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Collier's Sign

Hey guys!

Collier’s sign (“posterior fossa stare,” “tucked lid” sign) is elevation and retraction of the upper eyelids, baring the sclera above the cornea, with the eyes in the primary position or looking upward.

This may be seen with upper dorsal midbrain supranuclear lesions (e.g., Parinaud’s syndrome). There may be accompanying paralysis of vertical gaze (especially upgaze) and light-near pupil-
lary dissociation.

The sign is thought to reflect damage to the posterior commissure levator palpebrae superioris inhibitory fibers; causing overactivity of this muscle.

-VM

Hydatid cyst mnemonic

Here's a mini mnemonic on hydatid cyst. Caused by E. Granulosus.

H - Hepatic cysts common
Y -
D - Dogs are definitive host
A - Albendazole treatment (Remember, anaphylaxis risk if aspirated)
T -
I -
D -

C - Calcification (eggshell calcification)
Y -
S -
T -

That's all!
-IkaN

Phencyclidine intoxication mnemonic

A combative, agitated, psychotic patient with multi directional nystagmus, tachycardia and hypertension. 

Yup. You guessed it right. It's PCP intoxication. 

Here's a mnemonic 

Melanoma marker mnemonic

The immunohistological marker for melanoma is HMB 45.

You can remember it by remembering the gorilla named 'Harambe' (HaraMBe) of Cincinnati zoo who was in the news as he unfortunately had to be put down because a child entered his enclosure.

You can correlate melanoma's black pigment with that of Harambe's black fur.

That's​ all!

- Sushrut Dongargaonkar

Chronic granulomatous disease mnemonic

Chronic granulomatous disease mnemonic

CGD - GRANULES!
G - chronic Granulomatous disease
R - Rhodamine (Dihydrorhodamine abnormal flow cytometry)
R - ROS, Respiratory burst decreased
A - Abscess / Granulomas
N - Nitroblue tetrazolium dye test
N - NADPH oxidase defective

Catalase positive organisms mnemonic: CATALASE!
Candida
Aspergillus
Tuberculosis
Listeria
Staphylococcus aureus
Serratia
pSeudomonas
E coli

That's all!

-IkaN

Deglutition

Hello Everyone!

 Today lets discuss deglutition. Human's love this process :) .

1.What is Deglutition?

Process by which food  moves from mouth into stomach.

2.What are the different stages?

Oral

Pharyngeal

Oesophageal

3.Is it voluntary?

No, Only the Oral stage is voluntary.

4.What is the oral stage?

Bolus is pushed by the tongue into the Oropharynx.

What is the pharyngeal stage?

It is a involuntary stage. Here bolus moves from pharynx to oesophagus. Bolus has got 4 paths in pharynx

Back in mouth: This is prevented by position of tongue against soft palate.
Upward into nasopharynx: Prevented by elevation of soft palate.
Forward into larynx: Prevented as follows(Only if you don’t talk while swallowing food :P

• Approximation of vocal cords
• Forward and upward movement of vocal cords
• Backward movements of epiglottis to seal opening of larynx
• This causes Deglutition Apnea

Enters the Oesophagus:

• Pharyngoesophageal sphincter relaxes.
• Also upward movement of larynx stretches opening of oesophagus.

What is Oesophageal Stage?

Food from oesophagus enters the stomach.Peristaltic waves aid in this process.Two types of Waves are seen:
Primary peristaltic contractions
Secondary peristaltic contractions

What is the role of lower oesophageal sphincter(LES)?

It undergoes Receptive Relaxation. i.e. it relaxes only upon entry of bolus. Otherwise it is constricted.We have 2 clinical conditions associated with it:

1.Achlasia cardia : Failure of sphincter to relax during swallowing. Causes accumulation of food in oesophagus.

2.Gastroesophageal Reflex disease(GERD): Due to incompetence of LES. Acidic content from stomach regurgitates back into pharynx.

That's all,
Thank you,
Chaitanya Inge

Condyloma acuminata vs condyloma lata mnemonic

Hello!

Medicowesome secret project: Let's walk

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Mnemonic for Sulci And Gyri of the cerebrum

Hello everyone,
  Memorising sulci and gyri of the cerebrum consists of two parts:

1. Memorising the names of the sulci and gyri
2. Memorising the locations

Today I will help you with the first part. Please bear with me, it will be a lengthy one.
Lets start with Superolateral surface
We have 4 regions on superolateral surface. They are

1. Frontal 
2. Parietal
3. Temporal
4. Occipital

Trick for superolateral surface revolves around 3 letters, they are: PSI

Frontal

Sulci- PSI      Gyri- PSIM
Sulci:

1. Precentral 
2. Superior frontal
3. Inferior frontal

Gyri

1. Precentral
2. Superior Frontal
3. Inferior frontal
4. Middle frontal 

Temporal
Sulci:SI  Gyri: SMI
  Names of Sulci are:

1. Superior Temporal
2. Inferior Temoral

Gyri

1. Superior Temporal
2. Middle Temporal
3. Inferior Temporal

Parietal
Sulci: PI Gyri: PSI

Sulci

1. Postcentral
2. Intraparietal

Gyri

1. Post central 
2. Superior Parietal
3. Inferior Parietal

For occipital. Remember a simple mnemonic : Sulci- SaLLTy C    Gyri- Gisa.

Sulci
SaLLTy C

1. Superior and Inferior Polar
2. Lunate
3. Lateral Occipital
4. Transverse Occipital
5. Calcarine

And the gyri

GISA

1. Gyrus descendens
2. Inferior Occipital
3. Superior Occipital
4. Arcus parieto-occipitalis.

So that completes the superolateral surface.

Now moving on to Medial Surface

  Here's the mnemonic CAPS. Men wear CAPs.  

Now  it goes like this Sulci- CCCAPPS. Gyri- Men wear CCaPPPPs

Sulci 

1. Calcarine
2. Callosal 
3. Cingulate
4. Anterior parolfactory
5. Posterior Parolfactory
6. Parieto-Occipital
7. Suprasplenial or subparietal

Gyri

1. Median frontal
2. Cuneus
3. Cingulate
4. Paraterminal
5. Paraolfactory
6. Paracentral
7. Precuneus

Finally moving to the Inferior Surface

 Here's the mnemonic

     when Cars HOORns  PeoPle LAugh LoudLy on boys playing GaMMes on streets!

Sulci (red coloured in mnemonic)

1. Collateral
2. H shaped orbital sulci
3. Olfactory
4. Occipitotemporal
5. Rhinal

Gyri(purpled coloured in mnemonic

1. Parahippocampal
2. Posterior Orbital
3. Lateral orbital
4. Anterior Orbital
5. Lingual
6. Lateral Occipitotemporal
7. Gyrus rectus
8. Median Occipitotemporal
9. Medial Orbital

Lets hope it will make memorising these things a bit easier.

That's all,
Thankyou,
Chaitanya Inge

Blood Supply And Nerve Supply of the Scalp

 Hello Everyone!
                Today we will discuss blood supply and nerve supply of the scalp. Just too many nerves and arteries out there. But there is a way out.

     First let us talk about nerves.

Nerve Supply:

1.  Sensory
2. Motor

Sensory:

Here's the trick

 In front of the auricle we have 4 nerves, and all are branches of trigeminal nerve.They are:

1. Supratrochlear (Opthalmic division)
2. Supraorbital  (Opthalmic division)
3. Zygomaticotemporal (Maxillary division)
4. Auriculotemporal (Mandibular division)

The remaining 4 are located behind the auricle. They are very simple to remember:

GaLeO Go To

1. Great Auricular(C2,C3)
2. Lesser Occipital(C2)
3. Greater Occipital(C2)
4. Third Occipital(C3)

Motor Supply:

In front of auricle: Temporal branch of facial nerve

Behind the auricle: Posterior auricular branch of facial nerve

Nerve supply of the Scalp 

Coming to the  Blood Supply:

1. Arterial supply:
1. Supratrochlear
2. Supraorbital
3. Superficial Temporal
4. Posterior Auricular
5. Occipital

1. Venous Drainage: Common, thats simple. Names corresponds to arteries.
• But there's a twist. The superficial temporal along with maxillary vein wants to drain in external as well as internal jugular. So they form retro mandibular vein whose course is pretty clear in diagram.

Blood Supply of the Scalp

That's all,

-Chaitanya Inge 

How to draw midbrain sections and lesions (Fun mnemonic diagrams)

Hello everyone!

Brain sections are super hard to remember, I imagine them as monsters and this is how I draw them:

Paraneoplastic Dermatoses - Bazex Syndrome.

Hello everybody,

So to continue our series on cutaneous manifestations of internal malignancies
Let's quickly learn about Bazex Syndrome.

Bazex syndrome — acrokeratosis
paraneoplastica is a paraneoplastic phenomenon associated with squamous cell carcinoma of the upper digestive tract.

Presents more commonly in Males and over the age of 40.

Presentation: Erythematous to violaceous psoriasiform plaques predominantly located in acral areas (especially the fingers, toes, nose, and helices).

Nail dystrophy, palmoplantar keratoderma, and alopecia are common.

In most patients, manifestations of Bazex syndrome precede the diagnosis of malignancy or the malignancy is diagnosed concurrently.

The lesions of Bazex syndrome are usually resistant to targeted therapies, but treatment of the neoplasm usually leads to resolution of the cutaneous findings, although not always.

Let's learn together!
-Medha!

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Exam Prep Hacks -Tips for a lazy person

Hola everyone!

This post is for those people who really struggle during exam time, not because they can't understand studies or are stressed, but for someone who is really lazy and no amount of stress can change that (believe me I'm one of those :P)

So if you're someone who puts on their best game forward during exams and becomes a ninja  - this post is not for you! :P

Okay, so you know your exams are just around the corner and you have shit loads of syllabus to complete and you know there will be last minute panic yet you do not make a strategy and  "go with the flow", completely regret it later and are desperate to change this.

Understand that this post won't make you active all of a sudden, this post is all about embracing your laziness and turning into an asset and to rock your exams always without being under constant stress ;)

Let's get down to the basics then.

1. Always set rewards for yourself.

Sitting continuously for 5-6 hours IS JUST NOT POSSIBLE. Your concentration span is of a fly and you get distracted very easily, so instead of setting a target of studying for 5-6 hours continuously and then being disappointed later, make short targets. Like finishing one or two topics in one sitting and then maybe watching an episode of friends or going out for a walk. This way you feel like you've "earned" the break and will keep you motivated.

2. JUST SWITCH OFF YOUR PHONE.

Let's face it. Our phone's are the greatest source of distraction. Be it a whatsapp text, facebook notification or instagram post, we are constantly checking our phones. Either turn the internet off or put it on do not disturb mode, check the phones during your breaks.

3. Exercise!!!

Okay yes I get it, how is exercise gonna help me study? Remember endorphins- feel good hormones? Yeah well, they are secreted whenever we exercise. Exercise also help increase the blood flow and makes us more active. So, go for a walk for 20 min, skip in your room or dance, Whatever keeps you going, believe me, it's really gonna help. Will increase your concentration too!

4. Coffee.

I do not need to explain this. This is like a godsent drink!!  Everyone swears by it, but honestly, whatever will help you stay up.

5. Make realistic targets.

DO NOT set your goals according to others. Forget how your roommate is studying, how the lights of the topper of your class is always turned on. You know yourself the best. Do what suits you. Set targets for yourself. Setting targets according to others will just leave you disappointed and demotivated. It's a vicious cycle. Don't do it.

6. Select a time best suited for you.

Decide if you're a morning or a night person. And stick to that. Again, do not follow others. If you're a morning person, sleep well in time and wake up as early you can. If you're a night owl, prolong your study for as late as you can. Push yourself a little. Lol, just a little though :P

7. Sleep is your best friend.

Haha. Sleep to your rescue. It has been documented that sleep is very important to convert your short term memory to long term memory, so don't shy away taking those naps! :P Lack of sleep will cause dark circles too :P

But obviously not too long, 4-5 hours is adequate during exam time :P

8. Good diet.

Last but the most important part. Keep yourself hydrated and try to have a healthy diet, something which isn't too heavy. Heavy or oily food will just make you sleepy, tired and of course gain weight. Keep drinking water and fluids. Your brain needs food to function!

Hope all these things help you guys in acing your exams!

So the next time someone calls you lazy, Be Proud ;)

Ashita Kohli

The Basics : Deviated Nasal Septum

Hello

Deviated Nasal Septum - "Abnormal and asymmetrical alignment of the nasal septum that results in acute nasal obstruction and other symptoms of upper respiratory tract."

AETIOLOGY -

1. Trauma : Abnormal pressure ( lateral or frontal ) applied to nasal septum results in its deviation to one side or another.
- The lateral blow may cause displacement of septal cartilage from the vomerine groove and maxillary crest.

Groove on which septal cartilage sits ( encircled ) - lateral view
Diagram by IkaN.

- Frontal blow causes crushing injuries to the nose, usually occurs in sportspersons especially the boxers.

2. Developmental anomalies : Palate forms the base of nasal septum. Highly arched palate, cleft palate or lip, and dental abnormalities can all lead to deviation of the septum.

3. Racial factors : Caucasians have more incidence of DNS.

4. Hereditary : Familial predisposition.


TYPES of DNS -

1. Anterior dislocation : dislocation of nasal septum into one of the chambers. ( unilateral nasal obstruction )
2. C - shaped dislocation : simple curve to one side with compensatory hypertrophy of turbinates in other side. It causes unilateral nasal obstruction.
3. S - shaped deformity : causes bilateral nasal obstruction
4. Spurs : shelf - like projections may lead to headache and epistaxis. ( unilateral obstruction )
5. Thickening : due to septal hematoma

CLINICAL FEATURES of DNS mnemonic

TREATMENT - Only required if the symptoms are severe. The procedures are to be done once the patient is more than 17 years old.

- Septoplasty : The most deviated parts of nasal septum are removed and rest of the parts are surgically corrected and repositioned.

- Submucous resection ( SMR ) : Mucoperiosteal and mucoperichondral flaps that overlie one side of the septum are lifted. Most of the septum is removed and flaps repositioned.

Thats all
Hope this helped :)

- Jaskunwar Singh

External Carotid Artery branches mnemonic

Hello

External Carotid Artery branches mnemonic - Seven Angry Ladies Fighting Over PMS

Cranial nerve III damage (Oculomotor nerve damage mnemonic)

Hello!

The CN III has both motor (central) and parasympathetic (peripheral) components.

Which fibers get affected in diabetes?
Which would lead to loss of pupillary light reflex?
Which fibers are compressed first?
Which would cause the down and out pupil?

Don't know? Check the video out!