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Query: UMLS:C0018681 (headache)
 56,091 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Intracranial dermoid cysts are rare congenital lesions that result from abnormal sequestration of ectodermal cells during neural tube formation. Dermoid cysts are typically hypodense on computed tomography, but when hyperdense may mimic a hemorrhage. The authors report the case of a 16-year-old boy who presented with a history of chronic progressive headaches. Findings on a CT scan were indicative of hemorrhage. Magnetic resonance imaging revealed the lesion to be a dermoid cyst with unusual characteristics. Upon gross resection, the lesion appeared to be a dermoid cyst without hemorrhage, but histological evaluation revealed evidence of hemorrhage. The authors describe their experience and review the literature, emphasizing that a dermoid cyst may have unusual radiographic characteristics indicative of hemorrhage and may contain areas of hemorrhage on histological examination.
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PMID:Intracranial dermoid cyst mimicking hemorrhage. Case report and review of the literature. 1732 82

Primary intracranial squamous cell carcinoma is extremely rare, with most of the cases arising from malignant transformation of an epidermoid or a dermoid cyst. We report here a case of a 45-year-old male patient who presented with 1-month history of intermittent headache and recent onset of altered sensorium. Imaging revealed a midline posterior fossa mass lesion compressing the fourth ventricle and causing hydrocephalus. A provisional diagnosis of dermoid cyst was considered. Histopathological examination revealed a squamous cell carcinoma possibly arising from an underlying epidermoid cyst. This entity is being reported for its rarity.
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PMID:Primary intracranial squamous cell carcinoma arising in an epidermoid cyst--a case report and review of literature. 1782 93

We present a case report of a 41-year-old man with an acute headache and hydrocephalus caused by the dermoid cyst. The dermoid cyst of the third brain ventricle caused an acute hydrocephalus and an increased intracranial pressure (with neurological signs such as nausea, vomiting, oedema papilae n. optici) and, consequently, an acute intensive headache. Computed tomography scans demonstrated a mass in the third ventricle extending into the prepontine cistern, whereas any initially established cerebrospinal fluid ventriculoperitoneal shunt required further revision (Fig. 2, Ref. 12). Full Text (Free, PDF) www.bmj.sk.
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PMID:An acute headache and hydrocephalus caused by the dermoid cyst. 1934 83

Spindle cell lipoma of the suprasellar region has not been reported in the literature. We report a case of a 4-year-old male with a suprasellar spindle cell lipoma. The patient presented with headaches and visual disturbances. An imaging study revealed a 4 to 5-mm suprasellar mass that was initially thought to be a lipoma or dermoid cyst. Pathologic examination from the partial resection showed a circumscribed lesion consisting of mature adipose tissue with intermixed uniform spindle cells associated with a mucoid matrix, morphologically consistent with a spindle cell lipoma. The spindle cells and vasculature demonstrated focal positivity with CD34 antibody. There was no evidence of lipoblasts, mitoses, necrosis, or osseous tissue.
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PMID:Suprasellar spindle cell lipoma. 1943 96

A 32-year-old, right-handed man presented with chronic headache persisting for the past 5 years. On admission, neurological examination revealed mild papilledema and bitemporal defects of the visual fields. Computed tomography showed a hypodense lesion in the suprasellar region. Magnetic resonance imaging revealed a 2.2 x 2.4 x 2.5-cm heterogeneously hyperintense lesion in the suprasellar region and an infarct region in the right basal ganglia on the T(1)- and T(2)-weighted images. The lesion was subtotally removed because part of the capsule was tightly adherent to important surrounding neurovascular structures. Histological analysis confirmed the diagnosis of dermoid cyst. Ruptured intracranial dermoid cyst may manifest as infarction in the basal ganglia caused by localized arterial inflammatory reaction combined with compression of the right internal carotid artery.
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PMID:Ruptured intracranial dermoid cyst with infarction in the basal ganglia--case report. 2033 81

We report a rare case of spontaneous rupture of an asymptomatic, intracranial dermoid cyst. A 64-year-old man complained of transient dizziness. MRI incidentally disclosed a 20-mm-diameter cystic lesion in the left cerebellopontine angle. Since the cyst was asymptomatic, follow-up MRIs were performed. One year later, sudden headache and left oculomotor palsy occurred. MRI showed niveau formation within the cyst and scattered fat droplets within the cerebrospinal fluid space, which indicated a spontaneous rupture of the dermoid cyst. Since hydrocephalus on MRI and gait disturbance appeared 2 months later, the tumor was resected, and a ventriculoperitoneal shunt was inserted. The patient's symptoms disappeared, and there were no postoperative neurological deficits. The pathological diagnosis was dermoid cyst. Only 48 cases of spontaneous rupture of a dermoid cyst have been reported. All were symptomatic, and MRI showed a large cyst. Of these cases, none was detected incidentally. Therefore, this is the first case report of an incidentally found dermoid cyst that ruptured spontaneously. Although asymptomatic, small dermoid cysts are usually followed up by MRI without surgical intervention. The possibility of spontaneous rupture, which may give rise to hydrocephalus, as in this case, should always be kept in mind.
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PMID:[Case report: spontaneous rupture of an asymptomatic intracranial dermoid]. 2052 17

Almost all intracranial dermoid cysts typically display low-density lesions on plain computerized tomography (CT) scans due to abundant lipids content. CT hyperattenuating dermoid cyst (CHADC) is very uncommon with only nine case reports in the literature update, which occurs exclusively in the posterior fossa. Moreover, CHADC with mural nodule is exceptionally rare, and only one such case was documented previously. Here, we report a new case of cerebellar CHADC with mural nodule in a 14-year-old male patient who presented with a 4-week history of dull headache and 5-day history of gait disturbance. With an average attenuation value of 89.9 Hounsfield units on CT scans, the lesion mainly displayed T1 hyperintensity, T2 hypointensity, and FLAIR hypointensity on magnetic resonance imaging. The patient underwent lesion gross total resection and symptomatic improvement, and final pathology was consistent with dermoid cyst. For further clarifying the mechanism of unusual CT hyperdensity, we sampled the cystic content and quantified its protein, calcium, and cholesterol, and our result suggested the high protein, high calcium, and low lipids in contents was the main mechanism of increased CT attenuation for CHADC.
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PMID:Unusual CT hyperattenuating dermoid cyst of cerebellum: a new case report and literature review. 2144 32

Mature cystic teratoma (dermoid cyst) inside the Sylvian fissure is rare. A 14-year-old boy presented with 2 episodes of generalized tonic-clonic seizures. Using a fat-suppressed, T1-weighted sequence, magnetic resonance imaging revealed a hypointense nonenhancing mass in the left Sylvian fissure. He underwent left pterional craniotomy for total tumor resection. The pathological diagnosis was mature cystic teratoma (dermoid cyst). Headache and seizures are the leading symptoms. Cyst rupture causes inflammation of cholesterol crystals, and the cyst contents may cause seizure. Surgical resection is the treatment of choice, but radical resection is not advised if critical neurovascular structure can be injured.
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PMID:Mature cystic teratoma (dermoid cyst) in the sylvian fissure: a case report and review of the literature. 2219 May 4

The authors are presenting here a case of dermoid cyst in 50-year-male who presented with 3 months history of headache.
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PMID:Dermoid cyst in brain. 2267 51

We report a 16-year-old girl who had stunted growth and primary amenorrhea presenting with headache and vomiting. MRI of brain showed posterior fossa dermoid cyst with hydrocephalus and empty sella. Growth hormone (GH), Leutinizing hormone (LH) and Follicular stimulating hormone (FSH) were grossly reduced on endocrinological work-up. She underwent suboccipital midline craniectomy and complete excision of dermoid cyst .She had no additional deficit after the surgery. She had menarche six months after the surgery and developed adequate secondary sexual characters, however her height remains subnormal at follow-up after 2 years as compared to age matched controls. We briefly review the radiological features, pathogenesis and outcome of this underestimated entity.
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PMID:Primary amenorrhea due to empty sella: an underestimated entity. 2284 75


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