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16 Cards in this Set
- Front
- Back
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Psychodermatology:
Delusional-
OCD-
Borderline Personality- |
Delusional: delusions of parasitosis, dermatothlasia, bromidrosiphobia, body dysmorphic disorder
OCD: neurotic excoriations (acne excoriee), trichotillomania
Borderline: factitious dermatitis |
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What is the most common monosymptomatic hypochondriacal psychosis? |
delusions of parasitosis |
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What is formication? |
delusions of bugs on you |
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What is Morgellons disease? |
symptoms similar to delusional parasitosis but with the addition of beliefs of an inanimate object in the lesion as well (strings/fibers) |
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Epidermiology of delusions of parasitosis? |
usually middle aged females (>50 years old) |
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What medical illnesses can be masked as delusions of parasitosis? |
nutritional deficiency: B12, folate, pellagra
CNS: MS, cerebrovascular disease, encephalitis
true infestations: scabies, lice
DO A WORK UP THAT INCLUDES: CBC, US, LFT, TSH, Fe, B12, folate, electrolytes |
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What is secondary delusional parasitosis? |
symptom of parasitosis is attributed to another psych disorder (schizophrenia, anxiety, depression, OCD, bipolar PTSD) |
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What is dermatothlasia? |
uncontrollable desire to rub or pinch themselves to form bruises |
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What is bromidrosiphobia? May be an early sign of... |
fear of being stinky
**may be an early sign of schizophrenia |
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Neurotic excoriations are most common in what population? |
women 3rd to 5th decade |
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What is the 'butterfly sign' of neurotic excoriations? |
sparing of the upper lateral back |
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Histopathology of trichotillomania? |
increased catagen and telogen hairs (<75%)
empty anagen follicles
pigment casts d/t injury to hair matrix
trichomalacia (evidence of trauma, irregular pigmentation of shaft) |
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Treatment of trichotillomania for children? Adults? |
behavioral therapy for kids
SSRI for adults |
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Factitial dermatitis: |
patient creates skin lesions to satisfy psychological need of which he/she is not aware (elicit sympathy, escape responsibility, collect disability) |
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Cluster A:
Cluster B:
Cluster C: |
Cluster A: WEIRD, paranoid, schizoid, schizotypical
Cluster B: WILD, antisocial, borderline, histrionic, narcissitic
Cluster C: WORRIED, avoidant, dependent, OCD |
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What is dermatitis artefacta? |
factitial lesions that are frequently geometric, bizarre in appearance, spares dominant hand and forearm
these patients may suffer from borderline personality, h/o physical/sexual abuse, poor impulse control
ex: factitious lymphedema (tying a tight cord around an extremity), subcutaneous emphysema (injecting air) |
