A 10-year-old boy presented with painful boggy swelling of scalp, multiple sinuses with purulent discharge, easily pluckable hair, and lymph nodes enlarged in occipital region, which of the following would be most helpful for diagnostic evaluation?
ABacterial culture
BBiopsy and giemsa staining
CPatch test, gram staining and Tzank smear
DKOH mount
A child comes with a circular 3cm x 3cm scaly patchy hair loss with itching in the lesions. The investigation of choice is
ATzanck smear
BGram stain
CKOH mount
DSplit skin smear
Which test is most specific for diagnosing invasive aspergillosis?
ACulture
BBeta-D-glucan assay
CMicroscopy
DGalactomannan test
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