1 CD markers

            CD    MARKER                                                                             For

1-5 , 7 , 8 , 28	TCR (T cell Marker)
19-23 , 10 (CALLA)	BCR (B cell Marker)
16 , 56	NK cell Marker
68	Macrophage (histocyte) marker
31	Adhesion Molecule (PECAM -1àon both endothelium and neutrophil)
11/18	Integrin Beta2 (LFA-1/MAC-1) (on neutrophil)
117 = c-Kit	GIST
44	Needed for hematological spread (metastasis), Hyaluronic acid receptor
45= LCA	Lymphoma Marker
99	Ewing’s Sarcoma marker
1a	Langerhan’s Cell marker
15,30	RS cell Marker
16	Fc receptor of NK cells
34	Stem Cell Marker
55 = DAF	Inhibit C3 and C5 convertase
59 = MIRL	Inhibits MAC
20	Hodgkin’s –Lymphocytic Predominant
95	FAS
71	Mesangial IgA1 receptor Enhanced expression in Berger Disease(IgA nephropathy) and Henoch-Schönlein Nephritis

CD 55 and 59 -- deficiency --- PNH

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MC complication of Nuclear Cataract	Subluxation of lens
MC complication of Cortical Cataract	Phacolytic Glaucoma
MC complication of steroid in eye	Oral – Cataract Topical – Glaucoma
MC Radiation cataract	Posterior SubCapsular
MC eye involvement  in Marfan’s	Superior temporal Ectopia Lentis
Most prominent eye involvement in Marfan’s	Megalocornea
Earliest Damage in Glaucoma	Arcuate fibers
MC cause of Malignant Glaucoma (T/t-Mydriatic)	Trabeculectomy
MC site of GRFomas	1.       Lung (54%) 2.       Pancreas (30%)
MC cause of Secondary Lipid Keratopathy	Disciform Keratitis (herpes)
MC allergy in Phlyctanular KC	1.       Staph Aureus 2.       TB
MC cause of Ophthalmia Neonatorum	Chlamydia
MC ocular manifestation of HIV	Microangiopathy (cotton wool spots)
MC opportunistic eye infection with HIV	CMV retinitis
MC malignant tumor of Lid	BCC (site – 1st common Lower Lid ,  2nd common – Inner Canthus)
MC cause of U/L and B/L Proptosis	Thyroid (Grave’s)
MC intraocular Tumor Child	Retinoblastoma
MC primary intraocular Tumor Adult	Choroidal Malig Melanoma
MC intra-orbital Tumor Child	Rhabdomyosarcoma
MC primary intra-orbital Tumor Adult	Cavernous Hemangioma
MC age for Retinoblastoma	18 mths
MC mode of presentation of Retinoblastoma	Leukocoria
MC metastatic orbital tumor in Child	Neuroblastoma
MC Diabetic Retinopathy in Factor – 1st Duration , 2nd Control of Blood Sugar	Type I (IDDM)
MC inheritance of RP (Ret.Pigmentosa)	AD (worst is X linked)
MC complication of Uveitis	Secondary Glaucoma
MC systematic association with Angioid Streaks	Pseudoxanthoma Elasticum
MC cause of Vitreous Haemorrhage	Adults – Diabetes (Proliferative DR) Young – Trachoma
MC clostridium difficile infection because of	1.       Cefalosporins III generation 2.       Clindamycin (Maximum potential to cause C.Dif infection)
Most abundant Collagen in Bone	Type I
MC pathological fracture	1.       DorsoLumbar Spine 2.       Neck Femur 3.       Lower End radius
MC cause of Pathological fracture	1.       Osteoporosis 2.       Osteomalacia 3.       Malignancy
MC Salter Haris	Type II , 2nd MC Type IV

1 Valve lesion in RHF and RHD

RHF -- MR

RHD -- MS


Mnemonic - MRF - (MR in Fever)

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MC site of Gumma (Tert. Syphilis)	Lower Legs
Earliest Lesion in Early Congenital Syphilis	VesiculoBullous (Syphilitic Pemphigus)
MC feature in Late Congenital Syphilis	Interstitial  Keratitis
1st to be positive in Syphilis	FTA-Abs
MC Genital Wart / C.Accuminata	HPV 6 , 11
MC infectious cause of Erythema Nodosum	Beta Haemolytic Streptococcus
MC leprosy in India	BT
MC nerve injury during Thyroid Surgery	Superior Laryngeal Nerve
MC cause of U/L Vocal cord Paralysis	Ca Bronchus
MC congenital Laryngeal Anomaly	Laryngomalacia
MC Ca Larynx	Squamous cell Ca – Glottic
MC Tracheostomy	Mid (2,3,4 tracheal ring)
MC Sinusitis	Child – Ethmoid Adult – Maxillary
MC Sinusitis complicated with Osteomyelitis	Child – Maxillary Adult – Frontal (Pott’s Puffy Tumor)
1st Sinus to develop	1.       Maxillary 2.       Ethmoid 3.       Sphenoid 4.       Frontal (6year after birth)
MC sinus Malignancy	Maxillary
MC sinus Osteoma , and Mucocele	Frontal
MC cause of CSF Rhinorrhoea	Fracture Ethmoid
MC fracture face	1.       Nasal Bone 2.       Zygomatic
MC Site in Oral Ca	World – Ca Tongue India – Buccal Mucosa Ca
MC ossicle eroded in CSOM	Long process of Incus
MC part of facial Nerve injured during MRM	1.       Verticle Segment 2.       Genu
MC part of Nerve damaged in Unsafe CSOM	Horizontal Segment
MC otogenic brain abcess	1.       Temporal lobe 2.       Cerebellum
MC site for malignancy in Hypopharynx	Pyriform Sinus
1st Sign of Cavernous thrombosis	Ophthalmoplegia of Lateral Rectus (6th nerve)
MC type of phacomatosis	NF1
MC cause of Hypergonadotropic hypogonadism in Males	Klinefelter’s Synd.
MC urethral Ca	Bulbomembranous Part (Squamous cell ca)
MC malignancy in Child	1.       ALL 2.       Brain Tumors
MC Solid tumor in child--------------------------- MC extracranial Solid tumor in Child--------------	Meduloblastoma Neuroblastoma
MC Congenital Cataract	Blue Dot
MC Congenital Cataract with diminution of Vision	Lamellar / Zonular
MC cataract in Congenital Rubella Synd	Nuclear Pearly