Clinical imaging features and prognosis of von Hippel-Lindau syndrome associated with pancreatic lesions / 中华消化外科杂志

Objective:To investigate the clinical imaging features and prognosis of von Hippel-Lindau (VHL) syndrome associated with pancreatic lesions.Method:The retrospective case-control study was conducted. The clinicopathological data of 161 patients with VHL syndrome who were admitted to Peking University First Hospital from September 2010 to August 2022 were collected. There were 83 males and 78 females, with age of onset as 27.0(range, 8.0-66.0)years. Observation indicators: (1) imaging results of VHL syndrome associated with pancreatic lesions; (2) clinical characteristics of VHL syndrome associated with pancreatic lesions; (3) comparison of clinicopathological factors in patients with VHL syndrome associated with pancreatic cystic lesions; (4) comparison of clinicopathological factors in patients with VHL syndrome associated with pancreatic neuroendocrine neoplasms (pNENs). (5) Treatment and prognosis of patients with VHL syndrome associated with pancreatic lesions. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the independent sample t test. Measurement data with skewed distribution were represented as M(range), and comparison between groups was conducted using the non-parameter test. Count data were described as absolute numbers, and comparison between groups was conducted using the chi-square test. Results:(1) Imaging results of VHL syndrome associated with pancreatic lesions. Of the 161 patients with VHL syndrome, there were 151 patients associated with pancreatic lesions and 10 patients not associated with pancreatic lesions. Of the 151 patients with VHL syndrome associated with pancreatic lesions, there were 136 patient with pancreatic cystic lesions and 34 patients with pNENs, 22 patients with both pNENs and pancreatic cystic lesions, and the type of pancreatic lesions could not be accurately determined in 3 cases. (2) Clinical characteristics of VHL syndrome associated with pancreatic lesions. The age of onset in 151 patients with VHL syndrome associated with pancreatic lesions was 33.0(range, 14.0-68.0)years. Cases with gene site mutation of exon 1, exon 2, exon 3 and other types of gene site was 51, 16, 43 and 41, respectively. There were 116 patients of VHL type 1 and 35 patients of VHL type 2. There were 92 patients with family history of VHL syndrome and 59 patients without family history of VHL syndrome. There were 127 patients combined with renal cell carcinoma, 112 patients combined with central nervous system lesions, 46 patients combined with retinal hemangioblastoma. Patients may combined with multiple lesions. (3) Comparison of clinicopathological factors in patients with VHL syndrome associated with pancreatic cystic lesions. The age of onset, VHL syndrome type (VHL1 type, VHL2 type) and cases combined with renal cell carcinoma were 32.5(range, 14.0-68.0)years, 110, 26 and 115 in 136 patients with VHL syndrome associated with pancreatic cystic lesions, versus 22.0(range, 8.0-64.0)years, 13, 12 and 14 in 25 patients with VHL syndrome not associated with pancreatic cystic lesions, showing significant differences in the above indicators between them ( Z=-3.384, χ2=9.770, 10.815, P<0.05). (4) Comparison of clinicopathological factors in patients with VHL syndrome associated with pNENs. The age of onset, gene mutation sites (exon 1, exon 2, exon 3, other types of gene site) and VHL syndrome type (VHL1 type, VHL2 type) were 33.5(range, 14.0-64.0)years, 12, 5, 14, 3 and 18, 16 in 34 patients with VHL syndrome associated with pNENs, versus 27.0(range, 9.0-66.0)years, 41, 12, 32, 42 and 105, 22 in 127 patients with VHL syndrome not associated with pNENs, showing significant differences in the above indicators between them ( Z=-4.030, χ2=8.814, 13.152, P<0.05). (5) Treatment and prognosis of patients with VHL syndrome associated with pancreatic lesions. Of the 161 patients with VHL syndrome, 3 patients underwent surgical treatment, and the remaining patients were followed up. All 161 patients with VHL syndrome were followed up for 6 (range, 1-12)years, in which 15 patients died and 146 patients alive during the follow-up. The follow-up time of 3 patients undergoing surgical treatment was 4, 14, 9 years, respectively, and all of them were alive. Conclusions:The clinical imaging features of pancreatic lesions related to VHL syndrome are cystic lesions and pNENs, which with the characteristics of multiple lesions and benign tumors. Such patients usually do not requiring surgical treatment and have good prognosis.

Cherubism in Saudi population: a rare case report / Querubismo na população Saudi: relato de um caso raro

Cherubism is a rare hereditary benign fibro-osseous disorder characterised by bilateral swelling of the mandible and/or maxilla with varying severity of involvement. It occurs because of dominant mutations in SH3BP2 gene on the chromosome 4p16.3. On radiography cherubic lesions appear as multilocular cystic radiolucencies in the jaw bones giving a soap bubble appearance. These lesions usually heal by themselves by the time the patient attains puberty. Treatment is necessary only in aggressive cases where there is severe facial deformity or vital functions are hampered. Surgical corrections are preferred when the lesion is in its dormant phase. The aim of the present case report is to illustrate a case of cherubism in a 9-year-old Saudi boy which is a very rare occurrence as only 1 case of cherubism has been reported so far in the Saudi Arabian population (AU)

Querubismo é uma desordem fibro-óssea hereditária rara caracterizada por aumento de volume bilateral da mandíbula e/ou maxila com graus variáveis de severidade. Ocorre devido a mutação dominante no gene SH3BP2 no cromossomo 4p16.3. Radiograficamente as lesões de querubismo aparecem como radiolucência multilocular semelhantes a bolhas de sabão nos ossos maxilares. Geralmente as lesões involuem espontaneamente quando o paciente atinge a puberdade. O tratamento se faz necessário apenas nos casos mais agressivos que demonstram deformidade facial severa ou comprometimento de funções vitais. Correções cirúrgicas são preferíveis quando a lesão está na fase dormente. O objetivo do presente relato é ilustrar um caso de querubismo em um paciente de 9 anos da Arábia Saudita, sendo este um evento raríssimo com apenas um outro caso relatado na população da Arábia Saudita (AU)

Diagnosis and differentiation of common sellar cystic/cystic-solid lesions based on clinical and MRI features / 中华内分泌代谢杂志

Cystic lesions in the sellar region are one of the special types of space-occupying lesions in the sellar region, including cystic pituitary adenoma, craniopharyngioma, Rathke′s cyst, pituitary apoplexy, pituitary abscess, arachnoid cyst, epidermoid Cysts, etc. Each type of lesion has its corresponding treatment principles and strategies, and the prognosis also varies. Therefore, a clear preoperative diagnosis helps to hammer out the right treatment plan. If the volume of cystic lesions in the sellar region increases to a certain extent, mass effect and changes in pituitary hormones may occur. Different types of cystic lesions have their own characteristics, so as MRI and other imaging. In this paper, the diagnosis and differential diagnosis are analyzed and summarized based on clinical and imaging features, flow chart of differential diagnosis is developed.

Characterization of Cystic Lesions of Pancreas by Computed Tomography Scan- A Retrospective Study

Cystic lesions of the pancreas consist of both neoplastic and non-neoplastic lesions. Computed tomography (CT) scan is commonly used in imaging cystic lesions of pancreas as it is easily available and less time consuming. In this study, we evaluate the different characteristic features of cystic lesions of pancreas and differentiate them based on imaging.METHODSThis is a retrospective study done over a period of 5 years. 94 patients with cystic lesions of pancreas were selected and analysed. All patients had proven final diagnosis by surgery, by endoscopy guided aspiration or by follow up. Various parameters of the cysts were studied like the age and sex distribution, incidence, size of the lesion, location, thickness of septations, nature of calcification, pancreatic duct dilatation if any, size of the largest cyst within the lesion, approximate number of cysts, presence of any solid component, nature of enhancement, presence of the wall and contour of the lesion. Descriptive statistics like percentage was used and each cyst was differentiated based on the above features.RESULTSOverall, pseudocysts were the commonest cysts, and all were associated with pancreatitis. They were commonly seen in the middle-aged males. Serous cystadenomas were the commonest neoplastic cysts. Benign neoplastic cysts were common in females and malignant neoplastic cysts were common in males. Serous cystadenomas were common in head of the pancreas whereas mucinous cystadenomas were common in tail of the pancreas. All solid pseudo papillary epithelial neoplasm (SPEN) were seen in the tail of the pancreas. No difference in each cyst based on overall size was seen. Mucinous cystadenomas showed fewer but bigger cysts within the lesion compared to serous cystadenomas. Peripheral wall calcification was seen in mucinous cystadenomas whereas central calcifications were seen in serous cystadenomas. Communication with a dilated pancreatic duct and bulging papillae was seen in intraductal papillary mucinous tumour (IPMT). Most of IPMT and serous cystadenomas showed a lobulated invisible wall whereas mucinous cystadenomas showed a smooth visible wall. All malignant cysts were associated with solid component and thick septations.CONCLUSIONSCT scans helps us to diagnose various cystic lesions of pancreas based on different characteristic imaging features

Expert consensus on marsupialization of cystic lesions of the jaw / 口腔疾病防治

@#Marsupialization is effective in the treatment of cystic lesions of the jaw. It is a simple operation that can result in minimal trauma, the reduction of postoperative recurrence, and maximum preservation of the surrounding tissue structure and function. However, there is a certain failure rate in clinical treatment due to the improper grasp of indications and nonstandard operation. The highest failure rate reported in the literature is 32.6%. To further standardize the clinical application of marsupialization and improve the success rate of treatment, we put forward an expert consensus of marsupialization in the treatment of jaw cystic lesions by reviewing the domestic and foreign literature and summarizing the experience in marsupialization from some famous domestic experts. In this consensus, we propose three elements of marsupialization: the establishment of the opening, the maintenance of cyst plugs and regular washing. The scope of application of marsupialization includes jaw cysts and cystic ameloblastomas. It is necessary to standardize the position of the opening, the size of the opening and the manufacture of the cyst plug, and a panoramic film or cone beam computed tomography(CBCT) should be used to observe the changes in the cystic cavity before and after operation. A second-stage operation should be performed when the lesion is significantly reduced by more than 50% or at least 5 mm from important structures; furthermore, the teeth of focus should be treated according to the relationship between the lesion and tooth and the type of tooth.

Desarrollo de modelos educativos para el aprendizaje de nuevas técnicas endoscópicas: miotomía endoscópica por vía oral (POEM) y elastografía por ultrasonido endoscópico / Educational models for learning Peroral Endoscopic Myotomy (POEM) and Endoscopic Ultrasound Elastography

Resumen Objetivos: presentar el desarrollo de modelos educativos para el aprendizaje de dos técnicas endoscópicas vigentes, ampliamente difundidas y de gran implicación clínica, con la única intención de permitir la adquisición de destrezas básicas y avanzadas a residentes y gastroenterólogos. Materiales y métodos: se idearon dos modelos sencillos, de muy bajo costo, fácilmente reproducibles y reutilizables, con los cuales se logra ejecutar la totalidad de los procedimientos descritos. Además, permiten al operador integrar el desarrollo de habilidades y la adquisición de los conceptos teóricos mínimos requeridos, sin las presiones generadas por el riesgo existente de complicaciones. Resultados: la tendencia actual a nivel mundial se conduce hacia el desarrollo de modelos de enseñanza que aceleren la curva de aprendizaje, así como de procedimientos altamente exigentes y asociados a complicaciones potencialmente graves. Con estos modelos es posible poner a prueba al endoscopista, mediante una evaluación continua y supervisada. Su implementación en unidades de gastroenterología es sencilla, sin la necesidad de una inversión superlativa o el desplazamiento a otros países. Conclusiones: se trata de un gran aporte al desarrollo científico y educativo de nuestro país, ya que la creación y la implementación de nuevas técnicas endoscópicas y su aprendizaje no deben ser asumidos por los pacientes. En este punto, estamos de acuerdo con los conceptos emitidos por diferentes asociaciones médicas respecto a que los cursos teórico-prácticos de corta duración -y en algunas ocasiones virtuales- no constituyen una formación mínima, requerida para lograr la acreditación.

Abstract Objectives: This article presents the development of educational models for learning two widespread recent endoscopic techniques which have great clinical implications. Its sole intention is to allow acquisition of basic and advanced skills by residents and gastroenterologists. Materials and methods: Two simple, very low cost, easily reproducible and reusable models were devised. Procedures are fully described in ways that allow the operator to integrate the development of skills and acquisition of the minimum theoretical concepts required without the pressures generated by risks of complications. Results: The current global trend is to develop teaching models that accelerate the learning curve for highly demanding procedures that are associated with potentially serious complications. With these models it is possible to test endoscopists through continuous supervised evaluations. Implementation by gastroenterology units can be done easily without the need for large investments or travel to other countries. Conclusions: This is a great contribution to the scientific and educational development of Colombia since neither development of new endoscopic techniques nor the process of learning how to perform them should put patients at risk. We agree with the ideas of numerous medical associations regarding theoretical-practical courses of short duration even though some virtual sessions, "do not constitute the minimum training required needed for accreditation".

Case report of a posterior vaginal wall Mullerian cyst

Mullerian cysts are common types of vaginal cysts, which are small and mainly asymptomatic. Sometimes they present as large symptomatic cystic lesions arising issues of differential diagnosis. They are congenital cysts found anywhere along the length of development of Mullerian duct, occurring typically during the conventional gynaecological examination. Authors report of a premenopausal woman presenting with a small asymptomatic, palpable cystic lesion in the posterior vaginal wall, found during the gynaecological re-examination one month after an open surgery for an ovarian endometrioma excision. The whole lesion was 0.4cm and surgically excised under general anesthesia. Postoperative period was completely uncomplicated. Pathology affirmed a benign Mullerian cyst. Although the majority of vaginal cysts may be asymptomatic, a complete excision is required especially in cases of suspected malignancy or other pathology. Clinical examination and imaging are not enough for determining the pathology and a histopathology confirmation is always necessary.

Value of preoperative MRI technology in diagnosing pituitary cystic lesions / 局解手术学杂志

Objective To explore the value of MRI technology in diagnosing pituitary cystic lesions,and to improve the diagnostic level of MRI imaging of pituitary cystic lesions. Methods Retrospective analysis of the MRI examination data of 31 cases with pituitary cystic le-sions confirmed pathologically from January 2013 to November 2016, including cystic pituitary tumor 16 cases,pituitary abscess 6 cases and Rathke' s cyst 9 cases,all the cases underwent MRI scan and 22 underwent enhanced GD-DTPA scan. Results 16 cases of cystic pituitary tumor,12 cases of large pituitary adenomas, micro adenoma 4 cases. 12 cases large pituitary adenomas were shown as in solid tumors in the capsule,T1WI showed low signal,while T2WI showed high signal. Capsule wall was equal signal and thickness was uneven,obvious enhance-ment,3 cases with bleeding,T1WI showed high signal,and liquid level. 4 cases of cystic adenoma,TIWI showed slightly low signal,T2WI showed high signal,edge mild enhancement,1 case had been preoperatively misdiagnosed as Rathke' s cyst,1 case of missed diagnosis. 6 ca-ses of pituitary abscess,T1WI was low or equal signal,T2WI was equal, high signals or uneven,most of the boundary was not clear,Most of the lesions in circular reinforcement or separated reinforcement,uneven parts for reinforcement,Visible near the base of skull meningeal,cav-ernous sinus area reinforcement. 2 cases of T2WI of mixed high and low signal,preoperative misdiagnosed as pituitary tumors and tumor apo-plexy. 9 cases of Rathke's cyst,5 cases were shown as slightly long T1 long T2 signal, boundary was clear,the edges slightly enhanced,4 ca-ses in T1WI,T2WI high signal,among them 2 cases misdiagnosed as craniopharyngioma. The diagnostic accuracy rates were respectively:87. 5％, 66. 7％, 77. 8％. Conclusion MRI can well show the location,shape and signal characteristics of pituitary cystic lesions in the sellar region,and can make qualitative diagnosis to a large extent,which is of guiding significance for clinical operation.

CT and MRI in diagnosis of cystic lesions of sellar region / 中国医学影像技术

Objective To analyze CT and MRI characteristics of sellar cystic lesions.Methods Clinical and imaging data of 83 sellar cystic lesions were retrospectively analyzed.The location,size,number of the sac,thickness of the wall and some special signs,such as mural nodules,cavernous sinus invasion were observed.Results Totally 83 patients with sellar cystic lesions including cystic pituitary adenoma (n=33),craniopharyngioma (n=28),rathke cleft cyst (n-15),dermoid cyst (n =2),epidermoid cyst (n =2),arachnoid cyst (n =2) and pituitary abscess (n =1) were enrolled.The cystic pituitary adenoma and arachnoid cyst showed low signal on T1WI and high signal on T2WI.The signal of Rathke cleft cyst and craniopharyngioma displayed complex.Dermoid cysts,epidermoid cyst and pituitary abscess exhibited high signal on DWI.There were significant statistic differences of the size,number of the sac and the wall thickness among cystic pituitary adenomas,craniopharyngiomas and Rathke cleft cysts (all P＜0.05).Conclusion Observation of imaging features,including location,shape,signal intensity,characteristics of the capsule and some special signs can improve differential diagnosis of cystic lesion of sellar region.

Application of obturators made of super soft liner thermosetting resin in the fenestration treatment of jaw cystic lesions / 实用口腔医学杂志

Obturators made of super soft liner thermosetting resin for 59 patients with fenestrated mandibular cyst were regulated according to cystic sizes.Cystic sizes and bone repair were detected by panoramic radiograph and CT 3,6 and 12 months after operation.In all patients,the cystic areas had higher bone mineral density than before,and cystic sizes dereased.32 patients had more than 50％ new bone formation in cystic areas,and cystic areas of 17 patients entirely disappeared without the need of secondary scale.

CT findings of splenic cystic lesions / 实用放射学杂志

Objective To explore the CT features of splenic cystic lesions(SCL)in order to improve the diagnostic ability of these diseases.Methods The CT findings of 32 patients with SCL proved by surgical pathology were reviewed retrospectively.Of the patients,10 underwent plain CT scan,8 underwent enhanced CT scan,and 14 underwent both plain and enhanced CT scan.Results Non-tumor splenic cystic lesions were 19,including 7 congenital cysts,1 pseudocyst,1 hydatid cyst,2 abscesses and 8 hematomas.Spleen tumor lesions were 13,including 5 angiomas,2 splenic cystic lymphangiomas and 6 cystic metastases.The CT characteristics in size,shape, cyst wall,density and enhancement feature can help to discriminate non-neoplasm and neoplasm cyst.Conclusion With the plain and enhanced CT manifestations of some SCL,we could make correct preoperative diagnosis,and provide theoretical basis for selection of clinic treatment and prognostic judgment.

Clinical evaluation and analysis of influencing factors of decompression in large cystic lesions of the jaws / 口腔疾病防治

Objective@#To evaluate the effect of decompression treated large cystic lesions of the jawsand analyze the influencing factors.@*Methods @#With the panoramic radiographs, the cysts size were measured before and after decompression in 6 dentigerous cysts (DC), 9 keratocystic odontogenic tumors (KTOC) and 10 unicystic ameloblastomas (UA). The reduction rate in the three cystic groups was calculated. Relationships between the age of the patient, the initial size of the cyst and the reduction rate were also analyzed.@*Results@#The reduction size of the three types of cysts at 6 months after decompression: DC group 60.73% ± 7.15%, KTOC group 60.99% ± 4.00%, UA group 59.25% ± 6.81%.There was no difference in their reduction rate between the three types of cysts (P>0.05). However, there was a statistically meaningful relationship between the initial size of the lesion and the absolute reduction rate in the UA and KOTC group (UA group: P<0.01, R=0.99; KTOC group: P<0.01, R=0.86). There was also a significant relationship between the age of the patient and the absolute reduction rate in the DC and UA groups (DC group: P<0.01, R=0.99; UA group: P<0.01, R=0.99). @*Conclusion@#There was no difference in the reduction in size due to decompression between the three types of cysts. However, the age of the patient and the initial size of the lesion showed a significant relationship with the reduction rate.

Benign ovarian cystic lesions: CT and MRI findings / 实用放射学杂志

Objective To study the CT and MRI features of benign ovarian cystic lesions (BOCL) and to improve the understanding of imaging features.Methods CT and MRI findings were retrospectively reviewed and analyzed in 48 patients with BOCL proved by surgical pathology.CT scan was performed in 35 cases, among which 20 cases were performed with CT enhancement scan;MRI scan was performed in 8 cases, among which 3 cases were performed with MRI enhancement scan and diffusion weighted imaging(DWI).Five cases were performed with both CT and MRI.Results There were 11 cysts (3 simple cysts, 3 corpus luteum cyst, and 5 endometriotic cyst), 10 serous cystadenomas with 13 lesions, 8 mucinous cystadenomas, 9 teratomas with 10 lesions, and 10 struma ovarii.The CT and MRI characteristics of the lesions in size, shape,thickness of cyst wall,wall nodule,density or signal intensity,and enhancement features were helpful in differential diagnosis of BOCL.Conclusion CT and MRI findings of BOCL have certain characteristics, which is significant in the diagnosis, preoperative evaluation and prognosis.

Clincal value of contrast-enhanced ultrasound in differential diagnosis of pancreatic pseudocysts, cystadenomas and cystadenocarcinomas / 中国基层医药

Objective To investigate the value of contrast-enhanced ultrasound (CEUS) in differential diagnosis of pancreatic pseudocysts,cystadenomas and cystadenocarcinomas,so as to improve diagnostic accuracy of the condition.Methods The results of CEUS and conventional ultrasound for 71 patients with pancreatic cystic lesions were analyzed retrospectively,and compared with the finally obtained surgical-pathological examination to assess the ability of qualitative diagnosis between two methods.Results In 71 pancreatic cystic lesions,there were 32 pancreatic pseudocysts,24 cystadenomas and 15 cystadenocarcinomas.The sensitivity and accuracy of CEUS for pancreatic pseudocysts and cystadenocarcinomas were 84.4％,93.0％ and 86.7％,88.7％,which were higher than those of conventional ultrasound 56.3 ％,80.3 ％ and 53.3 ％,74.6％ (x2 =6.06,4.92,3.97,4.71,all P ＜ 0.05).Conclusion There are some similarities in terms of imaging manifestations among pancreatic pseudocysts,cystadenomas and cystadenocarcinomas.Combining conventional ultrasound with CEUS can help the differential diagnosis of pancreatic cystic lesions.

Surgical indication,diagnosis and treatment of suspected pancreatic cystic lesions / 局解手术学杂志

Objective To explore the surgical indication,diagnosis and treatment of suspected pancreatic cystic lesions.Methods To-tally 341 patients were admitted into our hospital because of pancreatic cystic lesions from October 2010 to October 2015.Except the 278 confirmed cases,the clinical data of the rest 63 patients with vague diagnosis were retrospectively analyzed.Results The surgical indication of pancreatic cystic lesions were:the lesion diameter was more than 4 cm;the imaging diagnosis was malignant;the lesion was combined with obvious clinical symptoms which can not explain with other diseases;there were asymptomatic pancreatic cystic lesion and main pancre-atic duct dilation without surgical risk factors;the follow-up showed that the desease is in development.Endoscopic ultrasonography guided fine needle aspiration is a useful supplement for more accurate diagnosis.However,it is an uncertain diagnostic value currently.Conclusion Diameter of lesion,uncertain imaging diagnosis,severe abdominal symptoms,obstructive jaundice and abnormal serum tumor markers are the surgical indication for patients.

The autologous platelet rich fibrin: A novel approach in osseous regeneration after cystic enucleation: A pilot study.

Context: The platelet rich fibrin (PRF) is second generation platelet concentrate that has been widely used and researched for stimulation and acceleration of soft tissue and osseous healing. Its continuous delivery of growth factors and proteins mimic the need of physiological wound healing and regenerative tissue processes. Aims and Objectives: The aim of this study was to evaluate the efficacy of PRF in osseous regeneration after enucleation of cystic lesions. The objectives of this study were: (1) To evaluate osseous regeneration radiographically with the use of PRF in intrabony defects after cystic enucleation. (2) To evaluate the degree of bone density in intrabony defects with the use of PRF postoperatively after 1st, 3rd, and 6th months. Subjects and Methods: 10 cases of cystic lesions were treated using PRF after cystic enucleation. Follow‑up radiographs (orthopantomogram) were taken 1st, 3rd, and 6th months postoperatively. Bone density was measured with grayscale histogram using Adobe Photoshop 7.0 software. Results: The subsequent follow‑up examinations revealed progressive, predictable, and significant radiographic osseous regeneration. Conclusion: The use of PRF in management of cystic lesions seems to be a novel therapeutic approach promoting faster osseous regeneration within 6 months postoperatively however further study is required with larger sample size and with a control group.

Quiste dermoide cervical / Cervical dermoid cyst

Los quistes dermoides presentan una incidencia de 1,6 hasta 6,9 % en la región de cabeza y cuello. Se realiza el siguiente reporte de caso clínico con el objetivo de enfatizar en la importancia de un adecuado manejo diagnóstico preoperatorio, para establecer una acertada planificación quirúrgica en la exéresis de este tipo de lesiones de la región cervicofacial. Se presenta el caso clínico de un paciente masculino, de 13 años de edad, quien hacía 3 años se notaba un crecimiento redondeado en región submentoniana, lo cual le ocasionaba molestias al hablar y ligera afectación de su estética facial. Una vez realizados los estudios complementarios preoperatorios, se decide tratamiento quirúrgico, empleando una cervicotomía medial para la extirpación de la lesión quística, dada la ubicación anatómica por debajo del músculo milohiodeo y su gran dimensión. El diagnóstico histopatológico se corresponde con un quiste epidérmico. Se concluye que resulta imprescindible realizar un exhaustivo examen físico e imagenológico, para lograr resultados satisfactorios en el tratamiento quirúrgico del quiste dermoide cervical.

Dermoid cysts have an incidence rate of 1.6 to 6.9 % in the head and the neck. This is the report of a clinical case aimed at making emphasis on the importance of an adequate preoperative diagnostic management in order to set a right surgical planning in the excision of this type of lesions in the cervicofacial region. A 13 years-old patient, who had noticed a rounded growth under his chin for three years, which caused discomfort on speaking and mild effects on its facial esthetics. After the preoperative supplementary studies, it was decided to make surgery by using medial cervicotomy for excision of cystic lesion due to the anatomical location of the cyst below the mylohyoid muscle and to its great dimension. The histopathological diagnosis was epidermal cyst. It was concluded that it is indispensable to make thorough physical and imaging examination to achieve satisfactory results in the surgical treatment of a cervical dermoid cyst.

Eruption of impacted permanent teeth associated with cystic lesions of the jaws after fenestrating decom-pression in adolescents / 实用口腔医学杂志

Objective:To investigate the eruption of cystic lesion associated impacted permanent teeth(CAIPT)of the jaws after fe-nestrating decompression in adolescents and to analyze the related factors that affect the eruption of CAIPT.Methods:32 cases of CAIPT were examined restrospectively by panoramic radiographs.The subjects were divided into erupted group(n =22),and nonerupt-ed group(n =10).Patient age,angulation of the CAIPT,the cusp depth,eruption space and the level of dental root formation meas-ured on intial panoramic radiograph,were subjected to statistical analysis.Results:The eruption of the impacted mandibular molar was significantly related to the cusp depth,level of dental root formation and the patient's age(P 0.05).Conclusion:The patient's age,angulation of impacted permanent teeth,cusp depth,eruption space,level of dental root formation should be considered in the management of CAIPT.

Clinical application of decompression in the treatment of jaw large cystic lesions / 实用口腔医学杂志

Objective:To investigate the clinical value of decompression in the treatment of jaw large cystic lesions.Methods:42 patients with jaw large cystic lesions were treated with decompression.Imaging examination was taken and compared before and after the treatment.The influence of frequency of cyst cavity washing on the effect of decompression was observed.Results:3 moths after de-compression the border of the cyst cavity became ambiguous and the size of the cavity reduced.12 months after decompression the size of cyst cavity was stable,when second surgery was taken to remove the left cyst wall.There was no recurrence of the cystic lesion after 1 ~2 year follow-up.Cyst cavity was washed everyday,but the effect and treatment course were not influenced by the daily washing times.Conclusion:Decompression is effective in the treatment of the jaw large cystic lesions.

Florid Cystic Endosalpingosis with Large Pelvic Cyst:a Case Report / 中国微创外科杂志

[Summary] This paper reports a postmenopausal woman with a rare florid cystic endosalpingosis presenting as an ovarian cyst, with many cystic lesions in the pelvis.She had chronic pelvic pain and ultrasound diagnosed of multiple cystic lesions in the pelvis. Not being aware of this rare condition of endosalpingiosis,she was laparoscopically managed successfully when the condition was diagnosed at the time of operation.There are only a few reports in the literature presenting florid cystic endosalpingiosis as ovarian or pelvic mass.This paper would not only highlight this uncommon presentation,it also raises issues for discussion relating to pre-operative diagnosis,laparoscopic appearance,pathological features and the current practice of routine salpingectomy in high risk patients in order to reduce high grade serous ovarian neoplasms.