Dactylitis

Dactylitis
Tuberculosis dactylitis. (Image courtesy of RadsWiki)

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-In-Chief:Aditya Govindavarjhulla, M.B.B.S. [2]

Overview

Dactylytis is a sausage-shaped swelling of the fingers and toes, and can be painful.

Historical perspective

The word dactyl comes from the Greek word "daktylos" meaning "finger". In its medical term, it refers to both the fingers and the toes.

Differential diagnosis of causes

Common causes

• seronegative arthropathies
• Bone infarcts

Organ system based

Cardiovascular	No underlying causes
Chemical / poisoning	No underlying causes
Dermatologic	No underlying causes
Drug Side Effect	No underlying causes
Ear Nose Throat	No underlying causes
Endocrine	No underlying causes
Environmental	No underlying causes
Gastroenterologic	No underlying causes
Genetic	No underlying causes
Hematologic	Sickle cell anaemia
Iatrogenic	No underlying causes
Infectious Disease	Gonococcal arthritis, Leprosy, Mycobacterium marinum, Mycobacterium tuberculosis, Treponema pallidum
Musculoskeletal / Ortho	Gonococcal arthritis, Leprosy, Mycobacterium tuberculosis, Juvenile chronic arthritis, Psoriasis, Psoriatic arthritis, Reiter's syndrome
Neurologic	No underlying causes
Nutritional / Metabolic	No underlying causes
Obstetric/Gynecologic	No underlying causes
Oncologic	No underlying causes
Opthalmologic	No underlying causes
Overdose / Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	No underlying causes
Renal / Electrolyte	No underlying causes
Rheum / Immune / Allergy	Juvenile chronic arthritis, Psoriasis, Psoriatic arthritis, Reiter's syndrome, Sarcoiditis, Sarcoidosis
Sexual	No underlying causes
Trauma	No underlying causes
Urologic	No underlying causes
Dental	No underlying causes
Miscellaneous	No underlying causes

Alphabetical order

• Gonococcal arthritis
• Juvenile chronic arthritis
• Leprosy
• Mycobacterium marinum
• Mycobacterium tuberculosis
• Psoriasis
• Psoriatic arthritis
• Reiter's syndrome
• Sarcoiditis
• Sarcoidosis
• Sickle cell anaemia
• Treponema pallidum

Diagnostic Findings

(Images shown below are courtesy of RadsWiki)

• 

  Tuberculosis dactylitis

• 

  Normal contralateral hand