pathological

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pathological

(less commonly), pathologic
1. of or relating to pathology
2. relating to, involving, or caused by disease
3. Informal compulsively motivated

pathological

(1)
[scientific computation] Used of a data set that is grossly atypical of normal expected input, especially one that exposes a weakness or bug in whatever algorithm one is using. An algorithm that can be broken by pathological inputs may still be useful if such inputs are very unlikely to occur in practice.

pathological

(2)
When used of test input, implies that it was purposefully engineered as a worst case. The implication in both senses is that the data is spectacularly ill-conditioned or that someone had to explicitly set out to break the algorithm in order to come up with such a crazy example.

pathological

(3)
Also said of an unlikely collection of circumstances. "If the network is down and comes up halfway through the execution of that command by root, the system may just crash." "Yes, but that's a pathological case." Often used to dismiss the case from discussion, with the implication that the consequences are acceptable, since they will happen so infrequently (if at all) that it doesn't seem worth going to the extra trouble to handle that case (see sense 1).
References in periodicals archive ?
In conclusion, polypropylene suture guided microdochectomy does not require additional duct-specific imaging methods to determine and resect the pathologic discharging duct.
Additional pathologic findings present in biopsies included fibrocystic changes (n = 73; 84%), fibroadenoma (n = 10; 11.5%), papilloma (n = 1; 1%), and no additional histologic findings (n = 3; 3.5%).
To our knowledge, there is no study in the literature comparing the accuracy of MRI diagnosis to the new gold standard for pathologic diagnosis, MDM2.
Surgery (breast and sentinel node or axillary lymph node resection) was complete three to seven weeks after the last dose of either ABP 980 or trastuzumab in the neoadjuvant phase, and pathologic complete response was analyzed.
According to local review, 48% and 40.5% of patients in the ABP 980 arm and trastuzumab arm, respectively, achieved pathologic complete response.
In patients with pathologic EMG blink reflex, there was 85% probability that the headache symptoms were present and 15% probability that the symptoms were not present.
In 27 patients (33%), no pathologic finding was discovered during the BAE examination.
Clinical variables considered include age at surgery, preoperative PSA, pathologic Gleason score, surgical margin status, pathologic stage, and operation year.
Inclusion criteria included treatment-naive solitary nonmetastatic osteosarcoma of the extremity with pathologic fracture.
Among 38,557 women who underwent myomectomy without electric power morcellation, uterine cancer prevalence was 0.19% or 1 in 528, and prevalence of any pathologic abnormality was 0.67% or 1 in 150.