A Cervical and a Lumbar Pilonidal Sinus Communicating with Intraspinal Dermoids

Sachs, Ernest; Horrax, Gilbert

doi:10.3171/jns.1949.6.2.0097

Cited by 74 publications

(21 citation statements)

References 23 publications

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“…15 The third theory, which seems to be supported by the majority of authors, is that teratoma arises from multipotential germinal cells that are misplaced in early embryonic development. 16,17 Rewcastle, however, has suggested that teratoma arises not from simple misplacement of normally developing somatic cells but from fusion of two misplaced haploid germ cells. 18 Originally, tridermal tumors were termed teratomas.…”

Section: Discussionmentioning

confidence: 99%

“…18 Originally, tridermal tumors were termed teratomas. 17 Although a teratoma is a true neoplasm composed of all three germinal layers, the presence of only two germinal components does not necessarily rule out this diagnosis. Derivatives of one or two germ layers tend to overgrow the others, so that the total number of germ layers may be di cult to ascertain.…”

Section: Discussionmentioning

confidence: 99%

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Intramedullary teratoma of the spine: report of two adult cases

et al. 2002

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Study design: Two case reports of intramedullary teratoma in the spinal cord of adults, and a review of the literature. Objective: To investigate and describe unusual cases of spinal teratoma using MRI to de®ne features that may be used to avoid misdiagnosis. Setting: A department of orthopedic surgery in Japan. Methods: One patient, a 37-year-old woman, was referred because of gait disturbance. She was evaluated by myelography, CT scan with myelography, and MRI. T12 through L1 laminoplasty was performed and the tumor was subtotally removed. The other patient, a 56-year-old man, was referred because of muscle weakness and sensory disturbance. MRI revealed multiple spinal tumors. C4 through C6 laminoplasty and T12 through L2 laminoplasty were performed, and the tumors in these regions were subtotally removed. Results: In Case 1, the postoperative course was excellent, and histological examination of the resected specimen revealed a spinal teratoma consisting of ectodermal and mesodermal elements. In Case 2, the symptoms were resolved after surgery, and ectodermal, mesodermal and endodermal elements were revealed. Conclusions: Although intramedullary teratomas are very rare in adults, they need to be considered in di erential diagnosis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Intramedullary teratoma of the spine: report of two adult cases

et al. 2002

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“…True teratomas are histologically characterized by the presence of three germinal layers. 7,[10][11][12] Tapper and Lack 11 reviewed 256 teratomas in children, and only four were located inside the spinal canal. Sloof et al 2 reported 301 intramedullary spinal cord lesions and distinguished only two cases of teratomas.…”

Section: Discussionmentioning

confidence: 99%

Coexistence of spinal intramedullary teratoma and diastematomyelia in an adult

et al. 2006

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Study design: A case report of intramedullary spinal cord teratoma with remote diastematomyelia in a female adult.Objective: To present a rare case of a dysembryogenic spinal tumor with concurrent split cord malformation and to define the importance of early surgical removal of the tumor. Setting: A department of neurosurgery in Greece. Methods: A 44-year old woman, presented with progressive lower limb muscle weakness, gait disturbances and dysesthesias in the trunk and lower extremity. She underwent plain radiographs, CT and MRI scan, which revealed an exophytic intramedullary spinal cord tumor at the level of T8-T10 and distant diastematomyelia in the upper lumbar spine (L2-L3). She underwent surgical intervention. The tumor was subtotally removed. No attempt was made to treat diastematomyelia. Results: Postoperatively, the patient's neurological status started to improve gradually. After 1 year she exhibited better strength in the lower limb muscles and improved sensation. The histological examination demonstrated mature spinal teratoma consisting of ectodermal, mesodermal and endodermal elements. Conclusions: In adult patients with intramedullary masses of possible dysembryogenic origin, the whole spine must be examined for additional dysraphic lesions. The choice and the timing of a surgical intervention are strongly dependent on the clinical picture.

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“…After several descriptive definitions were proposed, Sachs and Horrax [6] suggested in 1949 to differentiate spinal dermoid from epidermoid tumors by the presence of dermis and ‘dermal glands’. The etiology of spinal dermoid and epidermoid tumors is not exactly understood.…”

Section: Introductionmentioning

confidence: 99%

“…Acquired or iatrogenic tumors may arise from implantation of epidermal tissue into the subdural space during needle puncture [7,8,9,10,11,12,13,14,15] or during surgical procedures [16,17,18,19,20,21,22]. Congenital dermoid and epidermoid tumors may develop from displaced cutaneous ectoderm during neural tube formation [6, 9,23,24,25,26,27]. The clinical presentation of a patient with a spinal dermoid or epidermoid tumor depends on the location and extent of the tumor.…”

Section: Introductionmentioning

confidence: 99%

Intraspinal Dermoid and Epidermoid Tumors: Report of 18 Cases and Reappraisal of the Literature

et al. 2009

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Intraspinal dermoid and epidermoid tumors are two histopathological subtypes of cutaneous inclusion tumors of the spine. This classification is based on obsolete embryological knowledge. In fact, according to current embryology, both tumor types consist of ectodermal derivatives. Therefore, we hypothesized that dermoid and epidermoid tumors do not differ in clinical practice. To explore this hypothesis, we studied the clinical, radiological and intraoperative findings of 18 patients, and related these findings to the histopathological characteristics of the tumor. No differences were found between dermoid and epidermoid tumors regarding clinical presentation, radiological examination and outcome, while intraoperative diagnosis by the surgeon correlated with the histopathological diagnosis in only 8 of 18 cases. Therefore, the histopathological difference between intraspinal dermoid and epidermoid tumors is not important in clinical practice and should be avoided. A new nomenclature is proposed in which both tumor types are referred to as ‘spinal cutaneous inclusion tumors’.

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A Cervical and a Lumbar Pilonidal Sinus Communicating with Intraspinal Dermoids

Cited by 74 publications

References 23 publications

Intramedullary teratoma of the spine: report of two adult cases

Intramedullary teratoma of the spine: report of two adult cases

Coexistence of spinal intramedullary teratoma and diastematomyelia in an adult

Intraspinal Dermoid and Epidermoid Tumors: Report of 18 Cases and Reappraisal of the Literature

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