- Modified Uniportal Video-Assisted Thoracic Surgery Versus Three-Port Approach for Lung Nodule Biopsy in Pediatric Cancer Patients. [Journal Article]
- JLJ Laparoendosc Adv Surg Tech A 2018 Nov 10
- CONCLUSIONS: MU-VATS can be safely utilized for biopsy of peripheral lung nodules in pediatric cancer patients without increasing procedural duration, hospitalization, pain scores, or need for intraoperative blood transfusion. Further studies need to evaluate the theoretical cosmetic advantage from a single surgical scar.
- Multiple Eccrine Spiradenomas in a Zosteriform Distribution. [Journal Article]
- SSkinmed 2018; 16(5):351-352
- A 52-year-old man was referred to our department with a 28-year history of painful nodular lesions located on his left buttock and left inguinal region that had recently increased in size and number....
A 52-year-old man was referred to our department with a 28-year history of painful nodular lesions located on his left buttock and left inguinal region that had recently increased in size and number. The lesions had developed progressively over many years. Cutaneous examination revealed multiple, well-circumscribed, subcutaneous, blue-gray nodules in a zosteriform distribution across the left inguinal region and the left buttock. Some of the painful nodules were large and ulcerated (Figure 1). Computed tomography showed multiple cutaneous nodules but no bone metastases or subcutaneous invasion. Histologic examination of a nodule demonstrated sharply delineated dermal nodules comprising basaloid cells arranged in a trabecular pattern surrounded by eosinophilic fibrous strands (Figure 2). No evidence of malignant transformation was noted. A diagnosis of multiple eccrine spiradenomas was made, and the patient underwent surgical excision of the painful and ulcerated nodules. He was regularly followed up in our department for 12 years.
- A comparative analysis of EGFR-targeting antibodies for gold nanoparticle CT imaging of lung cancer. [Journal Article]
- PlosPLoS One 2018; 13(11):e0206950
- Computed tomography (CT) is the standard imaging test used for the screening and assessment of suspected lung cancer, but distinguishing malignant from benign nodules by CT is an ongoing challenge. C...
Computed tomography (CT) is the standard imaging test used for the screening and assessment of suspected lung cancer, but distinguishing malignant from benign nodules by CT is an ongoing challenge. Consequently, a large number of avoidable invasive procedures are performed on patients with benign nodules in order to exclude malignancy. Improving cancer discrimination by non-invasive imaging could reduce the need for invasive diagnostics. In this work we focus on developing a gold nanoparticle contrast agent that targets the epidermal growth factor receptor (EGFR), which is expressed on the cell surface of most lung adenocarcinomas. Three different contrast agents were compared for their tumor targeting effectiveness: non-targeted nanoparticles, nanoparticles conjugated with full-sized anti-EGFR antibodies (cetuximab), and nanoparticles conjugated with a single-domain llama-derived anti-EGFR antibody, which is smaller than the cetuximab, but has a lower binding affinity. Nanoparticle targeting effectiveness was evaluated in vitro by EGFR-binding assays and in cell culture with A431 cells, which highly express EGFR. In vivo CT imaging performance was evaluated in both C57BL/6 mice and in nude mice with A431 subcutaneous tumors. The cetuximab nanoparticles had a significantly shorter blood residence time than either the non-targeted or the single-domain antibody nanoparticles. All of the nanoparticle contrast agents demonstrated tumor accumulation; however, the cetuximab-targeted group had significantly higher tumor gold accumulation than the other two groups, which were statistically indistinguishable from one another. In this study we found that the relative binding affinity of the targeting ligands had more of an effect on tumor accumulation than the circulation half life of the nanoparticles. This study provides useful insight into targeted nanoparticle design and demonstrates that nanoparticle contrast agents can be used to detect tumor receptor overexpression. Combining receptor status data with traditional imaging characteristics has the potential for better differentiation of malignant lung tumors from benign lesions.
- A solitary presentation of panniculitis in a patient with a history of breast cancer. [Journal Article]
- AMAnn Med Surg (Lond) 2018; 36:54-57
- CONCLUSIONS: Panniculitis of the breast is a rare condition that needs to be included in the differential diagnosis of subcutaneous breast masses. In all cases, but specifically in females with history of breast cancer, panniculitis still should be thought of as a possibility, and imaging as well as other diagnostic techniques can aid in making the correct diagnosis.
- Surgical Site Infections due to Non-Tuberculous Mycobacteria. [Journal Article]
- JJJNMA J Nepal Med Assoc 2018 Mar-Apr; 56(211):696-700
- CONCLUSIONS: There should be high level of clinical suspicion for patients presenting with delayed post- operative wound infections for the diagnosis of non-tubercular mycobacreria as causative agents. These infections not only cause physical but also emotional distress that affects both the patients and the surgeon. Emphasis should be given on good sterilization technique to avoid such infections.
- Granulomas Following Subcutaneous Injection With Aluminum Adjuvant-Containing Products in Sheep. [Journal Article]
- VPVet Pathol 2018 Oct 31; :300985818809142
- The use of vaccines including aluminum (Al)-based adjuvants is widespread among small ruminants and other animals. They are associated with the appearance of transient injection site nodules correspo...
The use of vaccines including aluminum (Al)-based adjuvants is widespread among small ruminants and other animals. They are associated with the appearance of transient injection site nodules corresponding to granulomas. This study aims to characterize the morphology of these granulomas, to understand the role of the Al adjuvant in their genesis, and to establish the presence of the metal in regional lymph nodes. A total of 84 male neutered lambs were selected and divided into 3 treatment groups of 28 animals each: (1) vaccine (containing Al-based adjuvant), (2) adjuvant-only, and (3) control. A total of 19 subcutaneous injections were performed in a time frame of 15 months. Granulomas and regional lymph nodes were evaluated by clinicopathological means. All of the vaccine and 92.3% of the adjuvant-only lambs presented injection-site granulomas; the granulomas were more numerous in the group administered the vaccine. Bacterial culture in granulomas was always negative. Histologically, granulomas in the vaccine group presented a higher degree of severity. Al was specifically identified by lumogallion staining in granulomas and lymph nodes. Al median content was significantly higher ( P < .001) in the lymph nodes of the vaccine group (82.65 μg/g) compared with both adjuvant-only (2.53 μg/g) and control groups (0.96 μg/g). Scanning transmission electron microscopy demonstrated aggregates of Al within macrophages in vaccine and adjuvant-only groups. In these two groups, Al-based adjuvants induce persistent, sterile, subcutaneous granulomas with macrophage-driven translocation of Al to regional lymph nodes. Local translocation of Al may induce further accumulation in distant tissues and be related to the appearance of systemic signs.
- Cutaneous metastases as initial presentation of malignancy. [Journal Article]
- BCBJR Case Rep 2018; 4(1):20170059
- We describe a case of 73-year-old female who presented with dry cough, chest pain and light-headedness. On examination, multiple subcutaneous masses were noticed on the chest wall, bilateral breast, ...
We describe a case of 73-year-old female who presented with dry cough, chest pain and light-headedness. On examination, multiple subcutaneous masses were noticed on the chest wall, bilateral breast, anterior abdomen and both arms. Subsequent CT-TAP and CT-brain showed multiple subcutaneous nodules in scalp, neck, anterior chest wall, breast and abdomen. A biopsy taken from breast revealed metastatic malignant melanoma; however there was no evidence of primary cutaneous malignant melanoma. We also describe a case of 72-year-old male who presented with tender mass on his lower back and posterior neck. He was known to have COPD and was a heavy smoker. A CT-TAP showed right lower lung mass with soft tissue masses near lumbar spine and lower cervical spine. While awaiting bronchoscopy, biopsy taken from the mass on lower back showed features of metastatic lung adenocarcinoma. In fact, presence of cutaneous metastasis is heraldsign and indicates advanced malignancy with poor prognosis regardless of type of primary malignancy.
- Clinicopathologic, immunophenotypic, and molecular analysis of subcutaneous panniculitis-like T-cell lymphoma: A retrospective study in a tertiary care center. [Journal Article]
- JCJ Cutan Pathol 2018 Oct 23
- CONCLUSIONS: The correlation between clinicopathologic and immunophenotypic study is the most helpful method to give a precise diagnosis of SPTL. Rimming of CD8+ atypical lymphocytes highlighted by high Ki-67 index is highly specific for the diagnosis of SPTL. This article is protected by copyright. All rights reserved.
- Wells' syndrome associated with eosinophilic panniculitis presenting with multiple subcutaneous nodules. [Journal Article]
- EJEur J Dermatol 2018 Oct 15
New Search Next
- Indeterminate dendritic cell neoplasm accompanied by eosinophilic pneumonia successfully treated by systemic steroid therapy: Report of the first case with muscular and parotid involvement and review of published work. [Journal Article]
- JDJ Dermatol 2018 Oct 15
- A 34-year-old Japanese man presented with an indolent nodule on the right flank. Computed tomography of the chest and abdomen demonstrated a large nodule measuring 55 mm × 50 mm in the abdominal obli...
A 34-year-old Japanese man presented with an indolent nodule on the right flank. Computed tomography of the chest and abdomen demonstrated a large nodule measuring 55 mm × 50 mm in the abdominal oblique muscle layer of the right flank, and several small nodules were seen in the muscle layer throughout the body and subcutaneous tissue of the lower abdomen. 18 F-fluorodeoxyglucose-positron emission tomography/computed tomography revealed nodular lesions in the bilateral parotid glands, bilateral cervical lymph nodes and lower lobe of the right lung. Intermittently, ground-glass shadows developed in the bilateral lungs. Histologically, sheet-like nodules in the abdominal oblique muscle layer and parotid gland were composed of large polygonal cells with convoluted nuclei and ample eosinophilic cytoplasm. Several lymphocytes and considerable eosinophils were intermingled. Lung biopsy demonstrated an inflammatory infiltrate of lymphocytes and considerable eosinophils in the alveoli. Immunohistochemically, polygonal cells were positive for S100 protein and CD1a, but negative for langerin and BRAFV600E . Some cells were positive for CD68. Electron microscopy demonstrated histiocytic cells with phagosomes and interdigitating processes. However, no Birbeck granules were observed. Eosinophilia was seen in the peripheral blood. Multifocal nodules and ground-glass shadows gradually diminished following systemic administration of oral prednisolone. We describe a case of indeterminate dendritic cell neoplasm with multifocal involvement of the muscle, subcutis, lymph node and parotid gland accompanied by chronic eosinophilic pneumonia that was successfully treated by systemic steroid therapy. Neither muscular nor parotid indeterminate dendritic cell neoplasms accompanied by eosinophilic pneumonia have been previously reported.