Friday, August 13, 2010

Actinic keratosis Animation

Actinic Keratosis Actinic keratosis (AK), or solar keratosis, or senile keratosis is a precancerous skin condition that develops in the skin when exposed to sun, hydrocarbons, and arsenicals and is more common in light-skinned people When the human skin is exposed to the sun, the UV-B rays from the sun damage the dermis and epidermis. The epidermis is thinned and damaged cells calls fibroblasts cause synthesis of abnormal dermal elastic fibers within the superficial dermis that give the characteristic appearance of actinic keratosis. Actinic keratoses are small, noticeable, red-brown patches that don't fade away and have a characteristic rough texture accompanied by itching and burning. The lesions are generally 1-3mm in size, occur in clusters, and generally occur in sun exposed areas like the face, neck, and hands.Actinic keratosis has physical characteristics that allow dermatologists to visually identify them. If there is any indication of the possibility of cancer, a skin biopsy is recommended.There are several options to treat AK, the decision on treatment methodology is based on the nature of the lesion, age and health.Actinin keratosis can be treated by:CryosurgeryCurettage and Electro dissectionSurgical ExcisionDermabrasionTopical medicationsActinic keratosis can be prevented by avoiding prolonged exposure to the sun, wearing protective clothing, using sunscreen lotion and sun glasses and regular skin self-examination.


Appearance of Cricopharyngeal achalasia in X-ray

It appeares as :Hemispherical or horizontal, shelflike protrusion on the posterior aspect of the esophagus at approximately the C5-C6 level.

Short Comment.......It is Failure of the upper esophageal sphincter to relax. Can result in dysphagia by obstructing the passage of a swallowed bolus. In severe disease, can cause aspiration and pneumonia.

Labels: , ,

100 Cases in Surgery

The aim of the 100 Cases series is to provide a novel learning and revision tool that works by guiding students through clinical cases, imitating those that students and house officers are likely to meet in accident and emergency and outpatient departments, and in general practice.

The cases are written to interest students in clinical problems and to help them develop their skills of clinical reasoning, with each scenario providing details of a patient’s medical history and the key findings of a clinical examination, together with initial investigation results data for evaluation.

Key questions then prompt students to evaluate the patient, and reach a decision regarding the patient’s condition and the possible treatment plan; while the answer pages will help students to understand the processes that a clinician or surgeon goes through in such situations. Designed with the student in mind, this volume includes features to aid self-directed learning, clinical thinking and problem-solving.

100 Cases in Surgery covers common and more unusual complaints presented, in the following surgical specialty areas: vascular, breast, endocrine, urology, orthopedic, neurosurgery, upper GI, lower GI, anesthesia, and post operative complications.


Labels: ,

Local Anesthetic Injection Techniques

Demonstrates on the skull and on a patient, various injection techniques. It also describes the basic dental chair position for injections.


Physical Diagnosis: Pre-Test Self Assessment and Review

Product Description
500 USMLE-style questions and answers referenced to core textbooks and journal articles
Complete explanations discuss right and wrong answer options
All questions are reviewed by students who have recently passed the exams.
From the Back Cover
PreTest is the medical student's most dynamic weapon for mastering the USMLE Step 2.
With a high-yield facts and mnemonics seciton, it's great for course review and clinical rotations, too! Physical Diagnosis: PreTest asks the right questions so you'll know the right answers. Open it and start learning what's on the test.
PreTest is the closest you can get to seeing the test before you take it.
*Get to know material on the actual exam *Practice with 500 multiple-choice questions, many with clinical vignettes *Build confidence, skills, and knowledge *Learn key facts *Find references with every answer
There are plenty of answers out there. But only PreTest delivers USMLE type questions, in USMLE format.
Open this PreTest for:
*Format that stimulates the exam *500 board-type questions *Referenced answers *Best prep there is for the USMLE and OSCE/CSA
"...Questions were absolutely on target and many of them not seen in other texts." "The mnemonics at the end are great." - a medical student who recently passed the USMLE


Labels: ,