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1.
Case Rep Dermatol ; 12(3): 199-208, 2020.
Article in English | MEDLINE | ID: mdl-33362504

ABSTRACT

Subcutaneous panniculitis-like T-cell lymphoma (SPTCL) is a rare subtype of cutaneous T-cell lymphoma. There may be a significant histologic overlap with traumatic panniculitis and lupus profundus. We describe a 54-year-old woman who had received a diagnosis of SPTCL based upon a left parietal scalp biopsy 5 years earlier. This diagnosis was supported by immunohistochemistry (IHC) demonstrating a CD8+ predominant lymphocyte population in the subcutis. T-cell gene rearrangement studies were not performed at that time. The patient was treated and showed significant clinical improvement. When several tender erythematous subcutaneous nodules appeared on the upper back, left plantar surface and pretibial region, repeat biopsy was performed. Histology revealed a lobular and septal panniculitis with no vasculitis. The infiltrate contained abundant eosinophils and histiocytes not seen in the original biopsy specimen. IHC demonstrated a mixture of CD4+, CD8+ and CD7+ lymphocytes with abundant CD68+ histiocytes. T-cell gene rearrangement studies performed on one of the lesions failed to demonstrate clonality. It is important to recognize that patients with SPTCL are not exempt from other types of panniculitis, and complete histologic, IHC and molecular workups are essential to properly classify all cutaneous lesions in these patients.

2.
Indian J Dermatol ; 63(2): 147-154, 2018.
Article in English | MEDLINE | ID: mdl-29692457

ABSTRACT

BACKGROUND: Giant basal cell carcinoma (GBCC) is defined as a basal cell carcinoma (BCC) exceeding 5 cm in size. While these tumors impart significant morbidity due to local tissue destruction and have a higher rate of metastatic disease than their conventional (smaller) counterparts, reasons for their large size remain unclear. While theories relating to neglect or faster growth rate are often invoked; to date, there has not been a comprehensive evaluation of the histologic features of these large tumors that may contribute to their size. METHODS: Histologic features of GBCCs (n = 29) were evaluated and compared to those of conventional BCC (n = 28). Available clinical demographic data were also reviewed. RESULTS: GBCCs, in addition to overall larger size, more often were thicker, displayed ulceration, and showed a more infiltrative growth pattern than their conventional counterparts. These rare tumors also displayed an insignificant increased propensity for a brisk host immune response, and the infiltrate significantly more often included clusters of plasma cells. CONCLUSIONS: Most histologic features seen in GBCCs likely reflect their large size. Histologic features alone are unlikely to explain the size of these rare tumors. The possibility of an altered host immune response contributing to the growth of these tumors requires further investigation.

3.
Am J Dermatopathol ; 34(7): e103-5, 2012 Oct.
Article in English | MEDLINE | ID: mdl-22576077

ABSTRACT

A heterogeneous group of benign fibrohistiocytic lesions has been assembled under the umbrella term, dermatofibroma. These lesions share a morphology of bland spindled cells encompassed by and intercalating through thick dermal collagen; unique variants have been described based on secondary histologic features, some of which include aneurysmal, myxoid, lipidized, signet ring, angiomatous, and keloidal. Here, we present a distinct dermatofibroma variant henceforth known as collapsing angiokeloidal dermatofibroma identified in 2 patients with slowly growing nodules of the buttock and the arm. Microscopically, the lesions have a characteristic dermatofibroma appearance but are accompanied by unusual diffuse small caliber vessels whose walls are collapsed by a thick, eosinophilic, keloid-like substance. The eosinophilic material resembles the adjacent dermal collagen; however, it does not stain for type-4 collagen or type-1 procollagen, amyloid, or glycogen. Although the exact composition of the keloidal material remains ambiguous, the architectural novelty of collapsing angiokeloidal dermatofibroma serves to further expand the morphologic spectrum of benign fibrous histiocytomas, although highlighting the difficulty in distinguishing between it and similar lesions.


Subject(s)
Blood Vessels/pathology , Histiocytoma, Benign Fibrous/pathology , Keloid/pathology , Skin Neoplasms/pathology , Adult , Biomarkers, Tumor/analysis , Biopsy , Blood Vessels/chemistry , Buttocks , Female , Histiocytoma, Benign Fibrous/blood supply , Histiocytoma, Benign Fibrous/chemistry , Histiocytoma, Benign Fibrous/classification , Humans , Immunohistochemistry , Male , Skin Neoplasms/blood supply , Skin Neoplasms/chemistry , Skin Neoplasms/classification , Upper Extremity
4.
Article in English | WPRIM (Western Pacific) | ID: wpr-626619

ABSTRACT

A cross-sectional study was conducted in two hospitals in Hargeisa city to determine the job and organizational stress among nurses and doctors in ICU and its influencing factors. A universal sampling method was carried out and one hundred and twenty questionnaires were distributed among nurses and doctors working in intensive care units of two hospitals on different shift duties; morning, afternoon, night and rotation shifts. The response rate was 83.3%. Regression analysis showed that approximately 88% (adjusted R square = 0.889) of the variation in stress mean score was explained by the background variables. Experience, role overload, physical environment and marital status were significant predictors.

5.
Am J Surg Pathol ; 35(11): 1700-5, 2011 Nov.
Article in English | MEDLINE | ID: mdl-21997690

ABSTRACT

Sarcina organisms were first observed in and recorded from the stomach contents of a patient suffering from vomiting by John Goodsir in 1842. Since that time, their fine structure, phylogenetic classification, and biochemical characteristics have been described. Although numerous cases of fatal disease have been attributed to this organism in the veterinary literature, only a few human cases have been documented. As a result, whether this organism causes disease in humans has not been definitively established. We report the clinicopathologic findings in a series of 5 patients with Sarcina-like organisms identified in upper gastrointestinal endoscopic biopsies with molecular confirmation. Our findings have shown that the organism is most commonly found in patients with a history of gastric outlet obstruction or delayed gastric emptying. Although many of the patients do not demonstrate direct mucosal injury from the organism, the presence of a concurrent gastric ulcer puts the patient at increased risk for complications such as emphysematous gastritis or perforation. The finding of Sarcina organisms should prompt further investigation for functional causes of gastric outlet obstruction and delayed gastric emptying, such as occult malignancy.


Subject(s)
Gram-Positive Bacterial Infections/microbiology , Sarcina/isolation & purification , Stomach/microbiology , Adult , Baltimore , Biopsy , Child , DNA, Bacterial/analysis , Endoscopy, Gastrointestinal , Female , Gastric Outlet Obstruction/complications , Gastroparesis/complications , Gram-Positive Bacterial Infections/pathology , Humans , Male , Middle Aged , Polymerase Chain Reaction , Prospective Studies , RNA, Ribosomal, 16S/analysis , Ribotyping , Risk Factors , Sarcina/classification , Sarcina/genetics , Stomach/pathology , Stomach Ulcer/complications
6.
Article in English | WPRIM (Western Pacific) | ID: wpr-628084

ABSTRACT

Objective: A cross-sectional study was conducted in Malaysia with the objectives of determining the prevalence of smoking in Malaysia, reasons for starting to smoke, age first started to smoke, duration of smoking and to determine the relationship between smoking and age, sex,race, education level, peer influence and parental smoking status. Methods:All residents aged 18 years and above from selected households were included in this study. A standardised pre-tested structured questionnaire was used in this study. Results: The results showed that the overall mean age of the 17.246 respondents was 38.8 (95% CI=38.5-39.2) years with a range of 18-100 years. The majority were Malays (55.5%) followed by Chinese (21.2%) and Indians (11.2%). The age , sex and ethnicity adjusted prevalence of ever and current smokers were 32.0% and 24.9% respectively. The prevalence of ever and current smokers for males was 59.3% and 47.2% respectively. For the females,the prevalence of ever and current smokers was 4.8% and 2.7% respectively. The highest ethnicity adjusted prevalence of current smokers was in Malays (28.9%) followed by the Chinese (18.7%). The lowest prevalence was amongst the Indians (16.8%). The highest prevalence of current smokers was found in Kelantan (30.2%), Terengganu (29.7%), Pahang (28.7%) and Kedah (26.9%); the lowest prevalence was in Kuala Lumpur, Federal Territory (20.4%). The overall mean initiation age of current smokers was 19.2 years (95% CI=19.1. 19.4 years). The mean initiation age of male current smokers was significantly lower (18.9 years) compared to female current smokers(24.1 years). The mean duartion of smoking amongst the current smokers was 18.6 years .Males smoked significantly more cigarettes than the females (p<0.001). Discussion: Multivirate logistic regression analysis showed that smoking was significantly associated with age, sex, ethnicity, educational level and peer and family influence.

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