• Investigative Magnetic Resonance Imaging
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• 제15권2호
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• pp.154-159
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• 2011

고환 표피 낭종은 드문 양성 종양으로, 모든 고환 종양의 1-2%를 차지한다. 양성 질환으로 고환의 보존이 가능하므로 수술 전에 정확한 진단이 가능하다면 불필요한 고환 절제술을 피할 수 있다. 저자는 오른쪽 음낭의 무통성 종괴로 내원한 18세 남자의 고환 표피 낭종 한 례를 경험하여 보고하고자 한다. 종괴는 초음파상 양파환 징후를 보였고 컴퓨터 단층 촬영에서는 종괴 내부에 곡선의 석회화가 관찰되었다. 자기공명영상 T2 강조영상에서 종괴는 내부에 교차하는 저 신호의 환을 동반하는 고신호 강도로 보였다. 확산강조 영상에서 이 종괴는 고신호 강도를 보이고 현상확산계수(ADC) 영상에서는 낮은 값을 보였으며 이와 같은 소견은 두개내 표피 낭종에서 보고된 바와 동일한 것이다. 기존의 자기공명영상에 확산강조 영상과 현상확산계수 영상을 추가로 시행한다면 고환 표피 낭종의 진단에 도움이 될 것으로 기대된다.

• 대한두개안면성형외과학회지
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• 제21권2호
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• pp.137-140
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• 2020

Epidermoid cysts are benign tumors that account for approximately 1% of intracranial tumors. In very rare cases, temporally located extradural intradiploic epidermoid cysts can cause neurological symptoms and skull perforation. Herein, we report the case of a 34-year-old woman who underwent successful treatment of an epidermoid cyst in the temporal region accompanied by neurological symptoms. Accurate radiological evaluation and complete removal of the tumor and capsule play a vital role in ensuring favorable long-term outcomes. Computed tomography and magnetic resonance imaging scans can provide an accurate assessment of the extent of intracranial expansion and invasion of the cerebral parenchyma, as well as enabling the precise localization and characterization of the bone defect and mass. In addition, collaborative surgery with a neurosurgeon is required for cases involving intracranial expansion and dural invasion.

• 대한소아치과학회지
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• 제47권4호
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• pp.463-468
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• 2020

유표피낭종은 구강 내에서 드물게 보이는 양성병소이며 선천적 혹은 후천적으로 발생할 수 있다. 이 병소는 대개 느리게 자라는 낭종으로, 저작이나 발음을 방해 할 정도로 크기가 커지거나 2차 감염이 발생하기 전 까지는 주로 무증상을 보인다. 따라서 진단이 지연되는 경우가 많으며, 신생아나 영유아에서 진단되는 경우는 매우 드문 병소이다. 유표피낭종은 대부분 구강저에서 발생하며 상순에서의 발생은 드물다. 이 증례에서는 29개월 환아의 상순 내측 점막에서 촉진되는 종물을 구강 내 접근법을 이용하여 외과적으로 적출하고, 조직 병리학적으로 유표피 낭종으로 진단하였기에 보고하는 바이다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제37권3호
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• pp.237-240
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• 2011

Epidermoid cysts presents as a nodular and fluctuant subcutaneous lesion beneath the skin and are most common in acne-prone areas of the head, neck and back. This cyst often arises after localized inflammation of the hair follicle and occasionally after the implantation of epithelium following trauma and surgery including a biopsy procedure. It is often associated with Gardner syndrome, particularly before puberty. The lesion is normally treated by a surgical excision or enucleation, and recurrence is uncommon. A 27 year old woman complained of a swelling of the left parotid gland when she visited our clinic. A cystic lesion was found in the left parotid gland from the high signal intensity on the MR images. Ultrasonography showed that the cystic lesion was heterogeneous echogenic. Six months earlier, botulinum toxin was injected in her left masseter muscles six months earlier and progressive swelling of the left parotid area was noticed four months after treatment. The lesion was surgically removed. It was encapsulated by a thin wall and filled mainly with keratin. The final diagnosis was an epidermoid cyst.

• 대한두경부종양학회지
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• 제24권2호
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• pp.211-213
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• 2008

Epidermoid cysts located in floor of mouth can be easily removed intraorally. The cysts inferior to mylohyoid muscle have been excised transcervically. However, an intraoral removal of a cyst extended inferior to mylohyoid muscle has not been reported yet. A 20-year-old female visited to the hospital with a cystic mass in submental region. Neck computed tomography revealed a 6.0${\times}$4.3cm sized circumscribed cystic mass in midline of submental area. The cyst lied external to the genioglossal and geniohyoid muscle, extending inferior to mylohyoid muscle. The mass was removed successfully by intraoral approach. It was performed under the exposure by the division of genioglossal and geniohyoid muscle, traction of the cystic wall after aspiration of the cyst, and digital compression externally.

• 대한후두음성언어의학회지
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• 제19권1호
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• pp.58-61
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• 2008

A 66-year-old woman described a 6-month history of hoarseness after upper respiratory infection. She was a house wife and referred from an outside clinic under a diagnosis of vocal fold nodules. Strobovideolaryngoscopy revealed bilateral vocal fold lesions, and decreased mucosal wave of both vocal folds. She was brought to the operating room for microsuspension laryngoscopy. Under general anesthesia, dual intracordal cysts on left vocal fold were completely resected with microflap technique. The lesion on the right vocal fold turned out to be a reactive fibrous mass, which was also resected. Dual intracordal cysts were confirmed histopathologically. The one was an epidermoid cyst lined with squamous epithelium, and the other was a mucus retention cyst lined with cuboidal epithelium. Postoperative voice was acceptable by the patient and the mucosal vibration has much improved after the surgery.

• 대한두경부종양학회지
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• 제6권1호
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• pp.29-33
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• 1990

Dermoid cyst of the floor of mouth is infrequent. This cyst has been classified as epidermoid, dermoid and teratoid cyst. Dermoid cyst is more common in young adults and no sex predilection and has generally been present for months to years before progressive enlargement causes interference with the mobility of the tongue and disturbance of articulation and mastication. The authors have recently experienced dermoid cyst of the floor of mouth which was confirmed histopathologically.

• Journal of Korean Neurosurgical Society
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• 제45권3호
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• pp.196-198
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• 2009

Hemifacial spasm (HFS) is almost always induced by vascular compression but in some cases the cause of HFS are tumors at cerebellopontine angle (CPA) or vascular malformations. We present a rare case of hemifacial spasm caused by epidermoid tumors and the possible pathogenesis of HFS is discussed. A 36-year-old female patient presented with a 27-month history of progressive involuntary facial twitching and had been treated with acupuncture and herb medication. On imaging study, a mass lesion was seen at right CPA. Microvascular decompression combined with mass removal was undertaken through retrosigmoid approach. The lesion was avascular mass and diagnosed with an epidermoid tumor pathologically. Eventually, we found a offending vessel (AICA : anterior inferior cerebellar artery) compressing facial nerve root exit zone (REZ). In case of HFS caused by tumor compression on the facial nerve REZ, surgeons should try to find an offending vessel under the mass. This case supports the vascular compression theory as a pathogenesis of HFS.

• 대한두개안면성형외과학회지
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• 제24권4호
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• pp.193-197
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• 2023

An epidermal cyst, also known as an epidermoid cyst or epidermal inclusion cyst, is the most prevalent type of cutaneous cyst. This non-cancerous lesion can appear anywhere on the body, typically presenting as an asymptomatic dermal nodule with a visible central punctum. In the case presented herein, an epidermal cyst with uncommon features was misdiagnosed as a lymphatic malformation based on preoperative magnetic resonance imaging (MRI). A 61-year-old man came to us with a swollen left cheek that had been present for 11 months. The preoperative MRI revealed a 3×3.8×4.6 cm lobulated cystic lesion with thin rim enhancement in the left masticator space. The initial differential diagnosis pointed toward a lymphatic malformation. We proceeded with surgical excision of the lesion via an intraoral approach, and the specimen was sent to the pathology department. The pathological diagnosis revealed a ruptured epidermal cyst, indicating that the initial diagnosis of a lymphatic malformation based on preoperative MRI was incorrect. Epidermal cysts located under the muscle with no visible central punctum are uncommon, but should be considered if a patient presents with facial swelling.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제31권6호
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• pp.531-534
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• 2009

Dermoid cysts located in the floor of the mouth are very rare developmental keratinizing squamous epithelium lined cysts. Anatomically, they are classified as sublingual (median genioglossal), submental (median geniohyoid) and lateral dermoid cysts, and they can be further classified as epidermoid, dermoid, and teratoid cysts by histology. We report a case of sublingual dermoid cyst in a 16-year-old boy presenting as a large sublingual swelling causing speech and swallowing difficulties and discuss the surgical treatment techniques and histopathological features of this lesion.