Diagnosis

The diagnosis, abbreviated Dx is the key to treatment. Pathologists diagnose.

Differential diagnosis

When the diagnosis cannot be made people generate list of possibilities; this is known as the differential diagnosis, abbreviated DDx.

Clinical diagnosis

A diagnosis that is made with clinical information. These diagnoses cannot be made from a biopsy without the history, as they lack distinctive pathologic characteristics that allow them to be separated from all other diagnoses.

Associated diagnosis

A diagnosis that is seen in association with another diagnosis, e.g. dermatitis herpetiformis is associated with celiac disease.

Diagnosis synonyms

Many diagnoses are known by several names due to historical reasons. Many old terms prove to be misnomers as the understanding evolves, yet they remain entrenched due to usage.

Onlinepathology.org redirects what it deems to be synonyms. Unique diagnoses are added to diagnosis category, while synonyms are not, e.g. Warthin tumour is in diagnosis category while papillary cystadenoma lymphomatosum is not.

List of diagnoses

• All diagnoses - all unique diagnoses contained on onlinepathology.org.
• Diagnoses by site:
  • Short power list - a brief DDx by site.
  • Long power list - a longer DDx by site.
• Morphologic DDx:
  • Pleomorphic tumours.
  • Large epithelioid tumours.
  • Small round blue cell tumours.
  • Spindle cell tumours.

See also

• Waffle diagnosis.
• Spot diagnoses.
• Specimen diagnosis.