True about mucormycosis is?

All of the above REF: Harrison 17th ed p 1261, International Journal of Infectious Diseases Volume 15, Issue 8, Pages e533-e540, August 2011 Mucormycosis Caused by -- rhizopus , rhizomucor , cunninghamella Moulds with non septate hyphae The higher prevalence of mucormycosis in India turned out to be statistically significant (p < 0.0001) in comparison with all other countries Predisposing factors - Organ transplant recipients - Long term desferroxamine therapy - Immunosuppression due to steroids or cytotoxic drugs - Hematological malignancy - Diabetics - Chronic renal failure Five forms Rhinocerebral (most common site) Pulmonary mucormycosis (2nd most common) Cutaneous Gastrointestinal Disseminated Diagnosis: Microscopy and biopsy show organisms that appears as broad ribbon like usually non septate hyphae which branch at right angles