Btr Flashcards
Epidermal melanin unit.
1:36
Epidermal turnover time.
56 days
Granules present in Stratum lucidum
Eledin granules
Granules in stratum granulosum.
Keratohyaline(fillagrin)
Lamellar bodied/odland bodies
Cells in stratum spinosum
APC - Langerhans cells (CD 207)
BM- MACROPHAGES
Cells in str Basale
Merkel cells
Melanocytes
Merkel cells
Ectodermal
SALT RECEPTOR
CK 7- CK 20 +
Melanocytes
Neural crest cell derivative
S-100,Melan A, HMB 45
Define parakeratosis
Seen in
Psoriasis
Hyperkeratosis seen in
Psoriasis, LP
Orthokeratosis seen in
Hyper-para
LP
Hp of Psoriasis
●Hyperkeratosis
●Parakeratosis
●Club shaped rete ridges
●Munro’s microabsess in str corneum
●Spongiform pustules of kogoj in spinous or granular layer
Hp of Lichen planus
●Orthokeratosis
●Hypergranulosis
●Max Joseph space-wickham striae
●Civatte bodies
●Saw tooth appearance of Rete ridges
●Lichenoid band of inflammation
Erythema Nodosum seen in
Sulpha drugs
Sarcoidosis
(Loefgren syndrome)
IBD/TB/ BEHCET’s
Erythema Marginatum
ARF
E multiforme
Hsv mycoplasma
Chloroquine
NSAIDS
E migrans in
Lyme’s disease
Erythema seen in Paraneoplastic syndrome
E. Gyratum ripens
Skin and nail fx of psoriasis
Erythematous papulo squamous lesion with silvery scales
Irregular pitting
Oil drop pattern(pathognmonic)
Subungal hyperkeratosis
Splincter h’age
Grattage test done for
Psoriasis (auspitz sign positive)
Also ass with berkeley membrane
Psoriasis with h/o URTI and raindrop pattern lesion over trunk?
Guttate psoriasis
DOC Macrolides
H/o sudden withdrawl of steroids
Pustular psoriasis
Doc- Acitretin(washout period- 3 yrs)
K/a Impetigo herpetiformis in pregnancy
Koebner phenomenon
Seen in
Morphologically similar lesion on trauma
Seen in LPV(LP, PSORIASIS,VITILIGO)
Pseudo koebner
Auto innoculation
Seen in Viral warts(HPV, Mol contagiosum)
Reverse koebner
Lesion heals on trauma
Psoriasis
LP featured
Purple
Pruritic
Papule
Plane topped
polygonal
Pup tentibg
On plexors
Pterigium of nails
With wichham striae
Hp fx of lichen nitidus
Claw clutching a ball pattern
P rosea fx?
Christmas tree pattern
Ass with HHV 6/7
Herald patch ( cigarette paper with colarette scales)
Spares palms and soles
Rx Reassurance
P versicolor
Hypo + Hyperpigmented lesion
M. Furfur fungi -fried egg colonies
On KOH mount- sphagetti and meatball pattern
Fried egg appearnce seen in
M. Furfur
Mycoplasma
HC leukemia
Oligodendroma
Reiter sx
Occurs after pre-existing GI/ STD
Infection by Campylobacter/ shigella.
Can’t see(conjunctivitis)
Can’t pee(urethritis)
Can’t climb a tree (arthritis)
Two tough names ass with reiter sx
Keratoderma blenorrhagicum
Circinate balanitis
Bullous impetigo caused by
Staph- SSSS, SJS/TEN
Erisipelas
Caused by strep
Well defined
Raised lesion (st antony fire)
Upper 1/2 dermis + lymphatics involved
Cellulitis
Diffuse
Lower half of dermis + sc tissue involved
Meleney gangrene
Infn of surgical wound
Orange burrowing lesion
Erythrasma caused by
C. Minutissimum
On wood’s lamp - coral red
Ca ATPase 2A2 defect
Darrier’s ds
V shaped nail defect
Ca ATPase 2C1 defect
Hailey hailey ds
Longitudinal lines seen on nails
Hp: delapidated brick wall appearance
Scarring alopecia is seen in
Tinea capitis
Lp
DLE
+- sec syphillis
Non scarring alopecia
With 3 month of stressor
Tenogen effluvium
Non scarring alopecia after chemo
Anagen effluvium
Non scarring alopecia in accessible areas
Trichotillomania
Crusting scutula organism
T schonleini
Kerion orgnsm
T mentagrophyte
Hair perforation test positive
Male pattern baldness
Hamilton pattern
Female pattern baldness.
Ludwig pattrn
Trichophyton
Involves skin hair(endothrix) and nails
Microconidia: pencil shape
Exclamatory mark sign
Regular nail pitting
Going white overnight (white hair spared)
lymphocytes near hair bulb
Alopecia areata
Alopecia totalis
Total loss of scalp hair
Alopecia Universalis
loss of all body hair
Ophiasis (alopecia)
Alopecia along Scalp margins.
sisapho pattern of
hair loss
Hair loss spares the sides & back
of head.
Androgenic alopecia
treatment
Minoxidil (topical) & finasteride
Trichophyton, Microsporum, Epiderm mophyton microconidia
appearance
Pencil ,Spindle,club shape micro conidia
LeSion with central Scarring
Lupus Vulgaris
Lesion with Central clearing
Tinea
Lesion with central crusting
Kala azar
MBL Characteristics
> 5 Skin lesion
1 Nerve involvement
SSS AFB positive
MDT duration 12M
Leprosy dose
Rifampicin 600 mg OAMS
Dapsone 100 mg OD
clofazimine 300mg OAMS+ 50mg OD
Type 1 Lepra reaction
* HSN RX
* seen in _
* Relation to Rx
* C/F
* Systemic Involvement
* Treatment
●Type 4 HSN
●BB /BT /BL
●within 12 M Pre-existing lesion #+ ●raised &tender
●No
●1st line- NSAIDS
DOC-Steroids
Type 2 Lepra reaction
* HSN RX
* seen in _
* Relation to Rx
* C/F
* Systemic Involvement
* Treatment
●Type 3
●LL
●No Relation
●New nodular lesion
●fever, arthralgia, Orchitis
●DOC- Steroids
Most effective- Thallitomide
DO NOT STOP MDT.
Thin, off white discharge
with fishy odour
No inflammation
Lab finding_ pH> 4.5, Clue cells positive whiff test
Bacterial vaginosis
(Gardnerella vaginalis)
Rx- Metronidazole,
Clindamycin
Thin yellow-green malodorous ,frothy discharge
Strawberry vagina
Lab - pH >4.5 , motile trichomonasds +nt
Rx- Metronidazole or Clindamycin
Thick cottage cheese discharge vaginal inflammation +nt
Lab- Normal pH , Pseudohyphae
Candida vaginitis
Rx fluconazole
STD KIT 1
For cervical discharge ,urethral discharge, painful scrotal swelling
Tab Azithromycin 1 gm od stat + tab Cefixime 400 mg od stat
Treat all recent partners ( sympt partner in cervical discharge)
STD kit-2
Green
Vaginal discharge
Tab secnidazone 2g OD Stat + cap fluconazole 150 mg OD Stat
kit 3 I white
Genital ulcer non herpetic
inj Benzathine penicillin(2-4 Mv)- vial
Tab azithral 1 g
Treat all sexual Parther for
3 months
kit_4 (Blue)
Doxycycline+ Azithromycin
kit 5/ Red
Genital ulcer- Herpetic
Tab Acyclovir- 400m g
TDS for 7 days
kit 6 / Yellow
Lower abd pain
Tab cefixime 400 mg OD stat + tab Metronidazole 400 mg BD x 14 days + Doxycycline 100 mg BD x 14 days
kit 7 /Black
Inguinal Bubo
Tab Azithromycin + Tab Doxy
Painful genital ulcers with vesicles and erosion
HSv
Painful genital ulcer with raised lesion
Chancroid(H. Ducreyi)
Painless hard and indurated genital ulcer with painful and rubbery LN
Chancre (syphillis)
Painless beefy red genital ulcer
Granuloma inguinale
Painless genital ulcer with inguinal bubo
LGV (chlamydia)
Pemphigus
Flaccid bullae
Dsg 1 - subcorneal(granulosum layer)
P. Foliaceus, P. Erythematosus
Dsg 3 - suprabasal (spinosum layer)
P. Vulgaris, p vegetans(oral lesion +nt)
Bullous pemphigoid
BP ag
Tense bullae with pruritis(eosinophils)
IF : IgG/c3 -DE jnc against BP ag
CBD OF CHILDHOOD
Linear IgA deposition
String of pearls appearance
Rx Dapsone
Dermatitis herpetiformis
Extensor pruritis
IF : picket fence granular deposition of IgA @ dermal papillae
Hp: Neutrophils + with papillary microabscess
Wardenburg syndrome
Piebaldism + heterochromia iridis
Contact leukoderma
MBEH
Chemical irritant in alta
Crocein
Scarlet MOO
Yellow 3 solvent
Chemical irritant in Bindi
PTBP
Mc chemical in cement
Nickel
Chemical in hair dye
Parabutyl catechol
BCC
Raised pearly nodule
True palisading
Mycoises fungoides
Pautrier’s microabscess
Epidermotropism
Cerebriform nucleus
ABCDE RULE OF MELANOMA
Asymmetry
Borders
Color
Diameter
Evolving
M imp prognostic factor: Breslow depth
Actinic keratosis
Cutaneous horn
Premalignant to Sq c ca
Seborrhoeic keratosis
Stuck on brownish appearance
Not premalignant.
NF 1 chr?
17
NF2 chromosome?
22
All neurocutaneous sx are AD except?
SWS (SPORADIC)
At chr 9
Gene GNAQ
Tuberous sclerosis chr?
9,16
1- Hamartin
2- Tuberin
VHL chr and gene
Chr 3p at HIF GENE (VEGF Increase)
ATM
AR
Chr 11 at ATM gene