In your medical school, you must have heard about the 5 “P”s of Lichen planus representing the gross morphology of Lichen Planus. This 15 P mnemonic encompasses morphology, drug and other associations and histology of lichen planus. Morphology:PruriticPlanar (Flat-topped)PolygonalPurplePapulesPattern of white lines on papules (Wickham’s stria)Pterygium in nailsPhenomenon of Koebner…
Tag: Musculoskeletal system

Differential Diagnoses of Bone Tumors : Mnemonic Approach
Lytic and Sclerotic Bone Lesions Mnemonic for Solitary lytic lesions: FEGNOMASHIC Fibrous dysplasia Enchondroma Eosinophilic granuloma Giant cell tumor Nonossifying fibroma Osteoblastoma, Osteosarcoma (telangiectatic) Metastases Myeloma Aneursymal bone cyst Simple bone cyst Hyperparathyroidism (brown tumor) Infection Chondroblastoma Chondromyxoid fibroma Mnemonic for Multiple lytic lesions: FEMHI Fibrous dysplasia Eosinophilic granuloma/Enchondroma Metastasis/Mutiple…

Sarcomere Structure : Mnemonic
Remember the sequence: Zahir Is A Hungry Man Z line (Zwischen = between [German]) I band A band H zone M line Z is the final alphabet: Z lines represents the end of sarcomere M for middle: M line represents the midline of sarcomere I is a thin letter: I…

Carpal Bones Ossification: Mnemonic
Roughly one center appears per year from the age of 1 year to 7 years, anti-clockwise in right hand and clock-wise in left hand looking from the anterior surface, i.e. from ulnar side to radial side. Pisiform, being a sesamoid bone it gets left behind and only develops years later. capitate: 1-3 months hamate:…

Tests for Knee Ligaments
Anterior Cruciate Ligament (ACL) Lacchman’s test It is performed with the patient supine and the knee flexed 20–30°. The examiner grasps the distal femur (from lateral side) with one hand and the proximal tibia with the other hand (from medial side). The lower leg is given a brisk forward tug…

Ligament Tests for Ankle Injuries
Anterior Drawer Test Assesses: Anterior talofibular ligament (ATFL) Position: Knee joint in flexion and ankle in 10-15 degrees plantar flexion Maneuver: The examiner exerts a downward force on the tibia while simultaneously attempting to “lift up” the foot while grasping behind the heel. Interpretation: A significant difference from the unaffected…

Salter Harris Classification for Physeal Fracture: Mnemonic
In children, the growth plate (physis) is a zone of cartilate situated between the epiphysis and the metaphysis of long bones. Cartilage is weaker than bone and thus is a common site of fracture. The Salter-Harris classification consists of 5 different types of growth plate fractures based on the location…

Ottawa Foot, Ankle and Knee rules – Mnemonic
Ottawa Ankle and Foot Rules Mnemonic: 44-55-66-PM Patients need an X-ray only if: 4: Unable to do 4 steps immediately AND4: Unable to do 4 steps at Emergency Department OR 5: Has pain at the base of 5th metatarsal5: Has pain at the 5caphoid (Navicular) OR 6: Tenderness in 6…