10 results
Obsessive-Compulsive & Related Disorders - Differential Diagnosis Algorithm

Non-Specific Obsessions and/or Compulsions
 - Obsessive Compulsive Disorder -
Appearance - Trichotillomania ... Compulsions #OCD #ObsessiveCompulsive
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
capitis • Trichotillomania ... Diffuse #Focal #HairLoss
This trichobezoar was extracted from a teenage patient with trichotillomania (hair-pulling disorder) & trichophagia (compulsive hair-eating).
teenage patient with trichotillomania ... surgery #extraction #trichotillomania
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Tinea Capitis, Trichotillomania ... #dermatology #Hairloss
Obsessive-Compulsive Disorder (OCD): Pathogenesis and clinical findings

Psychological Hypothesis
 • Cognitive behavioral model: Emotional disturbance arising from
consequences #OCPD #ObsessiveCompulsive
Focal / Localized Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 - Infectious
capitis • Trichotillomania ... Secondary syphilis #HairLoss
Arterial Insufficiency: Chronic arterial insufficiency has resulted in pale, hairless, and somewhat 
shiny appearing lower extremity.
resulted in pale, hairless
Diffuse Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 • Lupus erythematosus
 • Lichen
stress #Diffuse #HairLoss
Nonscarring Alopecias: Clinical features of the most common types
Patterned hair loss:
 - Age: puberty or older
inflammation; scales Trichotillomania
Obsessive-Compulsive Personality Disorder (OCPD): Pathogenesis and Clinical Findings
 • Miserly - Lack of generosity when it
others #OCPD #ObsessiveCompulsive