Linked from

The 117 pages that link to Differential diagnosis, each with the reason it gives.

• Hallucinogen persisting perception disorderRelated: Clinicians assess other neurological, ophthalmological, psychiatric, and substance-related explanations for visual symptoms.

• Mass psychogenic illnessRelated: Similar symptoms can result from organic disease, exposure, or psychogenic processes.

• Narcissistic personality disorderRelated: Overlapping traits require distinguishing this diagnosis from other personality disorders and mood conditions.

• ChikungunyaRelated: Dengue and Zika can resemble chikungunya and require different clinical considerations.

• Developmental coordination disorderRelated: Assessment must consider neurological, sensory, intellectual, and other explanations for motor difficulties.

• Dissociative amnesiaRelated: Clinicians assess neurological, substance-related, and psychiatric explanations before diagnosing dissociative amnesia.

• Dissociative disorderRelated: Clinicians must consider neurological, substance-related, trauma-related, and other psychiatric explanations for dissociative symptoms.

• Plant toxicityRelated: Plant poisoning can resemble other illnesses, so competing causes must be considered.

• Premenstrual syndromeRelated: Persistent or cycle-independent symptoms may point to another or coexisting condition.

• Sexual sadism disorderRelated: Assessment must separate this diagnosis from other conditions and nonclinical interests.

• Bipolar I disorderRelated: Other psychiatric or medical causes can resemble mania and require consideration.

• Cyclothymic disorderRelated: Diagnosis requires separating cyclothymic symptoms from other causes of mood fluctuation.

• Abdominal painNarrower topic: Abdominal pain has many causes, so evaluation weighs competing explanations.

• Behçet's diseaseRelated: Recurrent ulcers and inflammation also occur in several other diseases.

• Depersonalization-derealization disorderRelated: Similar symptoms can arise from other psychiatric, neurological, or substance-related causes.

• Dubin–Johnson syndromeRelated: It prevents benign inherited hyperbilirubinemia from being mistaken for obstruction or liver injury.

• ErythromelalgiaRelated: Cellulitis, gout, and vascular disorders can resemble an erythromelalgia attack.

• HaphephobiaRelated: Clinicians consider trauma-related, sensory, pain, and other anxiety explanations for touch avoidance.

• HypomaniaRelated: Similar changes in mood and activity can arise from several psychiatric or medical causes.

• Intermittent explosive disorderRelated: Clinicians assess whether another disorder, substance, or medical condition better explains outbursts.

• Acute abdomenRelated: The initial task is to rank causes by likelihood and danger, not identify one symptom alone.

• Cyclic vomiting syndromeRelated: Metabolic, gastrointestinal, neurologic, and exposure-related causes must be considered.

• Excoriation disorderRelated: Assessment rules out skin diseases, substances, and other conditions that could explain the lesions or picking.

• Keratosis pilarisRelated: Similar-looking follicular disorders can require different care.

• Obsessive–compulsive personality disorderRelated: Clinicians distinguish OCPD from OCD, autism, anxiety, and other possible explanations for rigidity.

• Schizoid personality disorderRelated: Clinicians consider mood, psychotic, neurodevelopmental, and other personality conditions before assigning this diagnosis.

• Brief psychotic disorderRelated: Similar psychotic symptoms can arise from psychiatric, medical, or substance-related causes.

• Dependent personality disorderRelated: Clinicians distinguish pervasive dependency from anxiety, mood symptoms, and culturally expected reliance.

• Joseph MerrickRelated: Merrick’s case illustrates how limited evidence can sustain competing medical explanations.

• KleptomaniaRelated: Assessment separates kleptomania from theft driven by need, gain, mania, or other conditions.

• LethargyRelated: Many unrelated illnesses and exposures can produce lethargy, so its cause must be assessed.

• PodiatryRelated: Foot pain can arise from local, systemic, vascular, or neurological causes.

• Schizotypal personality disorderRelated: Social withdrawal and unusual beliefs require consideration of other possible diagnoses.

• Signs and symptomsRelated: The same findings can fit several conditions, so alternatives must be weighed.

• AstheniaRelated: Because asthenia has many causes, clinicians use this process to narrow its explanation.

• Clinical lycanthropyRelated: Clinicians consider psychiatric, neurological, substance-related, and medical explanations for the presentation.

• Delusional parasitosisRelated: Clinicians assess for actual infestation, skin disease, medication effects, and other psychiatric causes.

• Doctor's visitRelated: The physician compares plausible causes before settling on a diagnosis or further tests.

• DysthymiaRelated: Chronic low mood requires consideration of other psychiatric, medical, and substance-related causes.

• Fever of unknown originRelated: Evaluation proceeds by revising possible causes as evidence accumulates.

• Histrionic personality disorderRelated: Mood disorders and other personality disorders can resemble parts of the presentation.

• LogorrheaRelated: Excessive speech can arise from mood episodes, language disorders, substances, or other causes.

• MyalgiaRelated: Muscle pain has many possible causes, so its pattern and accompanying symptoms shape the evaluation.

• Paranoid personality disorderRelated: Clinicians assess whether suspiciousness reflects personality, psychosis, trauma, substances, or another cause.

• Reactive attachment disorderRelated: Withdrawal and limited social response can arise from conditions other than attachment disorder.

• Symptomatic treatmentRelated: Relieving symptoms does not replace evaluating what might be causing them.

• Truman Show delusionRelated: Similar beliefs can arise in different psychiatric, medical, or substance-related contexts.

• Werner syndromeRelated: Several progeroid and connective-tissue disorders can resemble Werner syndrome.

• Aarskog–Scott syndromeRelated: Several genetic disorders can resemble Aarskog–Scott syndrome in appearance or growth.

• Acute medicineRelated: Acute presentations often begin with uncertainty, so clinicians compare plausible causes before settling on a diagnosis.