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  Table of Contents  
IMAGES IN NEPHROLOGY
Year : 2013  |  Volume : 23  |  Issue : 3  |  Page : 235-236
 

Chromoblastomycosis in a renal allograft recipient


1 Nephrology and Poisoning Services, PVS Memorial Hospital, Kaloor, Kochi, India
2 Nephrology Service, Lakeshore Hospital, Nettor, Kochi, India
3 Histopathology Service, Amrita Institute of Medical Sciences, Ponnekara, Kochi, India

Date of Web Publication14-May-2013

Correspondence Address:
Y S Sooraj
Nephrology and Poisoning Services, PVS Memorial Hospital, Kaloor, Kochi - 682 017
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-4065.111868

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How to cite this article:
Sooraj Y S, Nainan G K, Eapen M, Immanuel A J, Pillai R R. Chromoblastomycosis in a renal allograft recipient. Indian J Nephrol 2013;23:235-6

How to cite this URL:
Sooraj Y S, Nainan G K, Eapen M, Immanuel A J, Pillai R R. Chromoblastomycosis in a renal allograft recipient. Indian J Nephrol [serial online] 2013 [cited 2021 Sep 20];23:235-6. Available from: https://www.indianjnephrol.org/text.asp?2013/23/3/235/111868


A 50-year-old lady presented with a progressive ulcero-proliferative lesion over the right heel for over 1 month. She was diagnosed with end-stage kidney disease 18 months earlier and had undergone a successful live-related renal transplantation 12 months ago. She was on prednisolone, cyclosporine, and mycophenolate mofetil. Ten months later, she developed severe allograft dysfunction, and renal allograft biopsy revealed acute humoral rejection. She was treated with dialysis, plasmapheresis, and rituximab. Cyclosporine was replaced with tacrolimus. Her allograft function improved but did not reach the baseline.

Clinical evaluation revealed an ulcero-proliferative lesion measuring 2 × 1.5 × 0.3 cm. The lesion was completely excised. Sections from skin epidermis showed pseudoepitheliomatous hyperplasia with hyperkeratosis, parakeratosis, acanthosis, spongiosis, and an area of ulceration with a sinus tract. Exocytosis of neutrophils with microabscesses was also noted. There was marked ballooning degeneration in the upper layers of the epidermis. Dermis showed dense lichenoid granulomatous inflammatory infiltrate. Multiple small abscesses composed predominantly of neutrophils admixed with lymphocytes, plasma cells, and eosinophils were seen. Numerous giant cells containing multiple brown-pigmented, ovoid, thick-walled, sclerotic/copper-penny/Medlar bodies were observed, singly scattered and in chain-like clusters. There was no budding and many of the sclerotic bodies showed septations [Figure 1]. These were characteristic of chromoblastomycosis.
Figure 1: Light microscopy (× 40, magnification) showing numerous giant cells containing multiple brown-pigmented, ovoid, thick-walled sclerotic/ copper-penny/Medlar bodies seen singly scattered and in chain-like clusters (arrows). These are characteristic of chromoblastomycosis

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She was treated with oral itraconazole for a period of 4 weeks. There was no recurrence of the lesion and the wound has healed well.

Terra et al., first used the term chromoblastomycosis in cases of polymorphic fungal disease of the lower limbs presenting with nodules or verrucous plaques with hyperkeratosis and acanthosis of the affected epithelial tissues, which could develop into complications such as ulceration, lymphedema, and squamous cell carcinoma. [1] It is mainly caused by the fungal genera Fonsecaea, Phialophora, and Cladophialophora that are saprophytes in soil and plants. [2] The vast majority of cases are attributed to Fonsecaea pedroso. [3] The diagnosis is based on Potassium Hydroxide examination, identification of organism in histologic sections, culture of the organism that reveals slow-growing green to black colonies, and microscopic appearance of the conidia formation, which helps in identifying the species. [4] Medlar bodies seen in either pathologic or microbiologic examinations are diagnostic. They are defined as rounded, brown structures, 5-10 mm in diameter, with thick walls and internal septations. [5]

The characteristic lesion is the warty papule or plaque. The disease spreads to the adjacent skin by forming satellite nodules. Metastatic spread to other organs is very rare. [6] Few cases have been reported from India also [7],[8] and this is the second case to be reported among renal allograft recipients. [9]

 
  References Top

1.Terra F, Torres M, Fonseca Filho O, Arêa Leão AE. Novo tipo de dermatite verrucosa: Micose por Acrotheca com associação de leishmaniose.Bras Med 1922;36:363-8.  Back to cited text no. 1
    
2.Ameen M. Chromoblastomycosis: Clinical presentation and management. Clin Exp Dermatol 2009;34:849-54.  Back to cited text no. 2
    
3.Vieira MR, Martins ML. Micoses subcutâneas. Trab Soc Port Dermatol Venerol 2004;62:137-67.  Back to cited text no. 3
    
4.Sayal SK, Prasad GK, Jawed KZ, Sanghi S, Satyanarayana S. Chromoblastomycosis. Indian J Dermatol Venereol Leprol 2002;68:233-4.  Back to cited text no. 4
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5.Brandt ME, Warnock DW. Epidemiology, clinical manifestations, and therapy of infections caused by dematiaceous fungi. J Chemother 2003;15:36-47.  Back to cited text no. 5
    
6.Carrión AL. Chromoblastomycosis and related infections: New concepts, differential diagnosis, and nomenclatorial implications. Int J Dermatol 1975;14:27-32.  Back to cited text no. 6
    
7.Sharma NL, Sharma RC, Grover PS, Gupta ML, Sharma AK, Mahajan VK. Chromoblastomycosis in India. Int J Dermatol 1999;38:846-51.  Back to cited text no. 7
    
8.Sharma A, Hazarika NK, Gupta D. Chromoblastomycosis in sub-tropical regions of India. Mycopathologia 2010;169:381-6.  Back to cited text no. 8
    
9.Jha V, Krishna VS, Chakrabarti A, Sharma PK, Sud K, Kohli HS, et al. Subcutaneous phaeohyphomycosis in a renal transplant recipient: A case report and review of the literature. Am J Kidney Dis 1996;28:137-9.  Back to cited text no. 9
    


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