.
ABSTRACT
Acoustic neurinoma are the most frequent tumors in the region of the cerebellopontine angle. They usually present with a gradual onset of symptoms and slow progression. Development of spontaneous hemorrhage with sudden aggravation of symptoms is rare. The authors present a case of acoustic neurinoma associated with a spontaneous intratumoral hemorrhage. Sudden aggravation of symptoms was noticed. The cranial computed tomography revealed multiple blood-fluid levels within the cysts of the tumor which was located in the region of the right cerebellopontine angle. Operation was performed, which confirmed recent hemorrhage within the tumor. Pathological study revealed a typical neurilemmoma associated with hemorrhage, vascular proliferation and macrophages which phagocytosed hemosiderin pigments. The rare sudden aggravation of symptoms in cases of acoustic neurinoma may suggest hemorrhage.
Subject(s)
Acoustics , Cerebellopontine Angle , Hemorrhage , Hemosiderin , Macrophages , Neurilemmoma , Neuroma, AcousticABSTRACT
To study the effect of vascular proliferation and reconstruction in chronic hepatitis B (CHB), immunohistochemical staining and in situ hybridization were used. The expression of transforming growth factor (TGF-?1) and smooth muscle actin (?-SMA) in livers of CHB were observed. The results showed that TGF-?1 and ?-SMA were related with degeneration of hepatocytes, intrahepatic vascular fibrosis and hepatic sinusoidal capillarization. The expression degree and range of TGF-?1 and ?-SMA increased with the exacerbation of liver lesion. These results suggest that vascular proliferation and reconstruction may play important roles during the process of CHB.