Clinical and imaging characteristics of study population
| Characteristics | Patient | |||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| General | ||||||
| Age (yr)/sex | 50/M | 39/M | 79/F | 70/F | 48/F | 30/M |
| Presentation | HA | HA | ICH | ICH | HA, SZ | HA |
| CT | ||||||
| Side | L | R | R | R | R | R |
| Ca2+ distributiona | C + P | C + Pb | C + Pb | C + P | C + P | C + P |
| CTA | NA | DVA, otherwise negative | NA | AVM, DVA; otherwise negative | Large DVA with venous restriction | NA |
| MR imaging | ||||||
| Mass effect | – | – | – | – | –c | – |
| T2 Change | – | – | – | – | NA | – |
| DVA drainage | Deep | Deep | Deep | Deep | Deep | Deep |
| Angiography | ||||||
| Venous restriction | NA | – | NA | – | + | NA |
| Additional features | Ipsilateral prominence of frontal horn | Ipsilateral prominence of frontal horn, | Ipsilateral prominence of frontal horn, | Ipsilateral prominence of frontal horn, | ||
| 2nd DVA, periphery right frontal lobe | Right frontal lobar ICH | Right frontal/parietal lobar ICH | ||||
Note:— –indicates negative.
a Preferential calcification of the caudate and anterior putamen was noted in all cases, with at least partial sparing of the anterior limb of the internal capsule.
b Trace high density of the globus pallidus interna was noted, characteristic of senescent mineralization, involving the globus pallidus interna on the left in case 2 and bilaterally in case 3.
c MR imaging was not available; cross-sectional assessment was performed by CT and CTA.