Lateral wall of nasal cavity has:
Mnemonic: SPIN
1. Superior meatus: Posterior ethmoidal sinus
2. Inferior meatus: Nasolacrimal duct
The sphenoidal sinus drains into spheno-ethmoidal recess (superior to superior concha).
All others drain into middle meatus:
Mnemonic: AM/FM
A) Indications: Clinical or radiological evidence of involvement of axillary nodes Microscopically positive sentinel node(s) due to metastasis from primary malignant tumor In sentinel node negative: 98 % accurate in predicting that the other nodes are negative In sentinel node positive: possibility of microscopic disease in any of the remaining lymph nodes is 15–30…
Nerve Conduction Study (NCS) In the Nerve conduction study, assessment must be done for ABCDEFGH. Action potential Amplitude Measures the height of response in millivolts (mV) for motor nerve and microvolts (μV) for sensory nerve Indicates quantity of axons contributing to action potential Block of conduction CMAP on proximal stimulation…
Synonym: Pressure paralysis Mechanism: Direct extrinsic pressure (displacement of ranvier node) or axonal hypoxia on the nerves beneath the tourniquet and are related to the cuff pressure and duration of application.\ It is different from post tourniquet syndrome which caused due to combined effect of muscle ischemia, edema and microvascular…