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Benign Osteoma Occluding External Canal
There is a large osteoma almost totally occluding this patient's external ear canal. Unlike exostoses in which the normal self cleansing mechanism of the external ear canal remains intact, osteoma's tend...
Mixed Bacterial and Fungal Otitis Externa
This patient presented with chronic otitis externa due to a combination of both bacteria and Aspergillus. The white fluffy cotton fibers of Aspergillus can be seen floating on top of a thick suppurative...
Severe Acute Otomycosis with Ulceration of the...
This patient who presented with severe pain and bleeding due to an acute Aspergillus Niger otomycosis is seen here after debridement. Note the ulceration of the lateral surface of the tympanic membrane...
Otomycosis Superinfection
This patient who has a large central perforation in the left tympanic membrane and chronic otitis media, has developed a fungal superinfection from an Aspergillus species. Note white straight fluffy hyphae...
![Otomycosis [Candida Albicans]](https://medtube.net/images/min/a60d79c2b71487d68346c4656c6b927c/149/112/1 "Otomycosis [Candida Albicans]")
Otomycosis [Candida Albicans]
The cheesy white debris which lacks any visible spores suggested that it was caused by Candida albicans. This was confirmed by culture.
Aspergillus NigerPlate Culture
Most cases of otomycosis are caused by either an Aspergillus infection or a Candidal infection. this photograph shows the typical appearance of Aspergillus Niger on plate culture.
Candida Albicans Plate Culture
Note the typical discrete round white yeast colonies of Candida Albicans seen on a culture plate.
![Aspergillus Niger Fruiting Head [histology]](https://medtube.net/images/min/46ca7517cded81c3ada3c8d06843a324/149/112/1 "Aspergillus Niger Fruiting Head [histology]")
Aspergillus Niger Fruiting Head [histology]
The fruiting head or conidiophore of Aspergillus Niger is characterized by a sporangium with radiating spokes, surrounded by numerous tiny spores on the periphery. It is the spores when observed otoscopically...
Large Osteoma Occluding External Canal
There is a large broad-based osteoma occluding this external auditory canal.
![Pedunculated Osteoma of the External Canal [axial CT Scan]](https://medtube.net/images/min/a5970c30a2999b5812f0150bebcb7038/149/112/1 "Pedunculated Osteoma of the External Canal [axial CT Scan]")
Pedunculated Osteoma of the External Canal [axial...
Note in this axial CT Scan the pedunculated osteoma projecting into the posterior external canal.
Preauricular Pit and Infected Preauricular Sinus
This patient demonstrates both a preauricular pit and an infected preauricular sinus. Thanks to Dr Anthony F Jahn.
![Osteoma Ear Canal [microradiograph]](https://medtube.net/images/min/dec76fa9f90eb7144dbc3a9f2c8b81fb/149/112/1 "Osteoma Ear Canal [microradiograph]")
Osteoma Ear Canal [microradiograph]
This is a microradiograph of an osteoma removed from the external auditory canal demonstrating the cancellous nature of the bone.
![Osteoma of the External Canal [histology]](https://medtube.net/images/min/67309dc05c4f19a8a777229d2ca7b54c/149/112/1 "Osteoma of the External Canal [histology]")
Osteoma of the External Canal [histology]
This photograph shows the histopathology of an osteoma, arising in the external auditory canal. Unlike exostoses, an osteoma is a true benign tumor of bone. Histologically, an osteoma consists of cancellous...
![Osteoma of the External Canal [histology]](https://medtube.net/images/min/5819c45e79535e3e21b2facf63f58fef/149/112/1 "Osteoma of the External Canal [histology]")
Osteoma of the External Canal [histology]
This photograph shows the histopathology of an osteoma, arising in the external auditory canal. Unlike exostoses, an osteoma is a true benign tumor of bone. Histologically, an osteoma consists of cancellous...
Prior Idiopathic Osteitis of the Floor of the...
This patient with prior osteitis of the tympanic bone has healed and re-epithelialized over the defect where the sequstrum has been expelled. Note the scooped out area on the floor of the deep external...
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