• Title/Summary/Keyword: Cyst-like lesion

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A Case Report of the Radicular Cyst in Maxillary Anterior Teeth Treated by Enucleation (상악전치에 발생한 치근단낭종 치험례)

  • Lee, You-Il
    • The Journal of the Korean dental association
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    • v.21 no.12 s.175
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    • pp.991-995
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    • 1983
  • A radicular cyst is a slowly-growing epithelial sac lining a pathologic cavity in the bone at the apex of a tooth. Large radicular cyst revealed by radiographic examination almost always appear to involved several teeth. The author observed a 31 year old woman with a labial swelling and palatal mucosal expansion of the maxillary anterior region. Radiographic examination indicated that the lesion extended from the left maxillary lateral incisor to the right lateral incisor. Cyst consisted of tan to gray yellow slightly firm to partly hard plaque like tissue measuring 3.4 x 2.2 x 0.3㎝. The author has treated the cyst by means of enucleation with apicoecomies of the involved teeth except the right central incisor. Recovery proceed satisfactorily and there were no clinical or radiologic signs of recurrence 8 months later.

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A Ganglion Cyst in the Second Lumbar Intervertebral Foramen

  • Kim, Sang-Woo;Choi, Joon-Hyuk;Kim, Min-Su;Chang, Chul-Hoon
    • Journal of Korean Neurosurgical Society
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    • v.49 no.4
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    • pp.237-240
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    • 2011
  • Ganglion cysts usually arise from the tendon sheaths and tissues around the joints. It is usually associated with degenerative arthritic changes in older people. Ganglion cyst in the spine is rare and there is no previous report on case that located in the intervertebral foramen and compressed dorsal root ganglion associated severe radiculopathy. A 29-year-old woman presented with severe left thigh pain and dysesthesia for a month. Magnetic resonance imaging revealed a dumbbell like mass in the intervertebral foramen between second and third lumbar vertebrae on the left side. The lesion was removed after exposure of the L2-L3 intervertebral foramen. The histological examination showed fragmented cystic wall-like structure composed of fibromyxoid tissue but there was no lining epithelium. A ganglion cyst may compromise lumbar dorsal root ganglion when it located in the intervertebral foramen. Although it is very rare location, ganglion cyst should be included in the differential diagnosis for intervertebral foraminal mass lesions.

A repeatedly recurrent desmoplastic ameloblastoma after removal and allobone graft: Radiographic features compared with histological changes

  • Kim, Jae-Duk;Jang, Hyun-Seon;Seo, Yo-Seob;Kim, Jin-Soo
    • Imaging Science in Dentistry
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    • v.43 no.3
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    • pp.201-207
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    • 2013
  • A 40-year-old man suffered from a repeatedly recurrent desmoplastic ameloblastoma in the right maxillary anterior and premolar regions. During the first visit, the patient was provisionally histopathologically diagnosed with a developmental cyst, and it was confirmed to be unicystic ameloblastoma and resected. Four years later, the lesion recurred, and was diagnosed as a desmoplastic type of ameloblastoma and removed again. Then, 5 years after the second surgery, the lesion recurred again, and was diagnosed as a type containing a follicular pattern, recurrent ameloblastoma. A panoramic radiograph showed a multilocular and mixed radiolucent/radiopaque expansile lesion at the first visit, a unilocular cystic lesion confined to the premolar area at the second visit, and a small soap bubble appearance in the molar area in the final visit. Cone-beam computed tomographic images of the final recurrence of the tumor revealed multiple small cyst-like structures in the right maxillary anterior and posterior regions.

Congenital Cystic Adenomatoid Malformation of The Lung - A Case Report - (선천성 낭포성 선양기종: 1례 보고)

  • 김명인
    • Journal of Chest Surgery
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    • v.24 no.8
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    • pp.819-823
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    • 1991
  • The congenital cystic adenomatoid malformation of the lung is a rare disease, and is one of the most common congenital lung diseases which require prompt surgical intervention. The prognosis depends on its tissue type, prompt diagnosis and surgical intervention. The lesion consists of enlarged, variable sized multiple cyst with overgrowth of terminal bronchioles, like hamartoma. This disease can be associated with other vascular anomalies or other congenital defect especially in type II lesion We recently experienced one case of congenital cystic adenomatoid malformation The patient was 2 months old infant who showed respiratory distress without associated anomaly. After right upper lobe lobectomy, the patient was recovered uneventfully.

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Risk factors for postoperative infection of odontogenic cysts associated with mandibular third molar

  • Kim, Jin-woo;On, Do-hyun;Cho, Jin-yong;Ryu, Jaeyoung
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.42
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    • pp.4.1-4.4
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    • 2020
  • Background: Odontogenic cysts associated with lower third molar are common. The prognosis for surgical treatment is relatively good. However, postoperative infection discourages the clinicians. Hence, we would like to investigate the factors associated with infection after surgical treatment of cysts associated with the mandibular third molar. Methods: We retrospectively reviewed the medical and radiographic records of 81 patients who were diagnosed with dentigerous cyst or odontogenic keratocyst and underwent cyst enucleation. The factors affecting postoperative infection were divided into host factor, treatment factor, and cystic lesion factor. To identify the factors associated with postoperative infection, we attempted to find out the variables with significant differences between the groups with and without infection. Results: A total of 81 patients (64 male and 17 female) were enrolled in this study. There was no statistical relationship about the postoperative infection between all variables (gender, smoking, diabetes mellitus, age, bone grafting, related tooth extraction, previous marsupialization or decompression, type of antibiotics, cortical perforation associated with cystic lesion, preoperative infection, preoperative cyst size). Conclusions: The results of this study suggest that it is not necessary to avoid bone grafts that are concerned about postoperative infection.

DERMOID CYST IN AN INFANTILE UPPER LIP (영아의 상순에 발생한 유피낭종)

  • Kim, Seong-Oh;Moon, Sung-Hwan;Lee, Jae-Ho;Choi, Hyung-Jun;Choi, Byung-Jai
    • Journal of the korean academy of Pediatric Dentistry
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    • v.31 no.3
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    • pp.501-505
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    • 2004
  • Dermoid cyst is a developmental cyst that is lined by epidermis-like epithelium and contains dermal adnexal structures in the cyst wall. Dermoid cyst most occur in the eye brow although occasionally develop in other locations such as midline of the floor of the mouth, tongue, lip and buccal mucosa. The lesion is slow growing and painless without lympadenopathy. The contents of the dermoid cyst can be caseous or sebaceous. The size can vary from a few millimeters to 12cm in diameter. Histologically, dermoid cyst is lined by epidermis and adnexaes such as sweat gland, sebaceous glands and hair follicles are present in the cyst wall. The 2-year-old female of this case visited Department of Pediatric Dentistry, College of Dentistry, Yonsei University with a chief complaint of the emergence of mass on her upper lip. An excisional biopsy was carried out for a histological examination and sebaceous gland was observed in the cyst wall. The lesion was diagnosed as dermoid cyst. Dermoid cyst does not recur if complete excision is accomplished.

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Effect of deep transfer learning with a different kind of lesion on classification performance of pre-trained model: Verification with radiolucent lesions on panoramic radiographs

  • Yoshitaka Kise;Yoshiko Ariji;Chiaki Kuwada;Motoki Fukuda;Eiichiro Ariji
    • Imaging Science in Dentistry
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    • v.53 no.1
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    • pp.27-34
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    • 2023
  • Purpose: The aim of this study was to clarify the influence of training with a different kind of lesion on the performance of a target model. Materials and Methods: A total of 310 patients(211 men, 99 women; average age, 47.9±16.1 years) were selected and their panoramic images were used in this study. We created a source model using panoramic radiographs including mandibular radiolucent cyst-like lesions (radicular cyst, dentigerous cyst, odontogenic keratocyst, and ameloblastoma). The model was simulatively transferred and trained on images of Stafne's bone cavity. A learning model was created using a customized DetectNet built in the Digits version 5.0 (NVIDIA, Santa Clara, CA). Two machines(Machines A and B) with identical specifications were used to simulate transfer learning. A source model was created from the data consisting of ameloblastoma, odontogenic keratocyst, dentigerous cyst, and radicular cyst in Machine A. Thereafter, it was transferred to Machine B and trained on additional data of Stafne's bone cavity to create target models. To investigate the effect of the number of cases, we created several target models with different numbers of Stafne's bone cavity cases. Results: When the Stafne's bone cavity data were added to the training, both the detection and classification performances for this pathology improved. Even for lesions other than Stafne's bone cavity, the detection sensitivities tended to increase with the increase in the number of Stafne's bone cavities. Conclusion: This study showed that using different lesions for transfer learning improves the performance of the model.

Treatment of Steatocystoma Multiplex on Whole Body: A Case Report (전신적으로 발생한 다발성 피지 낭종의 치험례)

  • Jang, Pal Young;Shin, Sang Ho;Lee, Kyung Suk;Kim, Nam Gyun;Kim, Jun Sik
    • Archives of Plastic Surgery
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    • v.35 no.3
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    • pp.325-328
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    • 2008
  • Purpose: Steatocystoma multiplex is a rare benign disease that occurred multiply on whole body surface. Many physicians have tried managing steatocystoma in variable methods. However it is hard to define the optimal way to cure steatocystoma. We performed both aspiration and excisional method to study the usefulness of both methods. Methods: A 28-year-old woman has asymptomatic multiple subcutaneous nodules on whole body. Most lesions were aspirated with 26-guage needled 3 cc syringe but large and purulent three nodules were excised. Results: We diagnosed the lesion histologically as steatocystoma multiplex. Aspirated wound healed without scar, excised wound remained scar but esthetically acceptable. Axillary lesion contained so clustered type cysts that was difficult to aspirate whole cyst. Thus additional excisional method was needed. Conclusion: There are many practical methods to cure steatocystoma. However, there is no appropriate method to cure it. Therefore we should select different therapeutic method according to anatomical location and cyst size. Especially at subcutaneous fat-rich lesion like axilla and abdomen, it is better to excise the clustered cyst than to aspirate.

Treatment of large sized cystic lesion of the jaws with specific appliance for decompression:cases report (악골 내 거대 낭종성 병소의 감압술을 위해 고안된 장치를 이용한 치험례: 증례보고)

  • Jang, Chang-Su;Kim, Ju-Won;Yang, Seung-Bin;Yim, Jin-Hyuk;Kim, Jwa-Young;Yang, Byoung-Eun
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.37 no.2
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    • pp.133-136
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    • 2011
  • Cystic lesions on the jaws with expansion can invade the adjacent anatomical structure, infiltrate and expand the jaws, cause facial deformity, etc. There is great potential for pathologic fractures after cyst enucleation, and damage to the major structures like the nerve, artery. For these reasons, marsupialization and decompression are commonly used to reduce the cystic size. In 1947, Thomas first mentioned decompression that reduces the osmotic pressure in a cyst by making a hole in the cyst and insert a drain. In our cases, a large sized cystic lesion was treated with a specific device made from an orthodontic band and spinal needle. This device is easy and effective for applications and self irrigation.