Saccule and Utricle

囊和囊
  • 文章类型: Case Reports
    46,XX男性性发育障碍罕见。大约80%的睾丸组织分化病例可能是由于SRY易位到X染色体或常染色体。SRY阴性46,XX男性显示睾丸前基因的过表达,如SOX9和SOX3,或前卵巢基因的失败,如WNT4和RSPO1,诱导睾丸分化,然而,几乎所有的睾丸都表现出发育不全。在胚胎阶段暴露于雄激素不足后,苗勒管的残留物和泌尿生殖窦的不完全闭合导致前列腺增大。这种情况与近端尿道下裂和性发育障碍有关。许多病例是无症状的,但显示术后并发症和手术失败的发生率增加。
    介绍了一个5岁的中国男孩,患有阴囊尿道下裂和双侧隐睾伴前列腺输尿管。性腺组织学显示右侧睾丸组织和左侧睾丸组织;所有睾丸组织均表现出发育不全。此外,染色体核型分析显示46,XX和,通过聚合酶链反应分析排除了SRY的存在.全基因组分析显示,该男孩在涉及SOX3的Xq27.1q27.2区域(arr[hg19]Xq27.1q27.2:139585794-140996652)中有1.4Mb重复。在父母中没有观察到SOX3重复,表型正常的人。
    我们报告了第一例SRY阴性的46XX男性,由SOX3重复引起的前列腺囊。SOX3重复可能会导致性别逆转,所有46,XXSRY阴性男性都应进行SOX3突变筛查。建议进行性腺活检以评估卵巢和睾丸组织的发育。睾丸发育不全和胎儿发育过程中男性荷尔蒙的低暴露会导致前列腺肥大。因此,术前应进行内窥镜检查,以检测SRY阴性46,XX男性的前列腺细胞,以确定手术计划并减少术后并发症。
    46,XX male disorders of sex development are rare. Approximately 80% of cases of testicular tissue differentiation may be due to translocation of SRY to the X chromosome or an autosome. SRY-negative 46,XX males show overexpression of pro-testis genes, such as SOX9 and SOX3, or failure of pro-ovarian genes, such as WNT4 and RSPO1, which induces testis differentiation, however, almost all testicles exhibit dysgenesis. Following inadequate exposure to androgens during the embryo stage, remnants of the Mullerian duct and incomplete closure of the urogenital sinus lead to enlargement of prostatic utricles. This condition is associated with proximal hypospadias and disorders of sex development. Many cases are asymptomatic, but show increased rates of postoperative complications and surgical failure.
    A 5-year-old Chinese boy with scrotal hypospadias and bilateral cryptorchidism with prostatic utricles was presented. Gonadal histology showed ovo-testicular tissue on the right side and testicular tissue on the left side; all testicular tissue exhibited dysgenesis. Furthermore, chromosome karyotype analysis revealed 46,XX and, the presence of SRY was ruled out by polymerase chain reaction analysis. Whole-genome analysis showed the boy has a 1.4-Mb duplication in the Xq27.1q27.2 region (arr[hg19]Xq27.1q27.2:139585794-140996652) involving SOX3. No SOX3 duplication was observed in the parents, who had a normal phenotype.
    We report the first case of an SRY-negative 46 XX male with prostatic utricle caused by SOX3 duplication. SOX3 duplication may cause sex reversal, and all 46,XX SRY-negative males should be screened for SOX3 mutations. Gonadal biopsy is recommended to evaluate ovarian and testicular tissue development. Testicular dysgenesis and low exposure to male hormones during fetal development can lead to enlarged prostatic utricles. Thus endoscopic examination should be performed preoperatively to detect prostatic utricles in SRY-negative 46,XX males to determine the surgical plan and reduce postoperative complications.
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  • 文章类型: Case Reports
    前列腺囊囊肿是Muller导管系统的胚胎学残余,由于胚胎发育过程中这些结构的不完全回归。大多数时候这种先天性改变是无症状的,但有时可能会出现各种体征和症状,从尿路感染到血精症发作的一小部分病例。
    我们报道了一例42岁的男子,他反复发作血精症约20年;仪器检查,首先是TRUS,然后是MRI评估,证明了囊性形成的存在,位于前列腺的后正中部位,靠近前列腺尿道。
    经会阴超声引导细针穿刺取液的细胞学检查,证实精液和正常前列腺组织的存在符合前列腺囊囊肿的诊断假设。
    认识前列腺囊囊肿的影像学特征很重要,因为它可能是年轻成年受试者血精的可能良性原因之一。
    Prostatic utricle cyst is an embryological remnant of the Muller duct system, resulting from an incomplete regression of these structures during embryological development. Most of the time such congenital alteration is asymptomatic, but may sometimes present with various signs and symptoms, from urinary tract infections to episodes of haematospermia in a small percentage of cases.
    We reported the case of a 42-years-old man who suffered from recurrent episodes of haematospermia for about 20 years; the instrumental examinations, first of all TRUS and then MRI evaluation, demonstrated the presence of a cystic formation, located in the posterior median site of the prostate closely to the prostatic urethra.
    The cytological examination on the liquid taken by transperineal US-guided fine-needle aspiration, confirmed the presence of seminal fluid and normal prostatic tissue consistent with the diagnostic hypothesis of prostatic utricle cyst.
    It\'s important to recognize the imaging characteristics of the prostatic utricle cyst since it may be one of the possible benign causes of hematospermia in the young adult subject.
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  • 文章类型: Case Reports
    背景:前列腺囊(PU)是一种不寻常的病理,大多数患者无症状。然而,大约29%的患者可能会出现下尿路症状,复发性尿路感染(UTI),后运球,尿道分泌物,附睾-睾丸炎,石头,以及由小袋内尿液滞留和尿潴留引起的继发性尿失禁。标准的治疗方法是手术切除,但它只提供给有症状的患者。病例总结:我们报告了一例6岁男孩患有先天性甲状腺功能减退症和阴囊尿道下裂的病例,该男孩以前曾接受过近端尿道成形术,合唱释放,双侧未降睾丸的睾丸固定术,腹腔镜疝修补术治疗左腹股沟疝。然而,患者后来发展为UTI和右侧附睾-睾丸炎的重复。循环排尿膀胱尿道造影证实存在囊性病变,该囊性病变与前列腺尿道连通。然后通过腹腔镜切除PU。在膀胱后方发现了动脉囊,通过腹腔镜检查发现输精管交叉插入到动脉中。手术后的课程很顺利。结论:腹腔镜下PU切除术提供了更好的暴露范围,改善伤口外观,完全切除,减少并发症的发生。在腹腔镜检查期间,PU与膀胱或其他盆腔器官明显不同。很少有偶然发现输精管交叉的报道。膀胱镜检查和腹腔镜联合切除PU是可行的,安全,并且在这个患者群体中有效。
    Background: A prostatic utricle (PU) is an unusual pathology with most patients being asymptomatic. However, approximately 29% of patients may show lower urinary tract symptoms, recurrent urinary tract infections (UTI), postvoid dribbling, urethral discharge, epididymo-orchitis, stones, and secondary incontinence caused by urine trapping in the pouch and urinary retention. The standard treatment is through surgical resection, but it is only offered to patients with symptoms. Case summary: We report a case involving a six-year-old boy with congenital hypothyroidism and penoscrotal hypospadias who had previously undergone onlay urethroplasty for the proximal shaft, chordee release, orchidopexy for bilateral undescended testis, and laparoscopic herniorrhaphy for left inguinal hernia. However, the patient later evolved the repetition of UTI and right epididymo-orchitis. Cyclic voiding cystourethrography confirmed the presence of a cystic lesion communicating with the prostatic urethra from the utricle. The PU was then excised laparoscopically. The utricle was identified posterior to the bladder, and insertions of the vas deferens crossover into the utricle were detected by laparoscopy. The post-procedure course was uneventful. Conclusions: Laparoscopic resection of PUs offers a better exposure field, improved wound appearance, complete resection, and reduces the incidence of complications. During laparoscopy, the PU was clearly distinguished from the bladder or other pelvic organs. An incidental finding of vas deferens crossover has rarely been reported. A combined cystoscopy and laparoscopy for PU resection is executable, safe, and valid in this patient population.
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  • 文章类型: Case Reports
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  • 文章类型: Case Reports
    我们在此描述了一个主要主诉为发作性眩晕和“去人格化”的患者的病例,“一种脱离自己身体的感觉。
    本案例研究旨在进一步了解临床知识,并深入了解患有人格解体的眩晕患者的临床评估。
    这是一个案例研究。
    对一名有去人格化主诉的眩晕患者进行前庭功能测试的回顾性图表回顾。
    前庭功能测试显示左侧颈部和眼部前庭诱发的肌源性电位缺失,vHIT或视频头部冲动测试正常,视频眼震描记术,和旋转椅子的结果,提示左囊囊和外囊周围前庭损伤。
    耳石末端器官受损解释了患者在尝试走动时姿势向左侧偏离。我们建议临床医生应注意患者对人格解体的抱怨,并进行前庭诱发的肌源性电位测试,以确定是否存在至少单侧外周耳石末端器官损害的证据。
    We describe herein the case of a patient whose primary complaints were episodic vertigo and \"depersonalization,\" a sensation of detachment from his own body.
    This case study aims to further clinical knowledge and insight into the clinical evaluation of vertiginous patients with complaints of depersonalization.
    This is a case study.
    A retrospective chart review of vestibular function testing done on a vertiginous patient with complaints of depersonalization was performed.
    Vestibular function testing revealed absent cervical and ocular vestibular evoked myogenic potentials on the left side with normal vHIT or video Head Impulse Test, videonystagmography, and rotational chair results, suggesting peripheral vestibular impairment isolated to the left saccule and utricle.
    The otolith end organ impairment explains the patient\'s postural deviation to the left side during attempts to ambulate. We recommend that clinicians should be attentive to patient complaints of depersonalization and perform vestibular evoked myogenic potential testing to determine whether evidence of at least a unilateral peripheral otolith end organ impairment exists.
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  • 文章类型: Journal Article
    OBJECTIVE: Like other vestibular schwannomas developing in the internal auditory canal, intralabyrinthine schwannomas (ILS) may present with similar symptoms as in endolymphatic hydrops. Two different studies have described MR saccular hydrops in ~ 30% of internal auditory canal vestibular schwannomas, but this association has never been studied in ILS before. The aim of this work is to study the prevalence of a saccular dilation in ILS, on a T2-weigthed sequence at 3 T, compared to a control group.
    METHODS: All patients presenting with typical ILS between January 2008 and October 2018 were included (n = 28, two patients with bilateral tumors) and compared to a control group (n = 53). All underwent a high-resolution T2-weighted 3D sequence (FIESTA-C). The height and width of the saccule were measured on a coronal plane by two radiologists.
    RESULTS: The saccule was dilated on the side of the schwannoma in 47% of the cases (p = 0.0006 for the height, p = 0.0487 for the width). Bilateral saccular dilation was observed in 37% of the cases. There was a statistically significant correlation between the presence of a saccular hydrops and balance disorders (p = 0.02) as 50% of the patients with an intralabyrinthine schwannoma who presented with such symptoms had a saccular dilation.
    CONCLUSIONS: Forty-seven percent of ILS are associated with homolateral saccular dilation, which is an MR sign of endolymphatic hydrops (bilateral in 37%) and it appears related to the presence of balance disorders. This opens new therapeutic potentialities with the possible use of anti-vertiginous drugs, which could have a beneficial effect on their clinical symptomatology.
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  • 文章类型: Journal Article
    OBJECTIVE: Vestibular schwannomas (VS) may present with similar symptoms endolymphatic hydrops. Association between hydrops and internal auditory canal VS has been described by Naganawa et al. (Neuroradiology 53:1009-1015, 2011), but has never been confirmed since. The aim of this work was to study the prevalence of a saccular dilation on a T2-weighted sequence at 3 T MRI in VS compared to a control group.
    METHODS: All patients presenting with typical VS between May 2009 and July 2018 were included (n = 183) and compared to a control group (n = 53). All underwent a high-resolution T2-weighted 3D sequence (FIESTA-C). The height and width of the saccule were measured on a coronal plane by two radiologists.
    RESULTS: The saccule was dilated on the side of the schwannoma in 28% of the cases (p = 2.81 × 10- 5), with 15.7% of bilateral dilation. Saccular dilation was correlated to sensorineural hearing loss (OR 3.26, p = 0.02). There was also a significant correlation between saccular hydrops on the normal contralateral side of patients with VS and vertigo (p = 0.049), and between saccular hydrops on the side of the tumour and tinnitus (p = 0.006).
    CONCLUSIONS: A third (29%) of VS are associated with a saccular dilation on the side of the tumour, which is an MR sign of endolymphatic hydrops (bilateral in 15.7% of the cases) and it appears related to sensorineural hearing loss and tinnitus, as well as vertigo if a contralateral dilation is present. This opens new therapeutic potentialities with the use of anti-vertiginous drugs, which could have a beneficial effect on the clinical symptoms.
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  • 文章类型: Case Reports
    We report the case of a 54-year-old woman who presented for evaluation of deterioration in her voice and swallowing function, which had begun after she had undergone a medialization laryngoplasty for unilateral vocal fold paralysis. Findings on examination and imaging revealed that a mass had developed adjacent to the Silastic implant that had been placed during the laryngoplasty. The superior extent of the implant reached above the laryngeal ventricle. Endolaryngeal surgical resection of the mass was accomplished without the need to remove the implant. Pathologic analysis identified the mass as a laryngeal saccular cyst. Although laryngeal saccular cysts are uncommon, medialization laryngoplasties are not. This case represents a rare complication of medialization laryngoplasty in which an implant compressed the laryngeal saccule and led to formation of the cyst.
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  • 文章类型: Case Reports
    OBJECTIVE: This is the first report, to our knowledge, of a child with torticollis due to saccular dysfunction.
    METHODS: An 18-month-old infant with torticollis was referred for postural imbalance and observed rotary nystagmus. The infant had undergone physical therapy treatment of left torticollis for nearly 15 months. Cervical vestibular evoked myogenic potentials (cVEMPs) were recorded to assess saccular function and caloric stimulation and positional and rotational testing were performed to evaluate other vestibular receptors. The child demonstrated abnormal cVEMP findings, with a low-amplitude response on the left, which indicated left-sided saccular dysfunction. The patient\'s rotary-torsional nystagmus suggested positional vertigo secondary to abnormal saccular function.
    CONCLUSIONS: This case highlights that saccular dysfunction should be considered when timely resolution of congenital torticollis is not obtained with physical therapy. Early detection of abnormal saccular function in infants and young children with CPT is necessary to ensure appropriate intervention. Further study needs to be done to confirm our findings.
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    文章类型: Case Reports
    Sound-induced vestibular evoked myogenic potentials (VEMP) on the surface of the sternocleidomastoid muscle constitute the basis of the saccular function test. In order to assess the saccular function, VEMP test was performed in a patient having unilateral Meniere\'s disease with profound sensorineural hearing loss in the contralateral ear. The saccular response was absent on the affected side with a normal caloric response. However, VEMP response was normal in the contralateral ear with profound sensorineural hearing loss and canal paresis. There may be saccular dysfunction in Meniere\'s disease.
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