Hematology and Oncology Book

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PicaAka: Pagophagia, Geophagia, Amylophagia, Trichophagia

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  1. Definition of Pica
    1. DSM-IV Definition
      1. Persistent eating of nonnutritive substances
      2. Eating habits persist for 1 month or more
      3. No associated food aversion
    2. Derived from Latin for Magpie
      1. Bird with unusual eating habits
  2. Symptoms: Voracious consumption of unusual substances
    1. Ice (pagophagia)
    2. Clay (geophagia)
    3. Starch (amylophagia)
    4. Hair (Trichophagia)
  3. Associated conditions
    1. Pregnancy
    2. Iron Deficiency Anemia
    3. Obsessive Compulsive Disorder
  4. Complications
    1. Acute or chronic toxicity
      1. Heavy metal poisoning (e.g. Lead Poisoning)
    2. Vitamin or electrolyte deficiency
      1. Hypokalemia
      2. Hyperkalemia
      3. Iron Deficiency Anemia
      4. Zinc deficiency
    3. Intestinal Obstruction
      1. Bezoar associated with trichophagia
      2. Foreign Body Ingestion
    4. Malnutrition
      1. Failure to Thrive
      2. Achlorhydria
    5. Dental injury
    6. Parasitic infection
  5. Labs
    1. Complete Blood Count
    2. Lead level
    3. Serum Ferritin
    4. Serum Iron
  6. Radiology
    1. Abdominal XRay
  7. Management
    1. General nutrition counseling
    2. Manage associated conditions
      1. Iron Deficiency Anemia
      2. Lead Poisoning
      3. Parasitic infection
      4. Intestinal Obstruction
    3. Mental health counseling
    4. Selective Serotonin Reuptake Inhibitor (SSRI)
  8. References
    1. Rose (2000) J Am Board Fam Pract 13:358

Pica Disease (C0031873)

Definition (MSH)The persistent eating of nonnutritive substances for a period of at least one month. (DSM-IV)
ConceptsMental or Behavioral Dysfunction (T048)
ICD9307.52
EnglishAbnormal craving, Eats abnormal objects, Pica, Pica Disease
Spanishapetencia anormal, pica
CreditsDerived from the NIH UMLS (Unified Medical Language System)


Geophagia (C0232480)

Definition (MSH)Compulsive eating of dirt.
ConceptsMental or Behavioral Dysfunction (T048)
EnglishGeophagia
Spanishdeglución de tierra, deglucion de tierra, geofagia, geofagismo
CreditsDerived from the NIH UMLS (Unified Medical Language System)


Habitual eating of own hair (C0584961)

ConceptsMental or Behavioral Dysfunction (T048)
EnglishHabitual eating of own hair, Trichophagia
Spanishtricofagia, tricofagia habitual
CreditsDerived from the NIH UMLS (Unified Medical Language System)



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