medullary cone

co·nus me·dul·la·'ris

the tapering lower extremity of the spinal cord.
Synonym(s): medullary cone [TA]

med·ul·lar·y cone

(med'ŭ-lar'ē kōn) [TA]
The tapering lower extremity of the spinal cord.
Synonym(s): conus medullaris [TA] .
References in periodicals archive ?
The medullary cone biconvex mass is iso-intense to subcutaneous fat on all sequences.
The medullary segments evaluated were the cervical (CS), thoracic (TS), lumbar (LS), and sacrocaudal (SCS) segments and the medullary cone (CM).
The funneling of the lumbar segment of the spinal cord originates in the medullary cone (ERHART, 1992; GETTY et al.
The apex of the medullary cone occurs between the fifth or sixth lumbar vertebra in pigs, between the sixth or seventh lumbar vertebra in dogs, the second sacral vertebra in horses, and more variably between the sixth lumbar and third sacral vertebrae in cats (DYCE et al.
The reported lengths of the medullary cone are 100 mm in horses, 45.
T2*-weighted and T2-weighted magnetic resonance imaging (MRI) showed intramedullary bleeding in the central portion of the medullary cone (Figures 1 and 2).
T2*-weighted gradient-recalled echo (GRE) imaging shows the smallest amounts of intramedullary hematoma (Figure 1) in the medullary cone.
Intramedullary bleeding after inadvertent puncture of the medullary cone
The reason for the patient's complaints was postpuncture intramedullary bleeding in the medullary cone.