aplasia

再生
  • 文章类型: Case Reports
    MRKH综合征,或者Mayer-Rokitansky-Küster-Hauser综合征,一种罕见的先天性疾病,表现为子宫和阴道上三分之二的完全或部分发育不全,外生殖器正常,卵巢正常。Mayer-Rokitansky-Küster-Hauser综合征可以孤立地发生(I型),也可以与影响肾脏的其他先天性外生殖器畸形一起发生,骷髅,心,眼睛,或听觉系统(II型)。Mayer-Rokitansky-Küster-Hauser综合征的诊断通常依赖于影像学检查,以经腹部超声检查为主要方式。然而,磁共振成像被认为是详细评估内生殖器解剖结构的金标准。我们介绍了一名18岁女性,没有任何明显的病史,表现出原发性闭经。在盆腔超声检查中怀疑Mayer-Rokitansky-Küster-Hauser综合征II型,随后通过磁共振成像证实。为患者提供了心理援助,并计划进行阴道成形术。
    MRKH syndrome, or Mayer-Rokitansky-Küster-Hauser syndrome, a rare congenital disease, manifests as a complete or partial aplasia of the uterus and the vagina\'s upper two-thirds with normal external genitalia and functioning ovaries. Mayer-Rokitansky-Küster-Hauser syndrome can occur in isolation (type I) or in conjunction with other congenital extragenital deformities affecting the kidneys, skeleton, heart, eyes, or auditory system (type II). The diagnosis of Mayer-Rokitansky-Küster-Hauser syndrome typically relies on imaging studies, with transabdominal ultrasonography serving as the primary modality. However, magnetic resonance imaging is considered the gold standard for detailed assessment of internal genital anatomy. We present the case of an 18-year-old woman without any notable medical history who exhibited primary amenorrhea. Mayer-Rokitansky-Küster-Hauser syndrome type II was suspected on pelvic ultrasound and subsequently confirmed via magnetic resonance imaging. The patient was provided with psychological assistance and planned for vaginoplasty.
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  • 文章类型: Case Reports
    背景:孤立性髌骨发育不全是一种非常罕见的常染色体显性遗传病。其治疗取决于可能差异很大的临床表现。缺乏积极的延伸,这可能是由于膝盖不稳定而经常跌倒的原因,是最常见和致残的表现。我们报告了一种原始技术,该技术是对Galeazzi技术的改进,用于在PTLAH的情况下使the骨反复脱位以获得主动延伸。
    方法:一名7岁的白人男孩,患有孤立性髌骨发育不全和右膝伸展滞后,已通过改良的Galeazzi技术治疗。已收获了半腱肌和gra肌的肌腱,并且它们的远端插入保持完整。将两个肌腱固定在髌骨顶部以恢复膝关节主动伸展。经过6年的随访,患者无症状,并且膝关节的手术能力很强。
    结论:改良Galeazzi手术重建孤立性髌骨发育不全是一种安全可靠的技术,适用于骨骼未成熟患者,可提供令人满意的长期结果。
    BACKGROUND: Isolated Patellar Aplasia Hypoplasia is a very rare autosomal dominant disorder. Its treatment depends on the clinical manifestations that can vary widely. The lack of active extension, which can be responsible for frequent falls due to a knee instability, is the most frequent and disabling manifestation. We report an original technique that is a modification of the Galeazzi technique for recurrent dislocation of the patella to gain active extension in case of PTLAH.
    METHODS: A 7-year-old Caucasian boy with isolated Patellar Aplasia Hypoplasia and an extension lag of the right knee has been treated by a modified Galeazzi technique. The tendons of the semi-tendinous and gracilis muscles have been harvested and their distal insertion was kept intact. Both tendons were fixed over the top of the patella to restore knee active extension. After 6 years of follow up the patient is symptom free with a strong active extension of the operated knee.
    CONCLUSIONS: Reconstruction of isolated hypoplasia of the patella by a modified Galeazzi procedure is a safe and reliable technique for skeletally immature patients offering satisfying long-term outcomes.
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  • 文章类型: Case Reports
    腮腺的双侧变异是解剖学上罕见的实体。在这项研究中,我们介绍了一个91岁的女性尸体,面部左侧腮腺发育不全,右侧腮腺发育不全。两侧副腮腺大小正常,而双侧颌下腺被发现大于正常。腮腺的手术解剖非常重要,因为面部的该区域是一个复杂的结构,与重要的血管和神经交织在一起。患有发育不全的患者,闭锁,发育不良,或腮腺发育不全应及早诊断,并必须计划适当的治疗。因此,发现该病例在腮腺发育不全和发育不全并存方面是显着的。
    Bilateral variation of the parotid gland is an anatomically rare entity. In this study, we present a 91-year-old female cadaver with aplasia of the parotid gland on the left side of the face and hypoplasia of the parotid gland on the right side of the face. The accessory parotid glands on both sides were of normal size, while bilateral submandibular glands were found to be larger than normal. The surgical anatomy of the parotid gland is very important because this region of the face is a complex structure intertwined with important vessels and nerves. Patients with aplasia, atresia, agenesis, or hypoplasia of the parotid gland should be diagnosed early and proper treatment must be planned. Consequently, this case was found to be remarkable in terms of the coexistence of parotid gland aplasia and hypoplasia.
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  • 文章类型: Case Reports
    未经批准:唾液腺发育不全,部分或涉及所有主要和可能的次要唾液腺,是一个非常罕见的原因。此病例报告的目的是介绍一例主要和次要唾液腺发育不全的病例,并讨论相关文献。
    未经授权:一个23岁的女人,由于龋齿猖獗,患者有非缴费型病史和家族史,这不能归因于任何明显的病因。没有干燥症状,曾报告腮腺肿胀或一般症状.临床上,观察到口腔粘膜干燥,牙齿糜烂和龋齿,而腮腺和颌下腺的排泄管口不明显。未刺激和受刺激的唾液流速严重下降,而下唇的诊断性活检显示缺少少量唾液腺。详细的血液学和免疫学检查以排除全身性疾病也在正常范围内。超声和磁共振成像显示所有主要唾液腺的缺失,确认唾液腺先天性发育不全的临床诊断。
    UNASSIGNED:给予口腔卫生指导和饮食建议,同时给予含有氟化物和唾液替代品的牙科产品,并实施适当的牙科治疗。还建议定期进行牙科随访。
    未经证实:及时诊断唾液腺发育不全很重要,考虑到唾液缺乏对口腔健康的有害影响。管理包括使用唾液替代品,营养适应,维护口腔健康和定期牙科随访。
    UNASSIGNED: Aplasia of the salivary glands, either partial or involving all the major and possibly the minor salivary glands, is a very rare cause of hyposalivation. The aim of this case report is to present a case of aplasia of the major and minor salivary glands and discuss the relevant literature.
    UNASSIGNED: A 23-year-old woman, with a non-contributory medical and family history was referred due to rampant caries, that could not be attributed to any obvious aetiology. No sicca symptoms, previous parotid gland swelling or general symptoms were reported. Clinically, oral mucosa dryness and extended dental erosions and caries were observed, while the orifices of the excretory ducts of the parotid and submandibular salivary glands were not evident. Unstimulated and stimulated saliva flow rates were severely diminished, while a diagnostic biopsy of the lower lip revealed absence of minor salivary glands. Detailed hematologic and immunological investigations to exclude systemic disorders were also within normal limits. Ultrasound and magnetic resonance imaging revealed the absence of all major salivary glands, confirming the clinical diagnosis of congenital aplasia of the salivary glands.
    UNASSIGNED: Oral hygiene instructions and dietary advice were given while dental products with fluoride and saliva substitutes were administered and appropriate dental treatment was implemented. Regular dental follow-up was also advised.
    UNASSIGNED: Timely diagnosis of aplasia of the salivary glands is important, considering the detrimental effects of the absence of saliva on oral health. Management consists of the use of saliva substitutes, nutritional adaptation, maintenance of oral health and regular dental follow-ups.
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    文章类型: Case Reports
    主要唾液腺的先天性缺失,尤其是颌下腺,是一种罕见的情况。虽然发育不全的病因尚不清楚,它被认为是由于早期胎儿发育中出现的缺陷而发生的。一个或多个主要唾液腺的发育不全可能单独发生或与其他先天性异常有关。文献中很少报道双侧下颌下腺发育不全的病例。患有这种疾病的患者可以是有症状的或无症状的。由于存在额外异常的可能性,患者及其家属应仔细评估。我们介绍了偶然发现的双侧下颌下腺发育不全的超声和计算机断层扫描结果。还对主要唾液腺发育不全的文献进行了综述。
    The congenital absence of major salivary glands, particularly the submandibular gland, is a rare condition. Although the etiology of aplasia is unknown, it is thought to occur owing to defects that emerge during early fetal development. Agenesis of 1 or more of the major salivary glands may occur alone or in association with other congenital anomalies. Very few cases of bilateral submandibular gland aplasia have been reported in the literature. Patients with this condition can be either symptomatic or asymptomatic. Due to the probability of there being additional anomalies, patients and their families should be carefully evaluated. We present the ultrasound and computed tomography findings for a case of bilateral submandibular gland aplasia that was detected incidentally. A review of the literature on major salivary gland aplasia was also conducted.
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  • 文章类型: Case Reports
    目的:我们的目的是调查双侧大脑前动脉(ACA)发育不全的病例。
    方法:在放大镜下对388例尸体的目标人脑动脉进行宏观和显微解剖。每个案件都被拍照,并在工作簿中图解表示。使用计算机软件程序测量照片上相应动脉的长度和外径。
    结果:只有1例(1/388或0.25%)双侧ACA发育不全属于男性成年尸体。除一侧后交通动脉和基底动脉的变化外,在这种情况下,没有记录脑病理学的实例。我们将最近的病例与现有的文献病例进行了比较。
    结论:总结少量文献案例,最近发现的双侧ACA发育不全病例是迄今为止发现的第五例,代表真正的形态稀有性。
    OBJECTIVE: Our goal was to investigate the cases of bilateral aplasia of the anterior cerebral artery (ACA).
    METHODS: The macro- and microdissection of the target human brain arteries of 388 cadaveric cases was applied under the magnifying glass. Each case was photographed and diagrammatically represented in the workbook. The length and the outer diameter of the corresponding arteries on the photos were measured using a computer software program.
    RESULTS: There was only one case (1/388 or 0.25%) of bilateral ACA aplasia that belonged to a male adult cadaver. Except for the variations of the posterior communicating artery on one side and the basilar artery, the instance of cerebral pathology was not recorded in this case. We compared the recent case with available literature cases.
    CONCLUSIONS: Summarizing small number of literature cases, the recent case of bilateral ACA aplasia as the fifth case discovered so far, represents a true morphological rarity.
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  • 文章类型: Case Reports
    背景:下外侧软骨的先天性异常非常罕见。手术前难以检测可能会在手术期间引起问题。在本文中,我们提出了一种独特的畸形,包括下外侧软骨的再生障碍性和发育不全。
    方法:本研究纳入一名21岁女性患者,她接受了隆鼻手术。气道损伤,突出的鼻驼峰,在体格检查中观察到下垂的鼻尖和鼻孔不对称。
    结果:发现右侧小叶部分发育不全和发育不全,左侧小叶中部发育不全。两侧均观察到内侧小腿的小脑段和足板段发育不全。此外,腿间软组织体积较低。用间隔软骨移植物重建有缺陷的内侧小腿。
    结论:虽然罕见,对先天性下软骨异常的认识对于手术计划和畸形的重建很重要。软骨组织反射到皮肤表面和每个尖端段的检查对于术前检测异常至关重要。
    方法:4(治疗)。
    BACKGROUND: Congenital anomalies of lower lateral cartilages are very rare. Difficulties to detect before the operation may cause problems during the surgery. In this paper, we presented a unique deformity with the combination of aplastic and hypoplastic segments of lower lateral cartilage.
    METHODS: A 21-year-old female patient who underwent rhinoplasty were enrolled in this study. Airway impairment, prominent nasal hump, droopy nasal tip and nostril asymmetries were observed in physical examination.
    RESULTS: Partial aplasia and hypoplasia on the right-sided lobular segment and hypoplasia on the left-sided lobular segment of the middle crus were detected. Hypoplasia of the columellar segment and footplate segment of the medial crus was observed on both sides. Also, intercrural soft tissue volume was low. Defective medial crus was reconstructed with the septal cartilage graft.
    CONCLUSIONS: Although a rare occurrence, awareness of congenital lower cartilage anomalies is important for surgical planning and reconstruction of deformities. Cartilage tissue reflection to the skin surface and examination of each tip segment is crucial to detect anomalies preoperatively.
    METHODS: 4 (Therapeutic).
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  • 文章类型: Case Reports
    尽管由于急性髓细胞白血病的预处理化疗而导致严重的免疫抑制,COVID-19没有导致临床恶化或死亡,因此提出了免疫抑制治疗对临床病程演变的影响的问题。
    Despite severe immunosuppression due to conditioning chemotherapy for acute myeloid leukemia, COVID-19 did not lead to clinical deterioration or death, thus raising the question of the impact of immunosuppressive treatment on clinical course evolution.
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  • 文章类型: Case Reports
    Kartagener\'s syndrome (KS), characterized by a triad of bronchiectasis, chronic sinusitis, and situs inversus, is a subset of an autosomal recessive hereditary disorder of primary ciliary dyskinesia. We report the case of a 35-year-old male who presented with a history of intermittent episodes of productive cough, breathlessness, and cold since childhood. High resolution computed tomography of chest revealed bronchiectatic changes, dextrocardia, and right-sided aortic arch. Computed tomography (CT) scan of the abdomen revealed situs inversus. CT of the paranasal sinuses revealed combined aplasia of bilateral frontal and sphenoid sinus with sinusitis. Based on these findings, a diagnosis of KS was made. There was no complaint of infertility, which usually accompanies KS, even though an analysis of his seminal fluid revealed reduced count and reduced motility of sperms. The uniqueness of our case is that our patient was a male aged 35 years; besides, the third decade is an unusual age for presentation of combined aplasia/agenesis of bilateral frontal and sphenoid sinuses with hypoplasia of maxillary and ethmoid sinuses. Even though these findings have been reported in children and young adults, there are very few case reports of such a presentation in adults in literature.
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  • 文章类型: Journal Article
    OBJECTIVE: To assess the frequency of frontal sinus aplasia using computed tomography (CT) of the paranasal sinus among Saudi Arabian population.
    METHODS: A retrospective case review of medical records from January 2019 to December 2019 in the Otorhinolaryngology Department, King Abdulaziz University, Riyadh, Saudi Arabia.
    RESULTS: A total of 449 cases were reviewed. The incidence of bilateral frontal sinus aplasia was 3.3%. The incidence of right sinus agenesis was 5.12% and left was 1.33%. The mean age of reviewed patients was 39.15 years.
    CONCLUSIONS: The frequency of frontal sinus aplasia is low; however, this must be considered before surgical operations related to the sinuses.
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