Publications by authors named "Demitsu T"

Article Synopsis
  • The skin can indicate internal diseases, with Bazex syndrome being a specific condition that shows erythematous hyperkeratosis and yellowish scales on palms and soles.
  • There is a notable link between Bazex syndrome and certain cancers, particularly squamous cell carcinomas (SCC), which raises its importance in early cancer detection.
  • The text presents cases of Bazex syndrome associated with SCC in the glottis and lung, while also providing insights on the disease's clinical manifestations and pathogenesis.
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The skin microbiome at lesion sites in patients with atopic dermatitis (AD) is characterized by dysbiosis. Although the administration of dupilumab, an IL-4Rα inhibitor, improves dysbiosis in the bacterial microbiome, information regarding the fungal microbiome remains limited. This study administered dupilumab to 30 patients with moderate-to-severe AD and analyzed changes in both fungal and bacterial skin microbiomes over a 12-week period.

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Skin reflects the presence of systemic diseases, leading to an unexpected diagnosis of insidious diseases. Deck-chair sign is a unique skin eruption characterized by widespread erythematous papules that become erythrodermic with spare skin folds. An association between the deck-chair sign and malignancies, especially hematological neoplasms, has been suggested.

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A 74-year-old woman was admitted with hypercalcemia and prolonged disturbance of consciousness. The left buttock to the anterior aspect of the left thigh was swollen and erythematous, with a collection of 1.0-cm large, firm, elastic nodules distributed in a zosteriform pattern in the L1-L4 region.

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Mucous membrane pemphigoid (MMP), previously called cicatricial pemphigoid, is a rare subepidermal immunobullous disorder that primarily affects the mucous membranes (1,2). MMP is divided into two major subtypes, anti-BP180-type MMP and anti-laminin-332 (previously called laminin 5 or epiligrin) MMP. Anti-laminin-332 MMP is known to be associated with malignant tumors (3), which may cause overexpression of autoantibodies and induce autoimmunity to laminin-332 (4).

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A man in his thirties was suspected of committing a sexual offense against a young girl. A video on his mobile telephone provided the only evidence. Photographs obtained from the video showed male genitalia in two views, with the penis in both views exhibiting unique pigmentation.

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Calcific myonecrosis (CM) is a rare condition in which a large calcified mass develops after trauma. Generally, CM occurs in a lower extremity, and there have been no reports of its occurrence in the upper arm. We report 2 cases of infected CM, including a rare case of CM occurrence in the arm and a typical case in the leg.

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Pemphigoid cases have been reported in association with vaccination, including pneumococcal vaccination in infants but not in adults. There are also sporadic reports of pemphigoid diseases involving reactions to multiple autoantigens. We herein report a 75-year-old Japanese patient with pemphigoid who had immunoglobulin G antibodies to both the BP180 C-terminal domain and laminin-γ1 (p200), which developed 1 day after pneumococcal vaccination.

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Article Synopsis
  • The role of Panton-Valentine leukocidin (PVL) toxin in necrotizing soft tissue infections (NSTI) remains debated among researchers.
  • This study presents the complete genome sequence of a PVL-negative strain, identified as JMUB1273.
  • The strain was obtained from a patient suffering from severe NSTI, highlighting the complexity of these infections.
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We herein report a 42-year-old man with advanced lung adenocarcinoma and nivolumab-associated dermatomyositis. Nivolumab, an anticancer drug that is classified as an immune checkpoint inhibitor, often induces immune-related adverse events (irAEs). However, there have so far been no reports regarding nivolumab-associated dermatomyositis.

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Bullous pemphigoid (BP) is a common autoimmune blistering disorder with unknown etiology. Recently, increasing numbers of BP cases which developed under the medication with dipeptidyl peptidase-4 inhibitors (DPP4i), widely used antihyperglycemic drugs, have been reported in published works. Here, we report a case of DPP4i (teneligliptin)-associated BP that developed in a 70-year-old Japanese man.

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