Different mean thickness implicates involvement of the cortex in migraine.
This was significantly different to that observed for the shallower lamellar defects; less than 20% of lamellar defects with less than a third of retinal thickness depth involvement were associated with ERM (fig 3).
High frequency ultrasound has been used in dermatology with frequencies between 20 and 100 MHz, but when the frequency is increased, axial resolution improves with a loss of depth of the image, which can be a problem for detecting tumor thickness and involvement of deep structures.
Major ureteral injuries with full-thickness mural involvement are increasingly reported after ureteroscopic stone removal (including RIRS) and occasionally PCNL, and involve the proximal, middle and distal ureter in 51 %, 14 % and 35%% of cases, respectively.
OCT findings in toxoplasmosis are well described by Goldenberg et al. who studied 17 active lesions in 11 eyes which showed full-thickness retinal involvement in all [3], although exception to this can occur, especially in early presentation of toxoplasma retinitis.
The accuracy of MRI ranges between 77 and 96% in detecting parametrial spread[ 13, 14, 20 23 ], although microscopic invasion always remains a possibility with full-thickness stromal involvement.
Posterior uveal (ciliary body and choroid) melanoma is graded according to tumour basal diameter and thickness, ciliary body involvement and extraocular extension.
Some studies use the value of 9 mm for uterosacral ligament thickness to define involvement.
The significance of this is unclear as no corresponding correlations were found with tumour thickness, lymph node involvement or margin status, any or all of which might reasonably have been expected to correlate with histological grade.
Tears have been classified based on many factors including size [ 9– 11], shape [ 12– 14], thickness [ 14], tendon involvement [ 15], etiology [ 16], duration of symptoms [ 17], and ability of the tear to be approximated to bone [ 18].
