Injection of cryopreserved amniotic membrane and umbilical cord particulate for pressure injuries: a retrospective case series.

INTRODUCTION: PI poses a significant burden to society. Cryopreserved AMUC has potential benefits in managing complex wounds owing to its anti-inflammatory, anti-scarring, and proregenerative properties. AMUC grafts are commonly in sheets, but also come as morselized powders that can be sprinkled or injected. The authors initially used AMUC injection in chronic PIs in March 2017. MATERIALS AND METHODS: This is a single-center, retrospective review of patients with nonhealing PIs treated with AMUC particulate between March 2017 and November 2018. Incidence of wound healing (zero wound volume with complete reepithelialization) was measured at 12, 24, 36, and 52 weeks. RESULTS: Review included 26 PIs (21 patients); of which, 85% were stage 4 PIs, per the NPIAP staging system. After AMUC injection, 14 PIs (54%) achieved complete wound closure at a median of 12.4 weeks (range, 5-52 weeks). Complete wound closure was observed in 7 patients (27%) at 12 weeks, 10 patients (38%) at 24 weeks, 13 patients (50%) at 36 weeks, and 14 patients (54%) at 52 weeks. One patient with vascular issues required amputation; however, no treatment-related adverse events or complications were observed. CONCLUSIONS: These preliminary results suggest that injection of AMUC particulate may be a safe and promising treatment in promoting wound closure of difficult-to-treat PIs.

Proteomic profiling of tear fluid as a promising non-invasive screening test for colon cancer.

BACKGROUND: Current screening options for colorectal cancer (CRC) are either invasive (colonoscopy) or have lower sensitivity to identify pre-malignant lesions (fecal immunochemical test). We proposed to identify protein profiles in tears of patients with both pre-malignant polyps and CRC; these profiles could have potential as a noninvasive screening test. METHOD: Colonoscopy patients were divided into "high risk" group (CRC and tubular adenomatous polyp) and "low risk" (normal and hyperplastic polyps). Tear fluids from patients were analyzed by Liquid Chromatography Mass Spectrometry/Mass Spectrometry. The data were analyzed for protein expression, protein-protein interaction and gene set enrichment. RESULTS: The results showed 80 proteins (18 up-regulated and 62 down-regulated) significantly differentiated in "high-risk" compared to "low-risk"; Twenty-eight of these show protein-protein interactions, 9 of which were associated with pathways demonstrated to be altered in CRC patients. CONCLUSION: Our pilot data, though limited, demonstrated tear protein profiling could distinguish the groups of patients with and without colon lesions.

Association of tobacco and alcohol use with earlier development of colorectal pathology: should screening guidelines be modified to include these risk factors?

BACKGROUND: Current guidelines for colorectal cancer (CRC) screening recommend initial screening at 50 years of age for normal-risk patients. Alcohol and tobacco use can be associated with an earlier onset of CRC and possibly polyps. METHODS: We reviewed all colonoscopies performed at our institution from January to December 2007. Patient data were collected on age, sex, tobacco and alcohol history, and the presence of colon lesions. RESULTS: Our data included 663 patients (643 men and 20 women) with a mean age of 60.7 years (range 23-89 years); 68.5% were current/former tobacco users, 53.7% were current/former alcohol users, 37.6% had used both, and 21.7% had used neither. Colonoscopy findings were as follows 64% of patients had no lesions, 30.6% had tubular polyps, 3.5% had villous polyps, and 2% had cancer. The current use of tobacco, alcohol, or both was associated with the early development of colon pathology (ie, 66.9 years, 61.1 years, and 59.2 years [P < .05], respectively). In nonusers, the mean age was 67.7 years. CONCLUSIONS: Our work confirms that the use of alcohol and tobacco is associated with an earlier onset of colon pathology. Consideration should be given to modifying screening guidelines to include these habits as "high-risk" factors.

A report of laryngeal adenocystic carcinoma metastatic to the spleen and the role of splenectomy in the management of metastatic disease: a case report.

INTRODUCTION: Adenoid cystic carcinoma (ACC) of the larynx is a rare malignancy characterized by an indolent course and late pulmonary metastases. Metastases from the larynx to the spleen are an unusual event. In the present report, we discuss a patient with adenoid cystic carcinoma of the larynx metastatic to the spleen. A review of the literature did not yield any other such incidents. We review the clinical presentation and course of adenoid cystic carcinoma, as well as the role of splenectomy for metastases. CASE PRESENTATION: We present a case of laryngeal adenoid cystic carcinoma in a 26-year-old Caucasian man treated with total laryngectomy and ionizing radiation. He initially developed asynchronous pulmonary metastases, which were resected. Our patient subsequently presented with a symptomatic splenic lesion consistent with metastatic disease, for which he underwent laparoscopic splenectomy. CONCLUSIONS: Splenectomy might be indicated for isolated metastases. A splenectomy effectively addresses symptoms and serves as a cytoreduction modality.

Association of tobacco and alcohol use with earlier development of colorectal cancer: should we modify screening guidelines?

BACKGROUND: Current guidelines recommend initial colorectal cancer screening at age 50 years for average-risk patients. Alcohol and tobacco use can be associated with earlier onset of colorectal cancer. We hypothesized an earlier age at diagnosis and/or more advanced stage in patients with these habits. METHODS: We queried our tumor registry for colorectal cancer diagnosed between January 1997 and December 2006. Data were analyzed to evaluate effects of alcohol and tobacco use. RESULTS: Of 335 colorectal cancer patients, 81% used tobacco, 51% used alcohol, 45% used both, and 14% used neither. Current tobacco and alcohol use were associated with younger ages at onset of colorectal cancer. Thirteen of 332 patients were diagnosed with colorectal cancer before age 50 years. All had exposure to alcohol and tobacco. Fifty-four percent (7/13) of these patients presented at stage 3/4 compared with 34% of the overall population. CONCLUSIONS: Modification of screening guidelines to include these habits as "high-risk" factors may be indicated.

Surgical benefits conveyed by biopsy site marking system using ultrasound localization.

BACKGROUND: With vacuum-assisted biopsy technology all, or most, of a breast lesion may be removed during the initial biopsy; in such cases a metallic marker is often inserted at the site of the biopsy for future localization. The aim of this study was to evaluate the efficacy and impact of the Gel Mark Ultra biopsy site marking system (SenoRx, Aliso Viejo, CA) on the practice of needle localization breast biopsy. METHODS: We retrospectively analyzed the experience of 45 general surgeons across the United States in a variety of practice settings using the Gel Mark Ultra clip. Imaging-guided biopsy technique, localization quality, surgeon confidence, and margin status were assessed and compared against the broad data reported in the literature. RESULTS: A total of 432 records of patients who underwent imaging-guided breast biopsy with placement of Gel Mark Ultra clip were reviewed. Of these, 63 (15%) patients required definitive surgical intervention, for which 41 cases were localized with ultrasound and assessed for margin clearance. Clear margins were achieved in 37 (90%) of the 41 cases. These results are statistically superior (P < .01) to positive margins rates reported in the literature. CONCLUSIONS: The Gel Mark Ultra biopsy site marking system is a new localization device that provides a safe and effective alternative to traditional localization methods with a significant reduction in the percentage of positive margins, as well as advantages in terms of surgical approach, time, and patient comfort.

Touch preparation of breast core needle specimens is a new method for same-day diagnosis.

BACKGROUND: Touch preparation cytology (TPC) has proven to be a quick and accurate intraoperative diagnostic tool for excisional breast biopsy, margins and sentinel nodes. We hypothesized that TPC of core needle biopsy (CNB) specimens can provide a same-day diagnosis in the outpatient setting. METHODS: Outpatients presenting with breast lesions underwent TPC of biopsy cores performed by biopsy gun or vacuum-assisted CNB. The TPC results were compared with the final diagnosis of CNB specimens. RESULTS: In all, 199 CNB and TP were performed between August 1997 and October 2002. Twenty-nine percent of lesions were malignant. Touch preparation was deferred in 21% of cases. In the remaining 157 evaluable cases, TPC had an accuracy of 89% and a false negative rate of 26%. The sensitivity, specificity, positive predictive value and negative predictive value of TPC were 74%, 97%, 93%, and 86% respectively. CONCLUSIONS: Touch preparation cytology on CNB can be performed simply in the outpatient setting. Collaboration between the surgeon and pathologist allows TP to be an accurate means of same-day pathological determination.

Intraoperative touch preparation for sentinel lymph node biopsy: a 4-year experience.

BACKGROUND: The optimal technique for intraoperative pathologic examination of sentinel lymph nodes (SLNs) is still controversial. Recent small series report sensitivity between 60% and 100% for various techniques. The aim of this study was to evaluate our long-term experience with touch preparation cytology (TPC) and frozen section (FS) in the intraoperative examination of SLNs for breast cancer. METHODS: A total of 247 patients with operable breast cancer underwent an SLN biopsy for staging of the axilla. The SLN was identified by (99m)Tc-labeled sulfur colloid unfiltered dye, blue dye, or both and dissected, and then intraoperative TPC or FS and permanent section, or both, were performed. RESULTS: A total of 479 SLNs were submitted for TPC and permanent hematoxylin and eosin. A total of 68 SLNs were positive by hematoxylin and eosin; 65 SLNs were positive by TPC, with a false-negative rate of 5.8%. The sensitivity for TPC was 94.2%, with a false-positive rate of 0.2%. A total of 165 SLNs were submitted for FS, with a sensitivity of 85.7% and a specificity of 98.6%. The false-positive rate was 1.4%, with a false-negative rate of 15.8%. CONCLUSIONS: In a large series, TPC is as accurate as FS but is simpler and faster in the detection of intraoperative metastasis in SLNs for breast cancer.