Mucormycosis of paranasal sinus is most common in?
ANSWER: (B) DiabetesREF: Harrison 17th ed p.1261, International Journal of Infectious Diseases Volume 15, Issue 8, Pages e533-e540, August 2011, Dhingra 4th ed chapter 38Though no book mention most common cause but since diabetes Is most common among the mentioned causes, we can take it as answer,MUCORMYCOSIS:Caused by - rhizopus , rhizomucor , cunninghamellaMoulds with non septate hyphaeThe higher prevalence of mucormycosis in India turned out to be statistically significant (p < 0.0001. in comparison with all other countriesPredisposing factorsOrgan transplant recipientsLong term desferroxamine therapyImmunosuppression due to steroids or cytotoxic drugsHematological malignancyDiabeticsChronic renal failureFive forms1. Rhino cerebral (most common site)2. Pulmonary mucormycosis (2n* most common)3. Cutaneous4. Gastrointestinal5. DisseminatedDiagnosis:Microscopy and biopsy show organisms that appears as broad ribbon like usually non septate hyphae which branch at right angles
HIV
Diabetes
Those on immuno suppressants
Post surgical
Nose and PNS