186.ZONKER'S DEGENERATION SEEN IN

A.STARVATION
B.ELECTROCUTION
C.HYDROCUTION
D.SYRINGOMYELIA

ANS:STARVATION

185.UNILATERAL ASTEREXIS SEEN IN

A.HEPATIC FAILURE
B.RENAL FAILURE
C.PARIETAL LESION
D.TEMPORAL LESION

ANS:PARIETAL LESION

These are most commonly due to focal brain lesions in the genu and anterior portion of the internal capsule or ventrolateral thalamus. Lesions in the midbrain, parietal cortex, and medial frontal cortex may also cause unilateral asterixis

184.THYROID TUMOR SECRETING ACTH CAUSING CUSHING SYNDROME

A.ANAPALSTIC
B.PAPILLARY
C.MEDULLARY
D.FOLLICULAR

ANS:MEDULLARY

Ectopic ACTH Syndrome

Some benign or, more often, cancerous tumors that arise outside the pituitary can produce ACTH. This condition is known as ectopic ACTH syndrome. Lung tumors cause more than half of these cases, and men are affected three times more often than women. The most common forms of ACTH-producing tumors are small cell lung cancer, which accounts for about 13 percent of all lung cancer cases, and carcinoid tumors-small, slow-growing tumors that arise from hormone-producing cells in various parts of the body. Other less common types of tumors that can produce ACTH are thymomas, pancreatic islet cell tumors, and medullary carcinomas of the thyroid.

183.BIRBECK GRANULES ARE SEEN IN

A. LANGERHANS CELLS
B.HISTIOCYTES
C.MAST CELLS
D.PHAGOCYTES

ANS: LANGERHANS CELLS

BIRBECK GRANULES - Tennis racket shaped structures found in Langerhan's cells in histiocytosis X (Langerhan's cell histiocytosis) which includes eosinophilic granuloma, Letterer-Siwe disease and Hand-Schuller-Christian disease.

182.AUTONOMIC INSTABILITY ALL EXCEPT

A.SCHIZOPRENIA
B.KORSAKOFF'S PSYCHOSIS
C.DELERIUM TREMENS
D.WERNICKES ENCEPHALOPATHY

ANS:WERNICKE'S ENCEPHALOPATHY

181.RIVASTIGMINE AND DONEPEZIL ARE USED IN

A.DEPRESSION
B.DYSPHONIA
C.DELERIUM
D.DEMENTIA

ANS:DEMENTIA

Psychoanaleptics: Antidementia agents (N06D)
Anticholinesterases	Cymserine   Donepezil Galantamine   Huperzine A (Huperzia serrata)   Ladostigil   Rivastigmine   Tacrine
Others	Bifemelane   Bilobalide (Ginkgo biloba)   Cerlapirdine   Ensaculin   Latrepirdine   Lecozotan   Leteprinim   Memantine   Semagacestat

180.HLA B27 RELATED TO

A.ANKYLOSING SPONDYLITIS
B.BEHCETS SYNDROME
C.CERVICAL RIB
D.DARIERS DISEASE

ANS:ANKYLOSING SPONDYLITIS

A positive test means HLA-B27 is present. It suggests a greater-than-average risk for developing or having certain autoimmune disorders. An autoimmune disorder is a condition that occurs when the immune system mistakenly attacks and destroys healthy body tissue.

An abnormal result may be caused by:

• Ankylosing spondylitis
• Arthritis related to Crohn's disease
• Reactive arthritis
• Sacroiliitis (inflammation of the sacroiliac joint)
• Uveitis