Cytological diagnosis of chromoblastomycosis

Unusual Presentation of Cutaneous Chromoblastomycosis

“…Deb Roy et al 6 encountered similar difficulties in distinguishing CBM from SCC. 5,6 Similarly, the present case was definitively diagnosed after visualization of characteristic fungal "sclerotic" cells. 3,5 Special stains like periodic acid-Schiff or Gomori methenamine silver has been applied by some researchers, although that has no extra advantage.…”

“…3,5 Special stains like periodic acid-Schiff or Gomori methenamine silver has been applied by some researchers, although that has no extra advantage. Deb Roy et al 6 encountered similar difficulties in distinguishing CBM from SCC.…”

Exophytic and ulcerated nodule on the hand

“…Found extra or intracellularly (giant cells), these are often septate roundish cells with thick double-walled and pigmented membranes. Other possible histopathologic features include pseudoepitheliomatous hyperplasia, acanthosis, papillomatosis, and epidermal or dermal microabscesses [7,8]. If clinically suspected, unstained potassium hydroxide (KOH) preparations (10 %) of superficial (pigmented) skin scrapings may suffice for diagnosis, revealing characteristic fumagoid cells [4,9].…”

Mycetoma‐like chromoblastomycosis: a diagnostic dilemma

“…They are seen either in giant cells or neutrophilic abscesses in histopathology . Demonstration of muriform body in scrape smear, histopathology, or in aspiration cytology is diagnostic of chromoblastomycosis …”