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PubMed2004

Sylvian fissure dermoid cyst with intratumoral hemorrhage: case report.

It is rare for a dermoid cyst to develop intratumoral hemorrhage. A 61-year-old woman had a sudden-onset left hemiparesis and slow response to verbal requests for one week when unenhanced computed tomography scanning revealed a mixed iso- and hypo-dense heterogeneous lesion in the right fronto-temporal area. T1-weighted magnetic resonance imaging (MRI) of the brain showed a mixed hyper- and hypo-intense tumor in the right fronto-temporal area. The tumor became hyperintense on T2-weighted MRI and was faintly enhanced at tumor periphery on T1-weighted MRI. The tumor was excised and pathological examination revealed a dermoid cyst with intratumoral hemorrhage. The post-operative course was complicated by hemorrhage in the tumor bed, which was evacuated immediately. The patient improved and could walk without support two weeks after the second operation. After 1 year of follow-up, she was well and without neurological deficits. To the best of our knowledge after a literature review, only two previous cases of dermoid cyst have featured intratumoral hemorrhage.

Brain Stem Neoplasms↗
PubMed2005

Intrathyroid dermoid cyst presenting as a unilateral "Cold" nodule.

A dermoid cyst arising in the left lobe of the thyroid gland in a 5-year-old boy was managed with a left hemi-thyroidectomy. While congenital lesions feature frequently in the differential diagnosis of childhood neck masses, dermoid cysts presenting as a unilateral neck mass are rare. When found within the thyroid, their pathogenesis may be explained by a disruption of normal thyroid development. Excision appears the treatment of choice.

Child, Preschool↗
PubMed2006

Short-term morbidity and long-term recurrence rate of ovarian dermoid cysts treated by laparoscopy versus laparotomy.

OBJECTIVE: To compare the short-term morbidity and the long-term recurrence rate of ovarian dermoid cysts in women treated conservatively by laparoscopy with the outcomes in women treated by laparotomy. METHODS: This retrospective multicentre cohort study compared the outcomes of removal of dermoid cysts by laparoscopy with removal by laparotomy. All specimens were confirmed histologically as dermoid cysts. We reviewed all medical records and identified all surgical interventions for dermoid cysts over a 10-year period (1993-2003) in two academic centres in Quebec City. Of the 299 women treated for ovarian dermoid cysts, 167 were treated by laparotomy and 132 were treated by laparoscopy. To compare short-term morbidity, we excluded those who had undergone ophorectomy or any concomitant surgery, and we consequently reviewed the records of 98 patients in the laparotomy group and 100 patients in the laparoscopy group. To compare long-term recurrence rates we excluded only those patients who had had oophorectomy. In total, 245 women with available follow-up were identified as having ovarian cystectomy (95 in the laparoscopy group and 150 in the laparotomy group). Two-tailed Fisher exact test was used for analysis of categorical variables, and Student t test or Wilcoxon rank test were used for analysis of continuous variables comparing the two groups. Life table analysis using the Kaplan-Meier method was performed to assess the risk of long-term recurrence. RESULTS: The mean diameter of the cyst in women who had a laparotomy was significantly larger than in women who had laparoscopy (8.27 cm vs. 5.94 cm), and significantly more women in the laparotomy group had bilateral cysts (16% vs. 5% in the laparoscopy group). In women who had laparoscopy, operating time was greater (P = 0.0363), but blood loss was less (P < 0.0001) and duration of hospital stay (P < 0.0001) was shorter. Spillage of the cyst's contents occurred in 18% of cases in the laparoscopy group and in 1% in the laparotomy group. Conversions of laparoscopy to laparotomy occurred in 11% of cases, mainly because of cyst size. Postoperative complication rates were similar in the two groups. Reintervention rate was 4.2% in the laparoscopy group and 0% in the laparotomy group (P = 0.0217). Using life table analysis, the probability of recurrence at two years was 7.6% (95% confidence intervals 2.9, 19.2) in the laparoscopy group and 0% in the laparotomy group. CONCLUSION: Ovarian cystectomy performed by laparoscopy is associated with a higher incidence of intra-abdominal spillage than laparotomy, but this not associated with any increase in morbidity. Laparoscopic treatment results in a shorter hospital stay and less intraoperative blood loss than laparotomy, but it is associated with a significantly higher risk of recurrence.

Adult↗
PubMed1995

[Orbital dermoid cysts. Apropos of a case].

We report the case of a 53 year-old female patient with an orbital dermoid cyst. A mass effect with proptosis, hypotropia and choroidal folds was noted. Imaging aspects (radiography, ultrasonography and computed tomography) were highly suggestive of a deep orbital dermoid cyst. A fronto-temporal neuro-surgical approach allowed complete removal of the tumour. Histopathology confirmed the diagnosis of dermoid cyst. The incidence of orbital dermoid cyst falls significantly after the second decade of life thus making our clinical case original.

Dermoid Cyst↗
PubMed2003

[Bladder fistula of an ovarian dermoid cyst].

We report a case of right ovarian dermoid cyst fistulized in the bladder and revealed by recurrence urinary infections. The diagnostic has not been conformed but 5 years after the urinary first manifestations. The cystoscopy has been a cardinal importance but the right seat of the lesion has been determined only during laparotomy. This unusual complication of ovarian dermoid cyst must call the practitioner's attention to urinary symptoms with a pelvic tumour. Moreover, the left ovary agenesis and the young patient's age have constrained the surgeon to preservative method. The functional efficiency of this method has been proved by the periods recovery, 5 months later.

Adult↗
PubMed1976

Dermoid cysts of the head and neck in children.

The sporadic occurrence of several dermoid cysts of the head and neck in children led us to investigate the relative incidence in a series of 594 epidermal cysts in which 33 such lesions were found. We review the classification of dermoid cysts according to their embryogenesis and location to help avert diagnostic or therapeutic pitfalls. This study emphasizes the importance of adequate general anesthesia and excision of these interesting lesions.

Adolescent↗
PubMedDate not supplied

Dermoid cyst of the pancreas: a rare cystic neoplasm.

Dermoid cysts of the pancreas, also called cystic teratomas, are a rare entity and are included in the group of neoplasms with a germ cell origin. Only twelve cases have been described in the world literature. The symptomatology is due to tumor compression of the neighboring tissues. Ultrasonography and computed tomography may be helpful, but there are no pathognomonic data for their preoperative recognition. The differential diagnosis should include all other cystic tumors of the pancreas. Complete surgical removal is mandatory. We describe the diagnostic and surgical procedures in a 74 year-old man with a pre-operatively unsuspected dermoid cyst. We review the previously published cases and emphasize the appropriate therapeutical management.

Aged↗
PubMed2003

Simultaneous ipsilateral temporal fossa and orbital dermoid cysts.

PURPOSE: To describe a case of simultaneous dermoid cysts in the lateral orbit and temporal fossa. DESIGN: Interventional case report. METHODS: A 7-year-old boy with a lateral orbital mass and infratemporal fossa mass underwent computed tomography and surgical excision. RESULTS: Intraoperatively, two distinct cystic lesions were identified. The orbital lesion extended just beneath the lateral rim. The temporal fossa lesion extended posteriorly along the temporal fossa. No bony defect in the lateral orbital wall was identified, and each distinct lesion was completely excised. CONCLUSIONS: To our knowledge, this is the first reported case of multiple dermoid cysts in the orbital region. When imaging studies demonstrate separate cystic lesions and do not reveal a bony defect in the lateral orbital wall, multiple lesions should be suspected.

Child↗
PubMed1986

Dermoid cysts of the ovary.

From 1965 to 1984, 105 cases of ovarian dermoid cysts have been diagnosed and treated at the First Clinic of Obstetrics and Gynecology, Catania University, Catania, Italy. The patients were aged between 9 and 70 years, with a higher frequency of dermoid cysts between 26 and 30 years (21.91%, 23 cases). In 0.95% (1 case) the patient was premenarchal, 84.76% (89 cases) in fertile age, and in 14.29 (15 cases) in menopause. 35.22% (37 cases) were nulliparous with an average of 31 years, and 64.76% (68 cases) pluriparous with an average age of 38.9 years. In 4.76% (5 cases) the patients had already been treated for dermoid cysts. The asymptomatic form occurred in 13.33% (14 cases), while in 9.52% (10 cases) of cases there was torsion of the cyst. In 89.53% (95 cases) the cyst was monolateral, double in the same ovary in 0.95% (1 cases), and bilateral in 9.52% (10 cases). Epithelial cancerous degeneration occurred in 1.95% of cases (2 cases). In 11.43% (12 cases) enucleation of the cyst was performed while in the other cases therapy was chosen in relation to age, parity, and associated gynecological pathology of the patients. The Authors compare their data with that in literature.

Adolescent↗
PubMed1981

Dermoid cysts of the ovary: their ultrasonographic appearances.

Ultrasonograms of 45 patients with 51 surgically proved benign cystic teratomas (dermoid cysts) of the ovary were reviewed to evaluate the ultrasonographic appearance of this entity. Contrary to several recent reports stressing a "typical" appearance for ovarian dermoid cysts, ie, an echogenic focus with acoustic shadowing situated within a predominantly cystic mass, the authors observed a much broader spectrum of appearances. Thirty-three percent of the cases demonstrated "typical" findings, 23.5% were predominantly solid, 20% were almost entirely cystic, and 23.5% were not visible. Ultrasound and conventional radiography in patients with dermoid cysts were compared: Ultrasonography contributed significantly to the correct diagnosis in the majority of cases. Because ultrasonography lacks ionizing radiation, and its use may reveal unrelated pelvic pathology, it should be the initial diagnostic modality in the examination of patients with suspected dermoid cysts of the ovary.

Dermoid Cyst↗
PubMed1984

[Adenosquamous carcinoma arising in a dermoid cyst (benign cystic teratoma) of the ovary--a case report].

An 89-year-old woman with adenosquamous carcinoma arising in a dermoid cyst (benign cystic teratoma) of the ovary is reported. The malignant change of a dermoid cyst is rare. To our knowledge, this is the first report case of an adenosquamous carcinoma arising in a dermoid cyst of the ovary. Moreover, this case is the oldest patient on record. It is important that dermoid cyst be examined carefully.

Adenocarcinoma↗
PubMed1981

Massive dermoid cysts of the floor of the mouth in children.

Dermoid cysts of the floor of the mouth are very rare in children. True dermoid cysts occur in this site in less than 2% of all such cysts including those presenting in adults. Four massive (5-8 cm diameter) such cysts in children, which by virtue of their size threatened the airway, are reported. In the four cases reported, each demonstrated a distinct "stalk" inserting at the genial tubercle of the mandible and the cyst lay mostly superior to the mylohyoid muscle. This "stalk" provides a potential pitfall for the unwary surgeon who may leave a remnant if the "salk" is transected during removal and has not been previously reported. The embryologic origins of these large masses are uncertain and with the description of such a stalk would seem to be more complex than a simple developmental inclusion. The clinical presentations of these tumors and their possible pathogenesis are discussed.

Adolescent↗
PubMed1990

[Dermoid cysts of intracranial location].

The paper provides the reported data on the incidence, localization, clinical manifestations, course, diagnosis and treatment of dermoid cysts. Describes three cases of dermoid cysts verified by computed tomography and surgery. Presents a case of an atypical dermoid cyst with an outbreak of the cyst contents to the brain ventricles and origination of purulent meningitis. Shows the high information content of computed tomography in respect to intravital diagnosis of that type of pathology.

Aged↗
PubMed2001

Cervical dermal sinus associated with dermoid cyst.

We report a rare case of cervical dermal sinus associated with a dermoid cyst in a 10-month-old infant, who presented with a 1-month history of motor weakness of the right upper extremity. Magnetic resonance imaging showed an intradural extramedullary dermoid cyst extending from C3 to C4, which was connected with the skin dimple along the sinus tract. Total excision of the dermoid cyst and the sinus tract with C3-5 laminectomy resulted in good functional recovery.

Cervical Vertebrae↗
PubMed1998

Sonographic diagnosis of a retroperitoneal dermoid cyst in a young girl.

We describe the detection and management of a retroperitoneal dermoid cyst in a young girl. Transabdominal ultrasound revealed in the pelvis a complex mass with anechogenic and echogenic components characteristic of a dermoid cyst. Initially, it was presumed to be of ovarian origin, because extragonadal dermoid cysts are very rare in adolescence; however, the findings on physical examination were normal. Laparoscopy was performed but failed to identify a cyst. Ultrasound examination was repeated intraoperatively and confirmed the presence of the cyst, which was then removed by laparotomy from the retroperitoneum. This case illustrates the significance of ultrasonography in the diagnosis of a rare condition in adolescent gynecology and demonstrates the possibility of performing ultrasound scanning intraoperatively to confirm the presence of a mass which was not identified by laparoscopy.

Adolescent↗
PubMed1991

Sebaceous tumors arising in ovarian dermoid cysts.

The clinicopathologic features of five cases of sebaceous tumors arising in ovarian dermoid cysts and of three previously reported cases are reviewed. They occurred in women with an average age of 58 years and were classified as sebaceous adenoma (five cases), basal cell carcinoma with sebaceous differentiation (two cases), and sebaceous carcinoma (one case). Follow-up information was available for all cases. One patient with basal cell carcinoma with sebaceous differentiation had a pelvic recurrence 2 1/2 years after diagnosis. In no other case did the sebaceous tumor recur or metastasize during follow-up periods of 1 to 6 years. One patient died of a squamous cell carcinoma that arose in the same dermoid cyst as the sebaceous tumor. These tumors represent a rare form of monodermal neoplasia in dermoid cysts.

Adenocarcinoma↗
PubMed1991

Characteristic fat-fluid level at ultrasonography of ovarian dermoid cyst.

An uncommon sonographic pattern was observed in 2 dermoid cysts. An echogenic upper and an echo-free dependent component were separated by a horizontal delineation, an observation that could be reproduced in a laboratory model. We believe that this finding is pathognomonic for a dermoid cyst.

Adipose Tissue↗