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PubMed2002

Uncommon dermoid cyst presented in the mandible possibly originating from embryonic epithelial remnants.

A case of an intraosseous dermoid cyst that had developed in the mandible of a 29-year-old-male is reported. The patient was admitted to our dental clinic complaining of pain in the right molar area of the mandible. The patient had no particular history of the present illness. A radiographic examination revealed diffuse bone absorption in the right molar area. A biopsy showed the lesion to be an intraosseous dermoid cyst which was surgically enucleated. Microscopic examination of the excised tissue showed it to be well circumscribed with fibrous tissues, and the cystic space lined by keratinized epithelium. In addition, sweat glands and hair follicle-like skin appendages were identified in the cystic wall, where a daughter cyst was also found. We suggested that this uncommon cyst had developed in the mandible, as a result of embryonic epithelium migration. The patient remained in good health during the three year follow-up.

Adult↗
PubMed1992

Occipital encephalocele associated with a dermoid cyst.

The case of a neonate with a dermoid cyst originating within an occipital encephalocele is reported. The finding of the tumor was made during the routine repair of the meningoencephalocele. To our knowledge this is the first time that this association has been described.

Brain Neoplasms↗
PubMed1993

Dermoid cyst of the floor of the mouth.

Sublingual dermoid cysts are uncommon in the head and neck region. They are most often seen in young adults and can become unusually large with few symptoms. A case is presented to demonstrate the slow, expansive growth pattern and relatively painless swelling in the floor of the mouth that occurred over a 9-year period.

Adult↗
PubMedDate not supplied

Liesegang rings in a dermoid cyst of the floor of the mouth. Report of a case with cytologic findings.

BACKGROUND: Eosinophilic, ring-shaped structures, referred to as Liesegang rings (LRs), have been identified in aspirates from many organs, usually in relation to cystic or inflammatory lesions, but never before in relation to a dermoid cyst. CASE: LRs were intermingled with squamous cells in aspirates from a cyst of the floor of the mouth. The patient, a 23-year-old man, presented with a sublingual mass that had recently grown. Histopathologic study showed a ruptured dermoid cyst with mural foci of granulomatous foreign body reaction mixed with numerous ringlike structures, LRs. CONCLUSION: To the best of our knowledge, this is the first reported case of LRs in a dermoid cyst. Pathologists should be aware of this association when diagnosing cystic lesions.

Adult↗
PubMed1997

Chewing-induced visual impairment from a dumbbell dermoid cyst.

A 29-year-old woman presented with a 1-year history of blurred vision in her left eye while chewing. Examination revealed a rubbery mass with ill-defined borders in the superotemporal brow region. Imaging studies demonstrated a cystic lesion extending from the temporal fossa into the orbit through a bony defect in the lateral orbital wall, assuming a dumbbell configuration. Histopathology of the excised specimen confirmed the clinical diagnosis of a dermoid cyst of cutaneous origin. We believe that the patient's visual disturbance was caused by transient displacement of orbital contents by the dermoid cyst as it was compressed into the orbit during mastication. Dermoid cysts are frequently associated with bony defects, which may require preoperative imaging and may produce unexpected symptoms.

Adult↗
PubMed2000

[Spinal dermoid cyst secondary to myelomeningocele repair: a case report].

Dermoid and epidermoid tumors arise from the invagination of epidermal elements into the neural tube during the embryonic period. However, many studies have reported that dermoid and epidermoid tumors occur 5 to 10 years after the first operation on myelomeningocele patients. A seven-year-old male with myelomeningocele which had been repaired in his neonatal period, presented leg pain and deterioration of gait disturbance and urinary incontinence. Neuroradiological examinations revealed a spinal dermoid cyst at the repaired myelomeningocele and tethered spinal cord. We removed the tumor and untethered the tethered spinal cord. Postoperatively, the patient's leg pain, gait disturbance and urinary incontinence improved immediately. Inappropriate surgical treatment of spina bifida may cause a second lesion, which leads to tethered-cord syndrome. We suggest that proper surgical treatment, early checkup and neuroradiological evaluations are very important for spina bifida patients who show signs of neurological deterioration. For the best treatment, neurological, urological and orthopedical follow-up study after the first repair operation is necessary.

Child↗
PubMed2001

Klippel-Feil syndrome in association with posterior fossa suboccipital dermoid cyst.

We present the second case of Klippel-Feil syndrome in association with a posterior fossa dermoid cyst extending through the occipital bone and presenting as a suboccipital subcutaneous mass. We describe its radiographic, CT, and MRI appearances as well as on MRI diffusion-weighted images. Posterior cranial fossa dermoid cysts and sinuses should be added to the list of congenital abnormalities which must be sought in patients with Klippel-Feil syndrome. Diffusion-weighted images of brain may differentiate these masses from cerebral spinal fluid collections.

Adolescent↗
PubMed1998

Deep frontotemporal dermoid cyst presenting as a discharging sinus: a case report and review of literature.

The commonest location for dermoid cysts in the head and neck is at the frontotemporal or brow region. They usually present as discrete slow growing masses located superficially at the angle of the brow. The presentation as a discharging sinus in the frontotemporal region is rare. In contrast, it is common for nasal dermoids to present as sinuses or fistulae (10-45%) and with a tract extending deep to involve the underlying bone or intracranium. In view of their differences in presentation, preoperative CT scans are generally recommended for the nasal dermoids but not for the frontotemporal dermoids. We report a rare case of a deep frontotemporal dermoid cyst presenting as a discharging sinus at the right temporal region in a girl aged 2 years and 6 months. It had a sinus tract extending deep to form an intraosseous cyst in the frontal and sphenoid bone. The base of the cyst was attached to the dura of the middle cranial fossa. Only a few similar cases were reported in the literature. In the light of our experience with this case, we recommend that this rare type of frontotemporal cyst sinus be operated only after a CT or MRI scan.

Bone Diseases↗
PubMedDate not supplied

Diagnosis of ruptured intracranial dermoid cyst: value MR over CT.

The CT and MR findings of seven patients with pathologically proved ruptured dermoid cysts were reviewed to analyze the MR characteristics and to see if MR evaluation had significant advantages over CT. In six cases, both CT and MR identified fatty material in the CSF spaces. Hemorrhage complicated preoperative diagnosis in one case. Patterns of extraaxial fat distribution were as follows: intraventricular fat/CSF levels (three patients), generalized subarachnoid spread (six patients), and localized subarachnoid spread with sulcal widening (one patient). There was no correlation between fat distribution and clinical symptoms. MR showed the vascular involvement better than CT did in five of seven cases, and showed extension of the cysts into the skull base in two cases. Signal intensity of the solid mass was low on T1-weighted MR images and inhomogeneously high on T2-weighted images, which correlated pathologically with the presence of crystal cholesterol, hair, sebaceous glands, and epithelial cells in all cases. On MR, brain parenchyma showed little edema or other reaction to the masses, which were typically large. The value of MR over CT in the examination of ruptured dermoid cysts is the conspicuity of the extent of subarachnoid spread, involvement of the extraaxial structures, and evidence of vascular compromise, which can obviate angiography. MR had no advantage over CT in making the initial diagnosis of ruptured dermoid, but it would be the preferred preoperative study.

Adult↗
PubMed2006

Adult onset tethered cord syndrome associated with intradural dermoid cyst. A case report.

STUDY DESIGN: A case report and a review of literature. OBJECTIVES: To describe a rare case of adult onset tethered cord syndrome associated with intradural dermoid cyst. SETTING: General Orthopedics, Japan. METHODS: A 50-year-old woman was referred to us because of right leg pain and pollakiuria. Neurological examinations and radiological assessments including myelography, computerized tomography scan and Magnetic resonance image were carried out. We diagnosed it as the adult onset tethered cord syndrome associated with an intradural cystic lesion. RESULTS: The cystic lesion was totally removed following laminectomy from L5 through S4. Histologically, the tumor was diagnosed as a dermoid cyst. CONCLUSIONS: Intradural dermoid could produce adult onset tethered cord syndrome, but it was not reported in the English literatures to our knowledge.

Cauda Equina↗
PubMed2000

Submucosal dermoid cyst of the rectum: report of a case.

Despite the relatively common incidence of sacrococcygeal dermoids, rectal cysts are uncommon. We report the case of a submucosal dermoid cyst occurring in the rectum. A 30-year-old woman visited the Gynecology Department because of pregnancy. A pelvic tumor was accidentally found during the checkup after miscarriage. A barium enema showed an anterior shift of the rectum by the presence of the tumor. Computed tomography and magnetic resonance imaging revealed a tumor located posterior to the rectum occupying almost the entire pelvic cavity, and the tumor was resected. The tumor was located in the submucosal layer of the posterior rectal wall and was well circumscribed. The resected tumor was a cyst entirely covered with a fibrous and firm capsule, which was filled with an amorphous white creamy substance. The histological findings showed the cyst consisting of a keratinizing stratified squamous epithelium with sebaceous gland and hair follicles, which was compatible with benign cystic teratoma. Primary rectal teratoma is very rare and only 36 cases have been reported in the literature worldwide. Furthermore, while the majority of cases were polypoid-shaped dermoid cysts protruding into the rectal lumen, only 3 cases were submucosal dermoid cysts. Therefore, such cases are considered to be extremely rare.

Adult↗
PubMed2003

Surgical treatment of ovarian dermoid cysts: a comparison between laparoscopic and vaginal removal.

BACKGROUND: In the last years transvaginal ultrasonographic diagnosis of ovarian dermoid cyst together with laparoscopic approach have greatly improved the treatment of this benign lesion. Vaginal approach with laparoscopic assistance has been proposed as an alternative to total laparoscopic removal. METHODS: A retrospective comparison between total laparoscopic (56 patients) and direct vaginal removal (30 patients) of ovarian dermoids. RESULTS: There were few, but significant, advantages of vaginal removal, especially regarding operating time, intraperitoneal spillage of dermoid tissue and post-operative outcome. CONCLUSION: Vaginal approach to the removal of dermoid cysts can be considered a safe alternative procedure to laparoscopy.

Adolescent↗
PubMed1994

Laparoscopic Treatment of Benign Ovarian Dermoid Cysts

Forty-four women underwent laparoscopic surgery for treatment of 49 benign dermoid cysts in 1992 and 1993. Four patients presented with bilateral ovarian masses and one patient had two teratomas within one ovary. In the majority of cases (78.9%) the correct diagnosis was made preoperatively by pelvic examination and vaginal ultrasound. The average tumor size was 5.5 cm, ranging from 1 to 11 cm. Preservation of the ovary was achieved in most cases (40/81.6%). Uni- or bilateral adnexectomy was the treatment of choice in all postmenopausal women (5); in the remaining four patients salpingo-oophorectomy was performed due to torsion of a cyst (1), extensive adhesions (1) and large tumor size (2). CA 19-9 levels were elevated in 11 out of 20 patients, reaching a maximum value of 3,400 U/ml. No severe complications were encountered: two patients developed fever postoperatively, one of whom was suspected of having a chemical granulomatous peritonitis. We conclude that laparoscopic management of benign dermoid cysts is safe and effective and can therefore be highly recommended.

Journal Article↗
PubMedDate not supplied

[Dermoid cysts of the orbit spreading into the cranial cavity].

Operations were performed through a transcranial approach on 12 patients with dermoid cysts of the orbit spreading into the cranial cavity. All patient had a defect in the orbital roof which extended to the lateral wall in 8 patients. The capsule of the cyst was connected with the dura mater and the orbital periosteum with adhesions. With the use of an operative microscope or operative magnifying glass and microsurgical instruments the dermoid cysts were removed without injuring the dura mater and orbital periosteum and good functional and cosmetic results were produced.

Adult↗
PubMed2006

Lateral dermoid cyst.

This is an unusual case of a lateral dermoid cyst that caused some diagnostic confusion.

Adult↗
PubMed2006

Unusual MR presentation of occult spinal dysraphism with lumbosacral lipoma and dermoid cyst.

CASE REPORT: We describe a case with tethered cord syndrome due to the association of intradural lipoma and a dermoid cyst at the filum terminale that had an unusual magnetic resonance (MR) appearance. DISCUSSION: Although both pathologies usually demonstrate a similar intensity on MR images, the involvement of a capsule filled with hair in the dermoid cyst, which presented hypointensity, may be a clue to be differentiated from lipoma on preoperative MR images.

Abnormalities, Multiple↗
PubMed1985

Dermoid cyst of the Eustachian tube.

A case of congenital dermoid cyst of the Eustachian tube is reported. Only seven similar cases have been found in our review of the literature. The embryology and usual mode of presentation of these cysts are discussed. Finally, a new surgical approach using a combined retro-auricular and protympanic route is presented.

Dermoid Cyst↗