Importance of PET/CT in Initial Workup of Head and Neck Squamous Cell Carcinoma.

Objective: Assess the impact of positron emission tomography/computed tomography (PET/CT) on disease staging at presentation in patients with head and neck squamous cell carcinoma.

Study Design: Retrospective cross-sectional review.

Setting: Academic multicenter single institution (Geisinger Health System).

Thyroid Abscess: A Case Series and Literature Review.

Objective: In this retrospective case series, we chronicle six patients presenting with acute suppurative thyroiditis (AST) with progression to thyroid abscess in a single institution.

Methods: Patients ranged in age from 16 to 74 years of age. The most common presenting symptoms were progressive unilateral neck pain, swelling, and odynophagia.

Accurate Operative Time Prediction in Thyroid Surgery: A Rural Tertiary Care Facility Experience.

Objective: To determine whether surgeons can estimate thyroid operative time more accurately than a system-generated average time estimate.

Methods: Four otolaryngologists at a single institution with extensive endocrine surgery experience were asked to predict their operative times for all eligible thyroid surgeries. These estimates were compared to system-generated operative time predications based on averaging the surgeon's previous 10 cases with the same Current Procedural Terminology code.

Novel tools for genetic manipulation of follicle stem cells in the Drosophila ovary reveal an integrin-dependent transition from quiescence to proliferation.

In many tissues, the presence of stem cells is inferred by the capacity of the tissue to maintain homeostasis and undergo repair after injury. Isolation of self-renewing cells with the ability to generate the full array of cells within a given tissue strongly supports this idea, but the identification and genetic manipulation of individual stem cells within their niche remain a challenge. Here we present novel methods for marking and genetically altering epithelial follicle stem cells (FSCs) within the Drosophila ovary.

Ack kinase regulates CTP synthase filaments during Drosophila oogenesis.

The enzyme CTP synthase (CTPS) dynamically assembles into macromolecular filaments in bacteria, yeast, Drosophila, and mammalian cells, but the role of this morphological reorganization in regulating CTPS activity is controversial. During Drosophila oogenesis, CTPS filaments are transiently apparent in ovarian germline cells during a period of intense genomic endoreplication and stockpiling of ribosomal RNA. Here, we demonstrate that CTPS filaments are catalytically active and that their assembly is regulated by the non-receptor tyrosine kinase DAck, the Drosophila homologue of mammalian Ack1 (activated cdc42-associated kinase 1), which we find also localizes to CTPS filaments.