Paul K. Shitabata

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Melanoma may be difficult to identify histologically and relatively high rates of misdiagnosis leads to many malpractice claims. Currently separation of melanomas from nevi is based primarily on light microscopic interpretation of hematoxylin and eosin stained sections with limited assistance from immunohistology. To increase the accuracy of discrimination(More)
BACKGROUND AND OBJECTIVES The theoretical model of CO2 laser tissue interaction appeared to be too simplistic. To explain the reactions seen in skin, a more complex model was needed. We hoped to correlate the clinical-histologic patterns of CO2 laser tissue interactions. STUDY DESIGN/MATERIALS AND METHODS The Ultrapulse CO2 laser was used on normal and(More)
BACKGROUND Hematologic malignancies expressing CD4 and CD56 are most commonly associated with the recently described CD4(+) CD56(+) hematodermic neoplasm. METHODS Thirteen cases of CD4(+) CD56(+) hematologic malignancies were prospectively encountered in the routine and referral practices of the authors. RESULTS Patients 1 and 2 were elderly men(More)
A clinical case of apparent air embolism through a radial artery line served as the impetus to conduct a study in primates to investigate the possibility of air embolism from the radial artery into the cerebral circulation. Using 133Xe cerebral scanning, we demonstrated that greater than 2 ml of air in the radial artery would result in retrograde passage of(More)
Hyperinfection caused by Strongyloides stercoralis in iatrogenically immunosuppressed patients is becoming more frequently observed. Here, we review the relevant literature and present a recent case of hyperinfection syndrome of S stercoralis in a patient chronically treated with systemic corticosteroids and methotrexate for dermatomyositis. The patient was(More)
BACKGROUND Many fillers have been used to augment the lips. One of these that has provided long-term satisfactory results is liquid silicone. OBJECTIVE To demonstrate the efficacy and safety of lip augmentation with liquid silicone. METHOD Following a discussion of the benefits and risks of the procedure and the benefits and risks of alternatives and(More)
UNLABELLED This study was undertaken to assess the relationship between the degree of 99mTc-MIBI uptake in breast lesions and the following histologic factors: neovascularity, desmoplastic reaction, cellular proliferation and mitochondrial density. METHODS Forty-two patients who previously underwent MIBI breast imaging (4 false-negative, 12(More)
Multicentric reticulohistiocytosis (MR) is a rare non-Langerhans histiocytosis that is characterized by cutaneous nodules and severe destructive arthritis. Although 25-30% of reported cases have been associated with internal malignancies, the pathophysiology of MR is unknown. Herein, we report two cases of MR that were associated with urologic neoplasms.(More)
BACKGROUND Hypopigmentation has plagued all methods of skin resurfacing. Whether the physician uses chemical peels, dermabrasion or laser resurfacing hypopigmentation can develop. OBJECTIVE To examine the pathogenesis and treatment of hypopigmentation after resurfacing. METHODS Areas of hypopigmentation after skin resurfacing were blended in with(More)