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CASE REPORT
Year : 1994  |  Volume : 60  |  Issue : 5  |  Page : 296-297

Hypersensitivity vasculitis induced by streptococcus pneumoniae




Correspondence Address:
C Arun Inamadar


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Source of Support: None, Conflict of Interest: None


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  Abstract 

A 10-year-old female child with pneumococcai meningitis complicated by hypersensitivity vasculitis presenting as purpuric and ecchymotic lesions is reported.


Keywords: Pneumococcus, Hypersensitivity vasculitis, Purpura.


How to cite this article:
Inamadar C A, Sampagavi V V. Hypersensitivity vasculitis induced by streptococcus pneumoniae. Indian J Dermatol Venereol Leprol 1994;60:296-7

How to cite this URL:
Inamadar C A, Sampagavi V V. Hypersensitivity vasculitis induced by streptococcus pneumoniae. Indian J Dermatol Venereol Leprol [serial online] 1994 [cited 2020 Nov 24];60:296-7. Available from: https://www.ijdvl.com/text.asp?1994/60/5/296/4082



  Introduction Top


Pneumococcus is a common cause of pneumonia. Metastatic infections by haematogenous seeding of distant suceptible sites can lead to pneumococcal meningitis, endocarditis, pericarditis, arthritis or ophthalmitis. Cutaneous lesions associated with S. pneumoniae are scarcely reported in the literature except reports which have documented cases of periorbital cellulitis with violaceous discoloration of skin in infants. [1]

We report here a case of hypersensitivity vasculitis induced by S. pneumoniae presenting as purpuric and ecchymotic lesiosn.


  Case Report Top


A female aged 10 years admitted in paediatric unit for pyogenic meningitis caused by S pneumoniae, proved by CSF cytochemistry and culture was referred to skin OPD for skin lesions of 1 day duration. Cutaneous examination revealed purpuric and ecchymotic lesions over extremities [Figure - 1]. CNS examination revealed neck rigidity and positive Kernig's sign.

Routine haematological and coagulation profile values were within the normal limits. Blood culture and skin lesion (purpuric) sent for culture were bacteriologically sterile. Histopathological examination of biopsied specimen revealed findings suggestive of hypersensitivity vasculitis [Figure - 2]. Treatment with benzyl penicillin and gentamicin improved the condition of the child. By the end of 10th day repeat CSF examination was sterile bacteriologically with almost complete clinical improvement.


  Comments Top


Cutaneous abnormalities are uncommon in most systemic bacterial infections with often unclear pathogenesis. Proposed mechanisms responsible for most lesions are bacterial induced vascular damage, vessel injury from immune reaction to the organisms, microbial production of a toxin that causes cutaneous disease and altered haemostasis induced by infection. [2]

In the present case the probable mechanism of appearance of purpuric and ecchymotic lesions can be explained by vessel injury from immune reactions. There is evident leucocytoclastic vasculitis histopathologically. Culture and stains of the skin lesions were negative bacteriologically, suggesting bacterial fragment provoking immunologic reaction that has caused vascular injury. Purpura is the common cutaneous manifestation of hypersensitivity vasculitis favouring dependent parts of the body as in the present case.

Purpuric lesions as part of purpura fulminans are reported in asplenic patients, who are at risk for pneumococcal sepsis. [3] Such phenomenon is ruled out in the present case because of normal coagulation profile and absence of any widespread intravascular coagulation histopathologically.

 
  References Top

1.Thirmoorthi MC, et al. Violaceous discoloration in pneumococcal cellulitis. Paediatrics 1978; 62:492.  Back to cited text no. 1    
2.Hirschman JV. Cutaneous signs of systemic bacterial infection. In: Principle and practice of Dermatology (Sams WN, Lynch PJ, eds), 1st edn. New York : Churchill Livingstone, 1990; 89.  Back to cited text no. 2    
3.Arnold HC, Odom RB, James WD. Cutaneous vascular diseases. In: Andrew's Diseases of the skin, 8th edn, Philadelphia : WB Saunders, 1990; 954.  Back to cited text no. 3    


    Figures

[Figure - 1], [Figure - 2]



 

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