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 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

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

No abstract available.

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

No abstract available.
Pulmonary Artery*

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

Adenocarcinoma metastatic to the skin usually originates in the lung, breast, large intestine or ovary. Cutaneous metastatic tumors from rectum or colon tend to appear in the abdominal or perineal area, but rarely appear in the perianal and genital skin. A 53-year-old female presented multiple nodules in and near the surgical scars of inguinal, pubie, vulvar, perianal areas and normal skin of left thigh two months after surgical removal of rectal adenocarcinoma. Biopsy specimens from the nodules of the perianal area and left thigh showed adenocarcinoma of well differentiated atruetures like the primary rectal carcinoma.
Adenocarcinoma* ; Biopsy ; Breast ; Cicatrix ; Colon ; Female ; Humans ; Intestine, Large ; Lung ; Middle Aged ; Ovary ; Rectum ; Skin ; Thigh

OBJECTIVES AND METHODS: The authors had attempted to find psychiatric characteristics of recruites who had complained lumbar pain. The patient group were 48 recruites who had admitted at recruit training center of the OO division from September 6 1996 to November 15 1996. The control group were 48 healthy recruites who had been chosen randomly during the same period. Each group had been examined by MMPI, BDI(Beck's depression inventory), Zung's self-rating pain and distress scale, and Barron's ego strength use. The data were analyzed by chi-square test or t-test. RESULTS: The results of this study were as follows: 1) On demographic data, patient group had distributed more common in lower level of economic status(p<.05). 2) The score of BDI and Zung's self rating pain and distress scale of patients group were significantly higher than those of control group(p<.01). 3) The mean T-score on each scale were within normal range in both group. 4) The group of patients showed significantly higher score on sclaes of Pa(p<.05), and scales of F, Hs, D, Hy, Pd, Pt, Sc(p<.01). 5) Ego strength of patients group was significantly lower than that of control group(p<.01). CONCLUSION: This finding supports the existing hypothesis that lumbar pain patients are strongly related to emotional factor.
Depression ; Ego ; Humans ; MMPI ; Reference Values ; Weights and Measures