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Key Clinical Message: Endometrial lymphoma is a rare etiology of abnormal uterine bleeding and endometrial thickening, and often shares similar clinical and imaging characteristics with other uterine malignancies such as endometrial carcinoma. Chemotherapy appears adequate for treating primary endometrial lymphoma. We report a case of primary endometrial diffuse large B‐cell lymphoma to increase awareness of this condition which is essential for correct diagnosis and treatment. [ABSTRACT FROM AUTHOR]

Background: Thyroid nodule fine needle aspiration (FNA) biopsies are associated with a low false-negative rate. There is limited data regarding the predictive value of American College of Radiology Thyroid Imaging Reporting and Data System for false-negative FNA. Methods: This single-center retrospective study evaluated 119 patients who underwent thyroidectomy. The association of TR category, along with other clinical variables, with false-negative FNA was evaluated. Results: The overall false-negative rate of FNA was 10.8% (n = 9). False-negative FNAs were associated with younger age (mean 42 years vs 50.6 years, P =.04), larger nodule size (mean 4.4 cm vs 3.2 cm, P =.03), and a lower TR category (median 3 v 4, P =.01). Discussion: Lower TR category, younger age, and larger nodule size were associated with false-negative FNA of thyroid nodules. These findings should be taken into context when counseling patients with thyroid nodules who have a benign FNA. [ABSTRACT FROM AUTHOR]

We present the case of a fifteen-year-old male with hypertrophic pyloric stenosis (HPS) thought to have originated in early infancy when chronic non-bilious emesis, early satiety and failure to thrive were evident. He developed two episodes of perforated pre-pyloric ulcer at ages 12- and 14-years. Work up for chronic Helicobacter pylori and Zollinger Ellison syndrome were negative. An upper GI study revealed a massively enlarged stomach and delayed gastric emptying. Endoscopic ultrasound revealed a thickened pylorus and a narrow pyloric canal. Electrogastrogram and antroduodenal motility studies supported a mechanical gastric outlet obstruction. A distal gastrectomy with Billroth I reconstruction was performed. One year after surgery, the patient's symptoms resolved and he had gained 14.5 kg in weight. This is a very rare case of HPS presenting after infancy and emphasizes the importance of early diagnosis of HPS to prevent long term complications including failure to thrive and death. [ABSTRACT FROM AUTHOR]