By T. Palva
This atlas offers a close documentation of the very best booths of the center ear. New microdissection ways were constructed, most significantly anterior microdissection. as well as the tympanic hollow space, this process permits an instantaneous view into the anterior membrane of Prussak’s house, the anterior floor of the tensor fold, and the supratubal recess, parts now not explored previous. The average and hitherto unknown auxiliary aeration and drainage pathways are proven intimately. Aeration of Prussak’s area is documented utilizing either microdissection and serial sections; those pathways from the mesotympanum or from the decrease lateral attic are autonomous of the tympanic isthmus. The pathology because of persistent irritation at the aeration and drainage routes is additionally documented, and new surgical microdissection equipment for removing of the tensor fold are defined. The atlas is helpful within the temporal bone laboratory for all citizens studying anatomy and pathology of the center ear cubicles, and for the skilled otologist the photographic documentation supplies trustworthy facts of the variable constructions within the epitympanic booths.
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Additional resources for Color Atlas of the Anatomy and Pathology of the Epitympanum
59a, b). In our series of 125 microdissections the crest has only twice taken up the upper half of the separating wall while the thin tensor fold formed the lower half. In all others the crest played an insignificant role in the separation of these two major compartments. Tensor Fold. As already emphasized, this duplicate fold has a highly important strategic position as it normal- 1 Anatomy and Pathology of the Epitympanum 39 Fig. 60. Series G, adult case 15, left ear, superoposterior view. The tensor fold (TF) contains large thin areas with a few stronger connective tissue strands across the fold.
The early scientists like Siebenmann  at the end of the 19th century already had an accurate idea of this space, defining it as a forward continuation of the medial attic past the head of malleus. Its inferior limit was formed by the tensor tendon and anteriorly and upwards Color Atlas of the Anatomy and Pathology of the Epitympanum Fig. 55. A patient with a long-standing chronic otitis media with a migration cholesteatoma of the mesotympanum, right ear. a Section through a remnant of the lateral incudomalleal fold (horizontal arrow) shows dominant capillaries but only a few inflammatory cells.
The tensor fold is very thin and contains a membrane defect (oblique arrow). M = Malleus; TI = tympanic isthmus; A = anterior malleal ligamental fold; T = tensor tendon. Fig. 58. Series G, adult case 49, left ear, superoposterior view. This is the largest bony sinus seen in the anterior epitympanum in the present series. The oblique arrow points to the superior insertion of the tensor fold (TF). M = Malleus head. Fig. 59. Series A, adult case 14, left ear. a Superoposterior view through the anterior attic to the supratubal recess after removal of the tensor fold.