Thorn prick is commonly seen in people that are involved in gardening. In some cases, they are unaware of the precedent thorn prick or present for medical attention quite late and forget about the ...history of thorn prick. In such cases, it is challenging for the clinicians and the radiologist to rule out the cause of the osteomyelitis caused by an unrecognized foreign body.
A 14-year-old girl presented with a swelling of the hand and discharging sinuses with a radiographic picture of osteomyelitis of the 5th metacarpal. The CT and MRI showed features consistent with osteomyelitis as well, possibly tuberculous in etiology. Even after the completion of AKT (anti-tubercular treatment), the patient continued to have discharging sinuses out of which a plant thorn spontaneously egressed, and subsequently, the patient was completely relieved of her symptoms. Retrospective evaluation of the MRI showed the presence of a foreign body that was hyperdense on CT and was initially thought to be a sequestrum.
Hence, even though a definite history of trauma/thorn prick is not given (although highly unusual in the case of hand), an organic foreign body should be considered in the etiologic differential diagnosis of non-responding chronic osteomyelitis and discharging sinuses.
Real Time Failure Prediction of Load Balancers and Firewalls Ghosh, Tamoghna; Sarkar, Dipanjan; Sharma, Tushar ...
2016 IEEE International Conference on Internet of Things (iThings) and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber, Physical and Social Computing (CPSCom) and IEEE Smart Data (SmartData),
2016-Dec.
Conference Proceeding
Load balancers and firewalls are entry points to many key websites in any network infrastructure. Any downtime due to these devices, even for a few minutes, may result in major business impact. There ...are many proactive event management systems/products which can monitor their health and alert on device failure. However, predicting failure with sufficient lead time still remains a challenging problem. Event management systems take system log messages and simple network management protocol (SNMP) traps as inputs and typically use rule based framework to generate network events. In this paper we discuss how we can use event data alone to build predictive model for device failures. Here all event data is generated by an event management tool. Event data volume is substantially less compared to full system log data. Also, these network devices fail rarely. Lower volume of event data enables us collect historical data for longer durations and thus collect decent number of failure samples over time which we can use for training and validation. We present a prediction model for failure events based on event sequence data. We have introduced new stratified sampling techniques along with a new feature engineering method using sliding time windows on event data. Experiments show that for rare device failure events like the load balancers it suffices to use event data to model device failures instead of using raw system log data. We have evaluated binary classification algorithms like support vector machines (SVM) and logistic regression (LR). Experimental results show that with the proper noise cleanup technique and model tuning we can achieve precision of 77% and recall of 67% for the failure predictions of network devices only from event data.
IntroductionLow-grade myxofibrosarcoma (LGMFS) is a neoplasm of soft tissues. According to the World Health Organization, LGMFS is a malignant myofibroblastic tumor arising from deep soft tissues ...with potential for recurrence and late metastatic spread. The incidence estimates are 0.18/million, accounting for 0.6% of all soft-tissue sarcomas. It can directly invade the bone and metastasize to bone; however, primary osseous low-grade myxofibrosarcoma is a rare entity. Thus, recognizing atypical presentations of uncommon neoplasms are a pertinent skill for the radiologist due to significant implications for management. Case ReportA 40-year-old male with complaints of midfoot pain was referred to radiology department for imaging. Radiographs of the foot showed a lytic mildly expansile lesion in the first metacarpal with wide zone of transition and no sclerotic margin or matrix calcification. Magnetic resource imaging (MRI) and computed tomography (CT) examination demonstrated well defined lobulated lesion which appeared heterogeneously hyperintense on T2W images with cortical breach, extraosseous soft-tissue component, and early rapid progressive enhancement. The radiological diagnosis of enchondroma with pathological fracture was considered. Atypical findings of early progressive enhancement and extraosseous soft-tissue component were, however, incongruous with enchondroma and possibility of an aggressive/malignant etiology was also considered. Hence, the lesion was biopsied and diagnosis of LGMFS was made and subsequently confirmed on excised specimen. Follow-up CT scan post 6 months of surgical resection demonstrated no recurrence. ConclusionPrimary osseous LGMFS is a rare entity and radiologically mimics enchondromas. Both LGMFS and enchondromas show T2W hyperintensity. MRI features that distinguish LGMFS from enchondroma include low apparent diffusion coefficient values and slow progressive enhancement in dynamic contrast-enhanced MRI.
IntroductionThorn prick is commonly seen in people that are involved in gardening. In some cases, they are unaware of the precedent thorn prick or present for medical attention quite late and forget ...about the history of thorn prick. In such cases, it is challenging for the clinicians and the radiologist to rule out the cause of the osteomyelitis caused by an unrecognized foreign body. Case ReportA 14-year-old girl presented with a swelling of the hand and discharging sinuses with a radiographic picture of osteomyelitis of the 5th metacarpal. The CT and MRI showed features consistent with osteomyelitis as well, possibly tuberculous in etiology. Even after the completion of AKT (anti-tubercular treatment), the patient continued to have discharging sinuses out of which a plant thorn spontaneously egressed, and subsequently, the patient was completely relieved of her symptoms. Retrospective evaluation of the MRI showed the presence of a foreign body that was hyperdense on CT and was initially thought to be a sequestrum. ConclusionHence, even though a definite history of trauma/thorn prick is not given (although highly unusual in the case of hand), an organic foreign body should be considered in the etiologic differential diagnosis of non-responding chronic osteomyelitis and discharging sinuses.
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