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The second cervical vertebra, a skeletal structure with a robust odontoid process that forms the pivot on which the head turns.
A designation used in UK for FNAC (fine needle aspiration cytology) samples that are adequate and contain benign epithelial cells with no features of atypia or malignancy. C2 aspirates range from poorly to moderately cellular and consist of regular ductal epithelial cells arranged in small or large flat sheets. As a rule, C2s have smooth nuclear membrane, fine chromatin, epithelial groups admixed with fragments of fatty or fibrofatty tissue, no pleomorphism and bipolar bare nuclei in the background. Fibroadenomas are the prototypic C2 lesions; other C2 pathologies include those with a cystic component (e.g., duct ectasia and fibrocystic changes), which may have histiocytes and aprocrine cells. C2s have clean backgrounds, except in inflammatory conditions. The typical C2 lesion has benign epithelial clusters and some bipolar nuclei, monolayers of benign epithelium, large number of bare nuclei and stromal fragments.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

complement deficiency

A state in which any of the complement proteins is subnormal
Complement deficiencies–associated disorders
C1r    SLE, renal disease, repeated infections
C1s    SLE
C2    SLE, vasculitis, membranoproliferative glomerulonephritis, dermatomyositis
C3 Repeated infections
C5 SLE, gonococcal disease
C6 Relapsing meningococcal meningitis, gonococcal infection
C7 Raynaud's disease, chronic renal disease, gonococcal infection
C8 SLE, gonococcal infection
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The PEO C3T is better served by using the ABCS 6.4 EIPT's strong infrastructure to provide a more dynamic and flexible organization that will work through the complex issues as it develops, tests, trains, and fields the Army's net-centric battlefield command and control system.
Command and control encompasses the way the Air Force organizes, commands, plans, controls, and executes capabilities to attain a joint force commander's objectives.
Dedicate resources specifically for health sector development and clearly align the health sector development mission under one joint medical command and control element (JMC2E).
The C2ISRC is responsible for establishing Air Force command and control requirements, and by working jointly with that center, the ESC team was able to put together a Request for Proposals that clearly stated customer needs.
It started with "Command and Control", an old military studies term.
Any external agency requesting mutual aid from Suffolk County law enforcement organizations now will obtain help from one unified force with interoperable communications and preestablished command and control. Suffolk County law enforcement personnel will arrive prepared to effectively go to work immediately.
What command and control has led to, in many instances, is nothing more than the workers gaming the system such that they "seem" to be doing what needs to be done: making the numbers is not the same thing as serving the customer, and serving the customer is fundamentally what matters.
(NASDAQ:BEAS), San Jose, Calif., a leading application infrastructure software company, has announced that the German Air Force has signed an agreement to develop standards-based application server technology from BEA for a military command and control system which could become a model for all NATO countries.
The United States Army Dental Command (DENCOM) provides centralized command and control of Army dental care facilities around the world.
The Combined Forces Command-Korea, a joint US-Republic of (South) Korea (ROK) command, has accepted the Global Command and Control System-Army (GCCS-A), developed by Lockheed Martin Mission Systems (Gaithersburg, MD), as its command-and-control ([C.sup.2]) system for theater forces.
After losing billions in the early 90s, IBM has shifted from a command and control vertical integration to a service-based networked integration, shedding employees, and gaining back revenue.
The result of this inadequately planned computer systems changeover has obviously been a complete collapse of both newly programmed on-line systems and a loss of command and control of cash flow.

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