Wednesday, January 30, 2013

Primary cutaneous Nocardia brasiliensis cellulitis in immunocompetent child


Primary cutaneous Nocardia brasiliensis cellulitis in immunocompetent child


2012

[Article in Hebrew]

Source

Pediatric Infectious Disease Unit, Meyer Children's Hospital, Rambam Health Care Campus, Haifa, Israel. y_shahor@rambam.health.gov.il

Abstract


Primary cutaneous nocardiosis is an infrequent infection among children, generally affecting immunocompromised hosts. It is caused by Gram positive bacteria, partially alcohol and acid resistant which are saprophytes of the soil, water and organic matter. In most cases the causal agent enters through inhalation, and hematogenous dissemination may occur mainly among the immune compromised patients. Direct cutaneous inoculation is less frequent, especially among children. We report an 8-year old female who lives in an urban house with a small garden, who presented with an ulcer on her right shin accompanied by surrounding cellulitis, pain, swelling and fever. The patient's medical history was unremarkable, with no exposure to animals or travelling, except for rafting on the Jordan River the previous week. Culture from the ulcer grew Nocardia brasiliensis, and she recovered after 8 weeks of therapy with trimethoprim-sulphamethoxazole.

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Monday, November 19, 2012

Tuberculous cellulitis in a patient with chronic kidney disease and polymyalgia rheumatica.


Tuberculous cellulitis in a patient with chronic kidney disease and polymyalgia rheumatica.


Nov 2012

Source

Department of Internal Medicine, Mishuku Hospital, Japan.

Abstract


An 89-year-old man with advanced renal failure, polymyalgia rheumatica and a past history of tuberculosis was admitted with a high fever. Erythema and swelling appeared in the femoral region. Since the cellulitis failed to respond to antibiotic therapy, a skin biopsy was performed. The specimen showed the presence of epithelioid cell granuloma and panniculitis. Acid-fast organisms were found on Ziehl-Neelsen staining. A polymerase chain reaction test of tuberculosis was positive. Although a diagnosis of miliary tuberculosis was suggested, examinations of a bone marrow biopsy and fundoscopy revealed normal results. The patient's symptoms improved following treatment with isoniazid, rifampicin and ethambutol. This case represents an unusual presentation of tuberculous cellulitis in an immunocompromised patient.

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Friday, October 19, 2012

Cellulitis: diagnosis and management.


Cellulitis: diagnosis and management.


Mar 2011

Source

Columbia University College of Physicians and Surgeons, New York, NY, USA.

Abstract


Cellulitis is an acute infection of the dermal and subcutaneous layers of the skin, often occurring after a local skin trauma. It is a common diagnosis in both inpatient and outpatient dermatology, as well as in the primary care setting. Cellulitis classically presents with erythema, swelling, warmth, and tenderness over the affected area. There are many other dermatologic diseases, which can present with similar findings, highlighting the need to consider a broad differential diagnosis. Some of the most common mimics of cellulitis include venous stasis dermatitis, contact dermatitis, deep vein thrombosis, and panniculitis. History, local characteristics of the affected area, systemic signs, laboratory tests, and, in some cases, skin biopsy can be helpful in confirming the correct diagnosis. Most patients can be treated as an outpatient with oral antibiotics, with dicloxacillin or cephalexin being the oral therapy of choice when methicillin-resistant Staphylococcus aureus is not a concern.

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