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. 2013 Jan;58(1):85.
doi: 10.4103/0019-5154.105326.

Chloroma of perianal region masquerading as perianal abscess

Rajeev Sen  1 , Sunita Singh, Mahapatra S Qury, Sanjay Marwah, Garima Aggarwal, Shyam Singla
Affiliations

Chloroma of perianal region masquerading as perianal abscess

Rajeev Sen et al. Indian J Dermatol. 2013 Jan.

Abstract

Chloroma, also called granulocytic sarcoma (GS) or Myeloid Sarcoma, is a rare malignant extra-medullary neoplasm of myeloid precursor cells. It is usually associated with myeloproliferative disorders but its appearance may precede the onset of leukaemia. The presence of a chloroma is certainly a sign of poor prognosis. We report a case of chloroma in a middle aged female without a prior history of leukemia in the perianal skin region with clinical diagnosis of perianal abscess. When there is no concomitant leukaemia, diagnosis of chloroma may be difficult. Differential diagnoses include acute lymphoblastic leukemia, large cell NHL, lymphoblastic lymphoma, Ewing's sarcoma and cutaneous T cell lymphoma.

Keywords: Chloroma; granulocytic sarcoma; leukemia; myeloid sarcoma.

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Conflict of interest statement

Conflict of Interest: Nil.

Figures

Figure 1
Figure 1
Perianal abscess
Figure 2
Figure 2
Biopsy revealing infiltration by small round cells in dermis (H and E, ×100)
Figure 3
Figure 3
LCA positive (×100)
Figure 4
Figure 4
MPO positive (×100)
See this image and copyright information in PMC

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