Seborrheic & Breed Disorders

Abnormal Skin Formation (Keratinization)

Seborrhea, describes skin which is dry, dull, lusterless hair coat, excessive scaling (dandruff), scaly and crusty, greasy, smelly patches.

Most cases of seborrhea are secondary to other disease like allergies and infections. However if it starts in the first year of life it can be primary seborrhea.

Primary seborrhea is a hereditary disorder of skin formation (keratinization). The highest incidence is in American Cocker Spaniels, English Springer Spaniels, West highland White Terriers and Bassett hounds .

Vitamin A – Responsive Dermatosis of American cocker Spaniel

Focal areas of crusting and scale forming plugs or discrete patches. Occurs almost exclusively in 2-3 year old American cocker spaniels.


Ichthyosis

Ichthyosis is another congenital defect in skin formation (keratinization) which covers the body with large accumulations of scale (dead skin) in large sheets. In the first year of life it may effect Westhighland White Terriers, Golden Retreivers, Cavalier King charles Spaniels, Doberman Pincers, Jack Russell Terriers, Norfolk Terriers and Yorkshire Terriers .

Sebaceous Adenitits

Mild to severe scaling, localized, multifocal or generalized. In short or long hair coated breeds. Highest occurrence is in young to middle aged Standard Poodles, Hungarian vizslas, Akitas and Samoyeds .

Zinc Responsive Dermatosis

Zinc responsive dermatosis is a zinc deficiency induced disorder of skin formation (keratinization). An inherent diminished ability to absorb zinc from the intestinal tract. It occurs mostly in adult northern breeds, Siberian Huskies, Samoyeds and Alaskan Malamutes . Crusting, scaling and hair loss around the eyes, mouth, muzzle, nose, ears, genitals, elbows, stifles and other pressure points.

Schnauzer Comedone Syndrome

Schnauzer Comedone Syndrome is an acne-like disorder of formation of hair follicle keratin comedones or blackheads and crusted papules are found on the back.

Hereditary Nasal Parakeratosis of Labrador Retrievers

Crusts and scabs form on the nose of Labrador Retrievers between 6-12 months of age.


Hair Loss Associated with Breeds

• Alopecia X- Generalized hairloss which may be due to adrenal sex hormone imbalance or local follicle receptor dysregulation. Most common at 2-5 years of age especially in Chow Chow’s, Pomeranians, Keeshounds, Samoyeds, Alaskan Malamutes, Siberian Huskies and Mini Poodles .

• Color Dilution Alopecia (color mutant alopecia)- This is a hair follicle dysplasia of hairs associated with defective pigmentation and formation. It is common in color-dilute dogs such as those bred to blue (dilutions of black) or fawn (dilutions of brown). The disorder is especially common in Doberman Pincers but also occur in other breeds including, Yorkshire Terriers, Minature Pincers, Great Danes, Whippets, Italian Greyhounds, Salukis, Chow Chows, Dachshunds, Silky Terriers, Boston Terriers, Newfoundlands, Bernese Mountain Dogs, Shetland Sheepdogs, Schipperkes, Chihuahuas, Poodles and Irish Setters . Dogs appear normal at birth, but start losing hair over the back and trunk between 6 months and 2 years.

• Black Hair Follicular Dysplasia- This disorder is a color linked follicular dysplasia of black hairs that is associated with defective hair pigmentation and formation. Puppies are normal at birth but begin losing hair at 1 month of age. Only black hairs are lost.

• Canine Pattern Baldness- Unknown cause hairloss disorder mostly of Dachshunds but also occurs in other short haired breeds Chihuahuas, Whippets, Manchester terriers, Boston Terriers, Boxers, Greyhounds . Hair loss usually starts in late puberty to early adult hood. The symmetrical hair loss usually affects the ears, around the ears, thighs, neck, chest and abdomen.

• Canine Recurrent Flank Alopecia- This disorder is a seasonal recurrent follicular dysplasia. Hair is usually lost between November and then regrows in the summer. Hair loss occurs on both flanks of mostly adult Boxers, Bulldogs, Airedales, and Schnauzers .

• Canine Follicular Dysplasia- This is a disorder of hair follicle development that affects young to middle aged dogs. The breeds mostly affected are Irish Water Spaniels, Portuguese Water Dogs, Black or Red Dobermans, Weimaraners, and Pont-Audemer Spaniels .

In a study of dogs in northern California conducted at the University of California at Davis, 31 breeds were found to be at elevated risk for skin diseases, including Doberman pinscher, Irish setter, Dalmatian, Dachshund, Golden Retriever, various terrier breeds, Shar pei, Chow Chow, and Akita. In the same study, decreased risk of skin disease was found for dogs of mixed breeding and for 12 purebred breeds, including St. Bernard, Standard Poodle, Beagle, Basset Hound, German Shorthaired Pointer, Afghan Hound, and Australian Shepherd.

Breed predilection determines the incidence of some skin disorders, see below for some examples. Breeds in (brackets) are popular mixes of the primary breed that may or may not be affected by the same predilection.

Cats:

Abyssinian Follicular dysplasia
Idiopathic ceruminous Otitis externa
Psycogenic dermatitis or alopecia
Himalayan Cheyletiellosis

Dermatophytosis (microsporum canis)

Idiopathic facial dermatitis
Primary Seborrhea
Persian Cheyletiellosis
Dermatophytosis

Facial fold intertrigo

Hair mats

Idiopathic facial dermatitis

Seborrhea, primary

Rex Hypotrichosis
Siamese cat Food hypersensitivity
Hypotrichosis
Periocular leukotrichia
Psycogenic dermatitis or alopecia
Vitiligo

Dogs:

Afghan hound Hypothyroidism
Airedale Adult-onset demodicosis
Atopy
Demodicosis
Follicular dysplasia, flank
Akita

Pemphigus Foliaceus

Sebaceous adenitis
Uveodermatologic syndrome
Basenji Immunoproliferative enteropathy
Bassett hound

Atopy

Masassezia dermatitis
Seborrhea, primary
Skin fold intertrigo
Beagle (Puggle)

Atopy

Demodicosis
Imunoglobulin A (IgA) deficiency
Belgian sheepdog Sebaceous adenitits

Vitiligo

Berger de Beauce Epidermolysis bullosa
Borzoi

Hypothyroidism

Boston terrier

Atopy

Demodicosis

Facial fold intertrigo
Hyperadrenocorticism
Patterned alopecia
Tail fold intertrigo
Boxer

Atopy

Demodicosis

Food Allergy
Follicular dysplasia (flank)

Hyperadrenocorticism

Hypothyroidism

Muzzle furunculosis, bacterial
Pedal furunculosis, bacterial
Sertoli cell syndrome
Solar dermatitis (white dogs)
Sterile pyogranuloma syndrome

Sternal callus

Brittany spaniel

Complement deficiency

Discoid lupus erythematosus

Hypothyroidism

Bullmastiff and Mastiff Folliculitis and furunculosis, bacterial

Atopy

Furunculosis, scarring and bacterial
Lethal acrodermatitis
Solar dermatitis
Zinc-responsive dermatosis
Cavalier King Charles Spaniel Syringohydromelia
Chesapeake Bay Retriever

Atopy

Folliculitis and furunculosis, bacterial
Chihuahua Demodicosis
Pinnal thrombovascular necrosis
Chow Chow Adrenal sex hormone abnormalities
Pemphigus Foliaceus
Color dilution alopecia
Demodicosis
Hyposomatotropism

Hypothyroidism

Uveodermatologic syndrome
Collie Bullous pemphigoid
Dermatomyositis

Discoid lupus erythematosus

Nasal furunculosis, bacterial
Pemphigus erythematosus
Pyotraumatic dermatitis
Sertoli cell syndrome
Systemic lupus erythematosus
Vesticular cutaneous lupus erythematosus
Curly-coated retriever Follicular dysplasia
Dachshund Acanthosis nigricans

Alopecia areata

Color dilution alopecia
Demodicosis
Folliculitis and pedal furunculosis, bacterial

Hyperadrenocorticism

Hypothyroidism
Idiopathic onychodystrophy
Juvenile cellulitis
Linear IgA pustular dermatosis
Malassezia dermatitis
Nodular panniculitis (sterile)
Pattern alopecia (ears & ventral)
Pemphigus Foliaceus

Sterile pyogranuloma syndrome

Sternal callus
Vasculitis (idiopathic)
Dalmatian

Atopy

Demodicosis

Drug reactions
Folliculitis and furunculosis, bacterial
Solar Dermatitis
Doberman pinscher Acral furunculosis, bacterial
Acral lick dermatitis
Color dilution alopecia
Demodicosis

Drug reaction (sulfas)

Flank sucking
Follicular dysplasia
Folliculitis and pedal furunculosis, bacterial

Hypothyroidism

Muzzle furunculosis, bacterial

Vitiligo

Dogue de Bordeaux Hereditary footpad hyperkeratosis
Sterile pyogranuloma syndrome
English Bulldog

Atopy

Demodicosis
Facial fold intertrigo
Folliculitis and pedal furunculosis, bacterial
Follicular dysplasia (flank)
Hypothyroidism
Malassezia dermatitis
Muzzle furunculosis, bacterial
Sterile pyogranuloma syndrome
Tail fold intertrigo
German Shepherd Atopy
Cellulitis (folliculitis and furunculosis), bacterial
Collage disorder of footpads
Contact hypersensitivity

Discoid lupus erythematosus

Erythema multiforme
Familial vasculopathy
Flea bite hypersensitivity
Fly dermatitis of ear tips
Food allergy
Lupoid onychodystrophy
Insect or arachnid-related eosinophilic furunculosis (face)
Medullary trichomalacia
Metatarsal fistulae
Mucocutaneous bacterial Pyoderma
Nasal furunculosis, bacterial
Otitis Externa
Pemphigus erythematosus
Pituitary dwarfism
Pythiosis
Seborrhea, primary
Systemic lupus erythematosus
Vitilgo
Golden Retriever (goldendoodle) Acral furunculosis, bacterial
Acral lick dermatitis
Atopy
Folliculitis and furunculosis, bacterial

Hypothyroidism

Juvenile cellulitis
Nasal hypopigmentation
Pyotraumatic dermatitis
Pyotraumatic folliculitis and furunculosis, bacterial
Sterile pyogranuloma syndrome

Trichoptilosis

Gordon Setter

Atopy

Hypothyroidism
Juvenile cellulitis
Great Dane Acral furunculosis, bacterial

Acral lick dermatitis

Callus formation, hygroma
Demodicosis
Hypothyroidism
Muzzle furunculosis, bacterial
Pedal furunculosis, bacterial
Solar dermatosis in Harlequin
Sterile pyogranuloma syndrome
Great Pyrenees

Demodicosis

Pyotraumatic dermatitis
Greyhound

Drug reactions

Vasculopathy

Irish Setter Acral furunculosis, bacterial

Atopy

Acral lick dermatitis
Color dilution alopecia
Folliculitis and furunculosis, bacterial
Granulocytopathy

Hypothyroidism

Seborrhea, primary
Irish water spaniel

Follicular dysplasia

Idiopathic onychodystrophy
Irish wolfhound Elbow hygroma
Hypothyroidism
Keeshond

Adrenal hyperplasia syndrome

Hypogonadism of intact male

Hyposomatotropism

Hypothyroidism
Labrador retriever (Labradoodle)

Acral furunculosis, bacterial

Acral lick dermatitis
Atopy
Familial nasal hyperkeratosis
Folliculitis and furunculosis, bacterial
Food allergy
Pyotraumatic dermatitis
Seborrhea, primary

Waterline disease (Malassezia dermatitis?)

Lhasa apso (Lhasapoo) Atopy
Injection reaction
Malassezia dermatitis
Malamute Demodicosis

Hypothyroidism

Zinc-responsive dermatosis
Newfoundland Folliculitis and furunculosis, bacterial
Hypothyroidism
Pemphigus Foliaceus
Pyotraumatic dermatitis
Old English sheepdog

Atopy

Demodicosis
Drug reactions

Pedal furunculosis, bacterial

Pekingese (pekapoo)

Facial fold intertrigo

Injection reactions
Sertoli cell syndrome
Pointers Acral mutilation
Demodicosis
Epidermolysis bullosa
Exfoliative cutaneous lupus erythematosus
Follicular dysplasia (flank)
Nasal and muzzle folliculitis
Pomeranians Adrenal sex hormone abnormalities
Hyposomatotropism
Injection reactions

Poodle (Multipoo, Goldendoodle,
Schnoodle, Labradoodle,
cockapoo, lhasapoo, yorkipoo,
pekapoo)

Ectodermal defect
Epiphora
Hyperadrenocorticism
Hyperadrenocorticism
Hyposomatotropism
Hypothyroidism
Injection reactions
Otitis Externa
Sebaceous adenitis (standard)
Portuguese water dog

Follicular dysplasia

Pug (Puggle)

Facial fold and tail fold intertrigo

Rhodesian Ridgeback

Dermoid sinus in midline of back

Rottweiler Folliculitis and furunculosis, bacterial
Follicular lipidosis
Follicular parakeratosis
Idiopathic vasculitis

Vitiligo

Samoyed Adrenal hyperplasia syndrome
Hyposomatotropism
Sebaceous adenitis
Uveodermatologic syndrome
Schipperke Pemphigus Foliaceus
Shar pei

Atopy

Demodicosis

Fold intertrigo
Folliculitis, bacterial
Food hypersensitivity
Hypothyroidism

Idiopathic mucinosis

IgA deficiency

Schnauzer, minature (Schnoodle)

Atopy
Aurotrichia
Drug reaction
Follicular dysplasia (flank)
Hypothyroidism
Pseudohermaphroditism
Schnauzer comedo syndrome
Subcorneal pustular dermatosis
Superficial suppurative necrolytic dermatitis

Shetland sheepdog

Dermatomyositis

Discoid lupus erythematosus

Drug reaction

Folliculitis, bacterial

Sertoli cell syndrome

Systemic lupus erythematosus
Vesticular cutaneous lupus erythematosus
Shih tzu

Atopy

Malassezia dermatitis

Siberian husky Discoid lupus erythematosus

Eosinophilic granuloma

Follicular dysplasia

Hypogonadism in intact male
Idiopathic onychodystrophy
Uveodermatologic syndrome

Zinc responsive dermatosis

Spaniels= Cocker & Springer (cockapoo) Acral mutilation –English Springer
Atopy- American Cocker
Cutaneous asthenia- English Springer
Food Allergy

Hypothyroidism

Idiopathic onychodystrophy- Springer
Lip fold intertrigo
Malassezia dermatitis

Otitis Externa (especially proliferative)

Psoriasiform-lichenoid dermatosis- English Springer

Seborrhea, primary

Vitamin A responsive dermatosis- Cocker

St. Bernard

Acral lick dermatitis

Folliculitis and furunculosis, bacterial
Pyotraumatic dermatitis

Terriers:

Cairn

Atopy

Sertoli cell syndrome

Irish Hereditary footpad hyperkeratosis
Jack Russell Atopy
Demodicosis
Dermatophytosis (Trichophyton mentagrophytes, var. erinacei)
Vasculitis
Kerry Blue Footpad keratoses (corns)

Otitis Externa

Spiculosis

Scottish

Atopy

Demodicosis

Folliculitis and furunculosis, bacterial
Hereditary nasal pyogranuloma and vasculitis
West Highland White

Atopy

Demodicosis

Epidermal dysplasia

Ichthyosis

Malassezia dermatitis

Seborrhea, primary
Wire-haired fox

Atopy

Yorkshire (Yorkipoo)

Color dilution alopecia

Dermatophytosis (m. canis)

Injection reactions

Melanoderma and alopecia

Traction alopecia
Visla Sebaceous adenitis
Weimeraner

Demodicosis

Muzzle furunculosis
Sertoli cell syndrome

Sterile pyogranuloma syndrome

Whippet

Idiopathic onychodystrophy

Vancouver:

1316 West 4th Avenue
Vancouver, BC V6H 4A3 Canada
(604) 558-3376

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140 - 8040 Garden City Rd.
Richmond, BC V6Y 2N9 Canada
(604) 270-6163

Vancouver Office Hours

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Tuesday:

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Wednesday:

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Thursday:

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Friday:

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Saturday:

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Sunday:

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Monday:

8:00 am-5:30 pm

Tuesday:

8:00 am-5:30 pm

Wednesday:

8:00 am-5:30 pm

Thursday:

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8:00 am-5:30 pm

Saturday:

By Appointment Only

Sunday:

Closed

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  • "I have been so grateful for Dr. Charach’s dermatology expertise in treating my shar pei’s seasonal allergies, skin infections and food allergies. He takes the time to go over the history every visit to ensure that we are not confusing the symptoms with other possible diagnosis. He is also very up to date on all the current immunotherapy and pharmaceutical options. I always leave his office with a plan and feel that my dog has been well cared for. Over the past 5 years I have seen significant improvement in my dog’s quality of life and thanks to Dr. Charach. I recommend Dr. Charach to any animal with skin issues."
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