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Year : 2014 Month : September Volume : 3 Issue : 48 Page : 11631-11638


Vipin Kumar Bakshi1, Hemant Kumar Mishra2, Sunny Goyal3

1. Post Graduate Resident, Department of Radio diagnosis, Mahatma Gandhi Medical College & Hospital, Jaipur, Rajasthan.
2. Professor & HOD, Department of Radio diagnosis, Mahatma Gandhi Medical College & Hospital, Jaipur, Rajasthan.
3. Post Graduate Resident, Department of Radio diagnosis, Mahatma Gandhi Medical College & Hospital, Jaipur, Rajasthan.


Dr. Vipin Kumar Bakshi,
Email :


Dr. Vipin Kumar Bakshi,
C/o Dr. V. K. Bakshi,
Bakshi Niwas, 89-B Block,
Sri Ganganagar,

ABSTRACT: Cerebral hemi-atrophy with seizures, hemiplegia and mental retardation is uncommon clinical presentation in the early childhood and adolescence. The causes are various and usually grouped into congenital and acquired types. The Dyke-Davidoff-Masson Syndrome is one of the causes of these clinical manifestations, which is usually developed secondary to brain insult. Here we report two cases with similar symptoms- one case was an adult male of 35 years with long history of seizures and the second case was a young male of 22 years with cognitive impairment, difficulty in speech and walking.

KEYWORDS: DDMS-Dyke Davidoff Masson Syndrome, Cerebral hemi-atrophy, MRI-Magnetic Resonance Imaging, CT-Computerized Tomography

INTRODUCTION: Dyke-Davidoff-Masson Syndrome is one of the causes of seizures with mental retardation. It was first described by C.G. Dyke, L.M. Davidoff and C. B. Masson in 1933 on plain skull radiograph and pneumatoencephalogram in a series of nine patients. The plain skull radiograph shows calvarial thickening with ipsilateral dilatation of paranasal sinuses.3 In 1939, Alpers and Deer defined two types of Cerebral hemiatrophy- Congenital and Acquired.1 The Congenital types show hypo plastic cerebral cortex with thickened calvaria. The Acquired type is usually from the cerebro-vascular lesion and inflammatory processes.

Hageman et al in his study described cerebral atrophy, is actually a lack of cerebral development rather than atrophy.5 The brain reaches half of its adult size during first year of life and three-fourth by the end of third year.11 As the brain enlarges, it compresses the inner table of calvaria. When the brain is not developing, the bony structures grow inward causing dilatation of paranasal sinuses and flattening of calvarium. Overpneumatization of paranasal sinuses and mastoid air cells lead to elevation of the petrous ridge. (Jacoby et al., 1997)

Etiology of Congenital type is brain insult secondary to intrauterine vascular occlusion or Malformation in-utero and in neonatal period. This cause includes occlusion of Middle Cerebral Artery, Unilateral Cerebral Arterial circulation, Co-arctation of mid-aortic arch, mesencephalon hyperplasia etc.10,8,4

Acquired variety includes Birth trauma, Perinatal intracranial haemorrhages, Rasmussen encephalitis, Post-ictal cerebral hemiatrophy, Infection like Herpes Encephalitis, Vascular abnormalities like Dyke-Davidoff-Masson Syndrome, Sturge-Weber Syndrome, Ischaemia, Neoplasia like Basal cell germinoma, Radiation, Phakomatosis (Neurofibromatosis) etc.4 Plain X-ray skull, Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI) are helpful in diagnosis of DDMS. The MRI is preferred modality for the assessment of etiology and lesion extent of cerebral parenchyma.2

CASE REPORTS: CASE 1: A 22 years old male patient presented to the Department of Medicine with mental retardation and right hemiplegia since 18 years. The patient also complained of difficulty in speech, cognitive impairment and difficulty in walking. There is no history of seizure disorder.

PHYSICAL AND CLINICAL EXAMINATION: Patient was a young male, moderately built and nourished& disoriented to time, place and person with irrelevant talking. His general physical examination and vitals were normal. Central Nervous System examination was normal. Examination of other systems was unremarkable. His routine blood and urine investigations were normal Radiological Examination.

Skiagram of Skull (AP & Lateral views) revealed osseous hypertrophy of calvarium on left side (Ipsilateral). No evidence of increased intra-cranial tension or abnormal calcification noted. Sutures were normal. Skiagram of Para Nasal air Sinuses revealed hypertrophy and hyper-pneumatization of left (Ipsilateral) paranasal air sinuses, predominantly, frontal, maxillary and ethmoid sinuses.

NCCT of Brain revealed hemi-atrophy of left cerebral hemisphere, leading to dilatation of sulci and cisterns as well as ex-vacuo dilatation of left lateral ventricle, atrophy of left cortico-spinal tract/cerebral peduncle in left half of mid-brain suggestive of wallerian degeneration. Due to volume loss, there is compensatory thickening of left frontal, parietal and squamous part of left temporal bone with enlargement of left frontal sinus and ethmoid sinus.

Para nasal air sinuses showed hypertrophy and hyper-pneumatization of left (Ipsilateral) paranasal air sinuses, predominantly, frontal, maxillary and ethmoid sinuses. MRI of Brain revealed marked atrophy of left cerebral hemisphere with prominent sylvian fissure and sulci. There are gliotic and encephalomalacic changes in the left cerebral hemisphere with compensatory hypertrophy of right cerebral hemisphere with displacement of falx to left side.

There is compensatory thickening of skull vault with enlargement of left frontal and ethmoidal sinuses, enlarged left mastoid air cells with elevation of petrous part of left temporal bone. No evidence of calcification noted. The left anterior, middle and posterior cerebral arteries appear small in caliber than right.

Fig. 1: T1 Axial Section Showing Left Cerebral Hemiatrophy and Thickening of Ipsilateral Calvarium with Hyperpneumatization of Left Frontal Sinus.