Singapore progressed to DORSCON Orange on 7 February 2020 when a local case with no history of travel out of Singapore was confirmed COVID-19 positive. With the impending lockdown, decision was made to move all postgraduate programs online. The objectives of this paper are to document early experiences and lessons learnt in the conversion of face-to-face to online teaching; and to conduct a literature search for tips on effective online teaching.

No abstract available.
Asphyxia* ; Phenobarbital* ; Seizures*

We report a case of pityriasis rotunda occurring in a patient with pancreatic adenocarcinoma. The patient was a 64-year old female who had a pancreatic adenocarcinoma. The skin lesions were asymptomatic, multiple, various sized (1 to 15cm in diameter), isolated or confluent and finely scaly light brownish to grayish colored patches on the lower abdomen, back and thigh. Histopathologic findings shawed mild hyperkeratosis, atrophy, loss of granular layer, increased melanin pigments in basal layer of the epidermis and mild perivascular monocytic infiltration in the upper dermis.
Abdomen ; Adenocarcinoma* ; Atrophy ; Dermis ; Epidermis ; Female ; Humans ; Melanins ; Middle Aged ; Pancreas* ; Pityriasis* ; Skin ; Thigh

We studied 283 patients with herpes zoster who visited to the Hangang Sacred Heart Hospital between January, 1982 and December, 1985 about the distribution of age, sex, seasonal incidence, associated diseases, camplications and the effect of systemic prednisolone on post herpetic neuralgia. And we also examined the functional states of involved sensory nerve endings by observing the axon flare response to histamine test. The results were as follows . 1. There was no significant differences in sexual and seasonal distributions. 2. There were low incidences of herpes zoster in age groups of below 20 years and over 70 years than age groups of 20 69 years. 3. Sites of involvement were thoracic(170 cases), cervical(38 cases), trigeminal(35 cases), lumbar(28 cases), sacral(11 cases) and facial(1 case) dermatomes. 4. Associated diseases were diabetes mellitus(7 cases), hypertension(7 cases). pulmonary tuberculosis(6 cases), malignant neoplasms(3 cases) and renal transplantation (1 case). 5. Complications were post herpetic neuralgia(18 cases), keratoconjunctivitis(9 cases), meningoencephalitis(1 case), Ramsay Hunt syndrome(1 case), urinary difficulty(1 case) and generalized varicelliform eruption(1 case). 6. The incidence of post-herpetic neuralgia was reduced by systemic prednisolone therapy in patients over 60 years. 7. There was no decrease of axon flare by histamine test on the affected area in 18 patients with herpes zoster.
Axons ; Heart ; Herpes Zoster* ; Histamine* ; Humans ; Incidence ; Kidney Transplantation ; Neuralgia ; Prednisolone ; Seasons ; Sensory Receptor Cells

PURPOSE: There is increasing awareness of the clinical importance of early detection and treatment of posterior cruciate ligament(PCL) injury. We evaluate the usefulness of Magnetic resonance(MR) imaging in the diagnosis of PCL injury. MATERIALS AND METHODS: We retrospectively analysed the MR images of 140 cases with clinically suspected knee injury. Arthroscopic or surgical correlation was available in 63 cases. We observed the finding and extent of PCL injury and other associated abnormalities. The frequency of anterior and posterior meniscofemoral ligament was evaluated. RESULTS: Eleven PCL injuries were observed, six midsubstance tears, two tibial attachment tears, two fernoral attachment tear, one laxity. The sensitivity, specificity and accuracy of MR imaging diagnosis are 100%, 98.1%, 98.4%. MR findings of PCL injury are discontinuity and focal mass formation, irregular increased signal intensity, detachment or redundancy of the ligament with avulsed bony fragment. In all cases of injured PCL, other associated abnormalities of adjacent structures were observed. Accessory anterior and posterior meniscofemoral ligaments were observed in 67.4%(87/129). CONCLUSION: MR imaging is useful in evaluation of presence or absence of PCL injury, accurate extent of PCL injury and other important associated abnormalities of adjacent structures.
Diagnosis ; Knee Injuries ; Ligaments ; Magnetic Resonance Imaging* ; Posterior Cruciate Ligament* ; Retrospective Studies ; Sensitivity and Specificity

We reoport a case of multiple basal cell carcinoma in a 51-year-old male who have taken a herb medication for right hemiplegia during 30 years. The patient had a 15-year history of the black colored, ulcerated nodules on left forehead and erythematous, protruded masses on back. Also, he had a 6-year history of black colored, ulcerated nodules on right temporal area of scalp and brownish, flat plaques on anterior chest, Biopsy specimens from lesions revealed typical histopathologic findings of the basal cell carcinoma. Wide excision with graft was done. One year later, he was expired due to lung carcinoma.
Biopsy ; Carcinoma, Basal Cell* ; Forehead ; Hemiplegia ; Humans ; Lung ; Male ; Middle Aged ; Scalp ; Thorax ; Transplants ; Ulcer

No abstract available.

No abstract available.
Pulmonary Artery*

No abstract available.

BACKGROUND: Recent studies have suggested that house dust mite allergy is an important cause of the atopic dermatitis(A.D). However, it is not clear that. what factors may be related to the development of the mite illergy in patients with AD. OBJECTIVE: This study was done to see whether the presence of a familial background of RA implies a relationship to the mite allergy in AD. METHODS: Skin prick test and fluoroallergosorbent, test (FAST) with house dust mit,e were performed in 47 patients wih AD. RESULTS: 1. In comparison the esult of prick test with that of FAST to house dust mite antigen, it showed a concordance ra!e of 82%. And the prick test was more sensitive than the FAST. 2. The prevalence of positive FAST reactions was significantly increased in the patients with AD who had a family hitory of RA than those in patients with AD who had neither family or personal history of RA. 3. The level of specific IgE against house dust mite did not relate to the presence of family cr personal history of RA. 4. The prevalence of positive prick test results did not relate to the presence of family or personal history of RA. 5. The prevalence of positive FAST reactions, the level of specific IgE, and the rate of positive prick test results did not relate to the severity of skin involvement. 6. The most common allergens which caused positive skin reactions were house dust, cat fur, Dermatophagoides farinac, Dermatophagoides pteronyssinus, et al. Antigen score of prick test to 55 common antigens wa. significant increased in the patients with AD who had a family history of RA, but did not relat to the severity of skin involvement or the presence of personal history of RA. CONCLUSION: We may conclude that type I allergy to the house dust mit,e is not directly related to AD perse. This type of allergy to the mite seems to occur predominantly in those patient s with AD who have a farilial background of RA.
Allergens ; Animals ; Cats ; Dermatitis, Atopic* ; Dermatophagoides pteronyssinus ; Dust* ; Humans ; Hypersensitivity* ; Immunoglobulin E ; Mites ; Prevalence ; Pyroglyphidae* ; Skin