prototheca wickerhamii algae, 3d . causes infection in human protothecosis seen as skin nodules

prototheca wickerhamii algae 3d illustration achlorophyllous environment human protothecosis infection skin subcutaneous tissue bursa elbow systemic hyperkeratosis parakeratosis acanthosis bursitis joint sporangium sporangia microscope microscopy magnification smear spore endospores shape medical cutaneous dermatology medicine research science scientific biology biological education diagnostics diagnosis rare neglected