Presentation
Digit pain and swelling. Known case of psoriasis.
Patient Data
Age: 35 years
Gender: Female
From the case:
Sausage digit
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/119919/annotated_viewer_json?iframe=true\u0026lang=us"}
There is a cortical irregularity with mild periosteal reaction in the proximal phalanx of the right hand's second finger, accompanied by surrounding soft tissue swelling consistent with the sausage digit.
Case Discussion
The sausage digit refers to the fusiform swelling of a digit due to soft tissue inflammation from underlying arthritis or dactylitis, and psoriasis is one of the important causes.
The other important etiologies are tuberculous dactylitis (spina ventosa) and sickle cell disease.