Wednesday, October 28, 2009


CEREBRAL ANEURYSM
A CEREBRAL ANEURYSM IS A BULGE OR BALLOONING IN A BLOOD VESSEL OF THE BRAIN. IT OFTEN LOOKS LIKE A BERRY HANGING ON A BRANCH. AN ANEURYM CAN RUPTURE, CAUSING A BLEEDING INTO THE BRAIN.
SYMPTOMS
SYMPTOMS OF AN UNRUPTURED ANEURYMS INCLUDE: PAIN ABOVE THE EYE, DILATED PUPIL, VISION CHANGES, NUMBNESS AND OR WEAKNESS TO ONE SIDE OF THE FACE.
SYMPTOMS OF A RUPTURED ANEURYMS INCLUDE: A SUDDEN SEVERE HEADACHE, NAUSEA/VOMITING, VISION CHANGES, SEIZURE, CONFUSION AND LOSS OF CONSCIOUSNESS.
BOTH CT AND MRI ARE OFTEN DONE WHEN A CEREBRAL ANEURYSM IS SUSPECTED. A CT SCAN MAYBE DONE INITIALLY TO DETERMINE IF THE IS A BRAIN BLEED. A MRI OR MRA IS DONE TO GET BETTER AND MORE DETAILED IMAGES OF THE ANEURYSM. A NEUROSURGEON WILL USE THIS INFORMATION TO HELP DETERMINE A COURSE OF ACTION.
TREATMENT USUALLY INVOLVES SURGERY. A NEUROSURGEON REMOVES A SMALL PIECE OF THE SKULL TO ACCESS THE ANEURYSM. A CLIP IS THEN PLACED AROUND THE ANEURYSM TO CUT OFF BLOOD FLOW TO THE BULGING AREA. THE SIZE AND LOCATION OF THE ANEURYSM, ALONG WITH THE HEALTH AND AGE OF THE PATIENT ARE FACTORS IN DETERMINING IF SURGERY IS THE APPROPRIATE TREATMENT.

Wednesday, October 14, 2009



SINUSITIS

SINUSITIS IS AN IMMFLAMATION OF THE SINUSES AND NASAL AIRWAYS. SINUSITIS IS CLASSIFIED AS EITHER ACUTE (SUDDEN ONSET), OR CHRONIC (LONG TERM).

SYMPTOMS OF SINUSITIS INCLUDE HEADACHE, PRESSURE IN THE EYES, PRESSURE TO THE NOSE OR CHEEKS. ONCE THE INFECTION SETS IN A PERSON MAY HAVE A FEVER, NASAL CONGESTION, COUGH AND SORE THROAT.

XRAYS AND CT SCANS ARE THE METHOD OF DIAGNOSIS. THE SCAN WILL SHOW AIR FLUID LEVELS WITHIN THE SINUSES AND OR A THICKENING OF THE MUCOUSAL LINING OF THE SINUSES.

THE MOST COMMON TREATMENT IS ANTIBIOTIC MEDICATION. OCCASIONALLY A FLUSHING OF THE SINUSES IS DONE IN AN ATTEMPT TO CLEAN OUT THE INFECTED SINUS. SOMETIMES SURGERY IS THE RECOMMENDED OPTION. SURGERY IS DONE TO REMOVE NASAL POLYPS, OPEN NASAL PASSAGEWAYS, AND IN NEEDED, STRAIGHTEN THE NASAL SEPTUM.

Tuesday, October 6, 2009

ORBITAL FRACTURE

ORBITAL FRACTURE

ORBITAL OR BLOWOUT FRACTURES REFER TO FRACTURES OF THE ORBITAL RIM OR FLOOR OF THE ORBIT. THESE INJURIES USUALLY OCCUR WHEN A BLUNT OBJECT HITS THE EYE SUCH AS A FIST OR A BALL. THIS CAN CAUSE FLUID TO FILL THE MAXILLARY SINUS, OR IN SEVERE CASES, WHEN THE RIM OF THE ORBIT IS FRACTURED, THE EYE BALL ITSELF CAN SLIP OUT OF ITS NORMAL POSITION WITHIN THE SOCKET.

SYMPTOMS INCLUDE PAIN AND SWELLING. ALSO, DOUBLE VISION, ALTERED SENSATION TO THE AFFECTED EYE, AND SUNKEN EYE (ENOPHTHALMOS). SINUS PAIN AND PRESSURE ALONG WITH NASAL CONGESTION ARE ALSO SYMPTOMS OF A BLOWOUT FRACTURE OF THE ORBITAL FLOOR.

ALTHOUGH XRAYS CAN BE PERFORMED, CT IS THE PREFERRED METHOD OF DIAGNOSIS. AXIAL, CORONAL, AND SAGITTAL IMAGES ARE USED BY THE RADIOLOGIST TO DIAGNOSE.

DEPENDING ON THE SEVERITY OF THE INJURY, SURGERY MAY BE REQUIRED TO REPAIR AN ORBIT FRACTURE. IF THE ORBITAL RIM IS NOT COMPROMISED AND THE EYE BALL IS IN PLACE THEN SURGERY IS USUALLY NOT DONE.

Tuesday, September 29, 2009

PITUITARY TUMOR
THERE ARE SEVERAL SYMPTOMS OF PITUITARY TUMORS. THESE INCLUDE ABNORMAL GROWTH PATTERNS IN CHILDREN, HEADACHE, AND VISION PROBLEMS.
VISION PROBLEMS ARE THE MOST COMMON SYMPTOM. A PATIENT WILL USUALLY VISIT AN EYE DOCTOR WHO WOULD NOTICE THE TUMOR ON AN EXAM. MRI IS THE TEST MOST OFTEN ORDER FOR SUSPECTED PITUITARY TUMOR BECAUSE OF THE SUPERIOR CONTRAST OFFERED COMPARED TO A CT.
TREATMENT OF A PITUITARY TUMORS VARY BASED ON THE SIZE, LOCATION AND TUMOR TYPE. 60-70 PERCENT OF SMALL TUMORS REQUIRE NO TREATMENT. PERIODICAL OBSERVATION TO ENSURE THE TUMOR IS NOT GROWING IS RECOMMENDED. MEDICATION IS ANOTHER TREATMENT OPTION. DIFFERENT TYPE OF MEDICATIONS WORK TO BLOCK HORMONE SECRETION, WHILE OTHER MEDICATIONS SHRINK THE TUMOR SIZE. SURGERY IS OFTEN REQUIRED FOR LARGER TUMORS. BUT THIS IS ALSO DEPENDANT ON TUMOR TYPE, SIZE, AND LOCATION. RADIATION TREATMENTS CAN BE USED IF SURGERY IS NOT DONE OR IF A TUMOR RETURNS.

Tuesday, September 22, 2009

PRESBYCUSIS

PRESBYCUSIS, OR HEARING LOSS IS A COMMON PROBLEM THAT AFFECTS MILLIONS OF PEOPLE EVERY YEAR. COMMON SYMPTOMS ARE PAIN AND LOSS OF HEARING. THIS CAN BE CAUSED BY SEVERAL FACTORS INCLUDING HEREDITY, EARWAX BUILD UP, AND CHRONIC EXPOSURE TO LOUD NOISES. THE MOST COMMON CAUSE IS DAMAGE TO THE INNER EAR. THIS COULD BE FROM EAR INFECTIONS, TUMORS, ABNORMAL BONE GROWTH, OR A RUPTURED EAR DRUM.

DIAGNOSIS IS USUALLY FOUND FROM PERFORMING HEARING TESTS AND WHEN APPROPRIATE A CT SCAN OF THE IAC. TREATMENT FOR HEARING LOSS CAN BE AS SIMPLE AS REMOVING EARWAX TO WEARING HEARING AIDS, TO COCHLEAR IMPLANTS.

Tuesday, September 15, 2009


I HAVE DECIDED TO DISCUSS STROKES FOR MY PATHOLOGICAL CONDITION. STROKES ARE THE THIRD LEADING CAUSE OF DEATH IN THE U.S. THERE ARE 600,000 NEW OR RECURRENT STROKES EACH YEAR.


SYMPTOMS OF A STROKE INCLUDE TROUBLE WALKING, SPEAKING, SEEING, AND A HEADACHE. ALSO, PARALYSIS OR NUMBNESS ON ONE SIDE OF THE BODY.


STROKES ARE CLASSIFIED INTO TWO MAJOR GROUPS: ISCHEMIC AND HEMORRHAGIC. HEMORRHAGIC STROKE ARE DUE TO RUPTURE OF A CEREBRAL BLOOD VESSEL THAT CAUSES BLEEDING AROUND OR INTO THE BRAIN. HEMORRHAGIC STROKES MAKE UP 16% OF ALL STROKES. ISCHEMIC STROKES, WHICH ACCOUNT FOR 84% OF ALL STROKES, ARE SUBDIVIDED INTO FOUR CATEGORIES: THROMBOTIC, EMBOLIC, LACUNAR, AND HYPOPERFUSION INFARCTIONS.


A THROMBOTIC STROKE HAPPENS WHEN A CLOT FORMS WITHIN A CEREBRAL ARTERY. AN EMBOLIC STROKE OCCURS WHEN A DETACHED BLOOD CLOT, USUALLY FROM THE HEART, FLOWS INTO AND BLOCKS A CEREBRAL ARTERY. A LACUNAR INFARCTION IS WHEN THE SMALL ARTERIES IN THE BRAIN THICKEN CAUSING AN OCCLUSION OF THE ARTERY. HYPOPERFUSION INFARCTIONS OCCUR FROM RESPIRATORY OR CARDIAC FAILURE.
MEDICATION IS THE STANDARD TREATMENT FOR STROKES. TISSUE PLASMINOGEN ACTIVATOR (TPA) IS A CLOT-BUSTING DRUG USED TO DISSOLVE THE BLOOD CLOT CAUSING THE STROKE. ALSO, ANTICOAGULANTS, E.G. HEPARIN, AND ANITPLATELET DRUG ARE USED. SURGERY IS A FINAL OPTION.
FOLLOWING A STROKE 50 TO 70 PERCENT REGAIN A USABLE AMOUNT OF FUNCTION. 15 TO 30 PERCENT ARE PERMANENTLY DISABLED. THREE MONTHS AFTER A STROKE 20 PERCENT REQUIRE INSTITUTIONAL CARE.


Labels: HEAD PATHOLOGY