USMLE Forum Archives - USMLE Step 1 - Pathology 13
Pathology 13
TheOne - 10-10-06 15:23
A newborn baby has a large, cystic "mass" of the lumbar region. The mass is found to consist of CSF-filled meningeal tissue that has herniated through a vertebral defect. The child moves all her extremities and responds to external stimulation in a normal fashion. The term best used to describe this child's lesion is which of the following?
A. Encephalocele
B. Meningocele
C. Meningomyelocele
D. Spina bifida aperta
E. Spina bifida occulta
TheOne - 10-10-06 15:23
A newborn baby has a large, cystic "mass" of the lumbar region. The mass is found to consist of CSF-filled meningeal tissue that has herniated through a vertebral defect. The child moves all her extremities and responds to external stimulation in a normal fashion. The term best used to describe this child's lesion is which of the following?
A. Encephalocele
B. Meningocele
C. Meningomyelocele
D. Spina bifida aperta
E. Spina bifida occulta
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#2
Re: Pathology 13 simple - 10-24-06 08:58 i agree with mossaba that the answer is B. it cannot be spina bifida occulta because the defect is obvious since meningeal tisue is seen through a defect. Occulta here means hidden or obscured.... much like the occult. spina bifida aperta means that there is a defect in the closure of the vertebral arch but no tissue herniates. meningomielocele means that in addition to having your meninges herniating there are other elements of the CNS, that is , the spinal cord also herniates. encephalocele can be eleminated because we are talking about the spinal region....not the brain. Now since there is a vertebral defect and only the meninges herniate then we have no choice but to conclude that it is a meningocele.
#3
Re: Pathology 13 simple - 10-24-06 08:59 i agree with mossaba that the answer is B. it cannot be spina bifida occulta because the defect is obvious since meningeal tisue is seen through a defect. Occulta here means hidden or obscured.... much like the occult. spina bifida aperta means that there is a defect in the closure of the vertebral arch but no tissue herniates. meningomielocele means that in addition to having your meninges herniating there are other elements of the CNS, that is , the spinal cord also herniates. encephalocele can be eleminated because we are talking about the spinal region....not the brain. Now since there is a vertebral defect and only the meninges herniate then we have no choice but to conclude that it is a meningocele.
#4
Re: Pathology 13 galaxy - 05-27-10 19:20 A newborn baby has a large, cystic "mass" of the lumbar region. The mass is found to consist of CSF-filled meningeal tissue that has herniated through a vertebral defect. The child moves all her extremities and responds to external stimulation in a normal fashion. The term best used to describe this child's lesion is which of the following? meningocele.
#5
Re: Pathology 13 babbu5508 - 06-21-10 14:53 B. Meningocele because there seems to be herniation of only the meninges and no nervous tissue...also in the child nervous symptoms are absent
#6
Re: Pathology 13 bingousmle - 06-30-10 22:29 The mass is found to consist of CSF-filled meningeal tissue that has herniated through a vertebral defect.----Meningocele
#9
Re: Pathology 13 babbu5508 - 09-24-10 06:50 The least common form of spina bifida is a posterior meningocele (or meningeal cyst).
In a posterior meningocele, the vertebrae develop normally, however the meninges are forced into the gaps between the vertebrae.
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