Sweet's Syndrome

presented by

Thencheri Cheriath Satish MD

Dubai, UAE

July 27, 2006

 
Abstract A 52-year-old man presented with 2-week history of fever, malaise and painful erythematous plaques over the face, chest and upper limbs. A diagnosis of sweet's syndrome was made. The management of this condistion was discussed.
Patient
C.G., 52-year-old man
Duration
5 months
Distribution
Face, Chest and Upper limbs
History

52-year-old Indian presented with fever, malaise and painful erythematous plaques over the face, chest and upper limbs of 2 weeks duration. He had an URTI 3 weeks prior to the onset of skin lesions. There was no history of bleeding disorder,urinary or bowel symptoms. There was no history of drug intake prior to onset of lesions.
Past history: he had similar lesions 5 months ago which had cleared spontaneously after 3 weeks with post inflammatory pigmentation.
Family history: His father died of leukemia (type not known) at the age of 50 years.

Physical Examination
Patient was febrile-temp 38.2 degC. He had multiple erythematous tender plaques over the malar region, upper limbs and presternal region of varying sizes and shapes. Some of them were arciform. There was no sensory impairment or nerve thickening. There was no mucosal lesions. No generalised lymphadenopathy or organomegaly.
Images

 

Laboratory Data

Total WBC count - Differential count - P75%, L23%, E2%
Hb/RBC Count - within normal limits
ESR - 34mm/hr
Peripheral blood film showed leukocytosis with neutrophilia

Histopathology

There was a dense dermal neutrophilic infiltrate involving the upper and mid dermis with leukocytoclasis, extravasation of RBC's.There was no frank vasculitis,or blister formation.There were no atypical cells in the inflammatory infiltrate

Diagnosis Sweet's Syndrome
Reasons Presented

Probably an under-diagnosed condition since fever and neutrophilia is not seen in all cases (though called acute febrile neutrophilic dermatosis).

Sweet's syndrome can herald the onset of malignancy.

Questions

1) Should the patient receive episodic therapy with steroids or does he require maintenance treatment with drugs like Dapsone

2) Is he at a risk of malignancy especially since his father died of leukemia

3) How long should he be followed up?

References

1)Sweet RD: An acute febrile neutrophilic dermatosis. Br J Dermatology 76:349,1964

2)Cohen PR et al: Malignancy associated sweet's syndrome: Review of world literature. J Clin Oncol 6:1887, 1988

Keywords sweet's syndrome, febrile neutrophilic dermatoses
Comments from Faculty and Members

Jeffrey Callen MD, Professor of Medicine (Dermatology), Chief, Division of Dermatology, Department of Medicine, University of Louisville School of Medicine, Louisville, KY, USA on July 27, 2006

1) Should the patient receive episodic therapy with steroids or does he require maintenance treatment with drugs like Dapsone?
It sounds to me like he has had two episodes of Sweet's. With only two such instances, I would not place the patient on chronic therapy, but rather treat as you have with a short course of corticosteroids. Should he develop more episodes that are frequent, then I would consider suppressive therapy. Although dapsone has been used, in my experience it is of limited value. There are multiple therapies, but one of the more reliable is thalidomide.

2) Is he at a risk of malignancy especially since his father died of leukemia? If the father's leukemia was genetically based (Philadelphia chromosomal abnormality) then perhaps the patient is at increased risk. However, I do not perform evaluation beyond a CBC with a peripheral smear and perhaps a serum protein electorphoresis.

3) How long should he be followed up?
If the disease is in remission, then you might consider allowing the patient to contact you only when additional problems arise.

Davy Chan MD, Hong Kong, SAR China, on August 30, 2006

I don't think this man needs long term maintaince with dapsone. However, given the family hostory of leukaemia and the ? relapse nature of this episode, I think I will follow up the patients regularly.

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