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dermatiti

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ANGIOSARCOMA  A: Low-power image of a subtle variant of angiosarcoma mimick...
Published: 01 January 2024
ANGIOSARCOMA Figure 11-29 ANGIOSARCOMA A: Low-power image of a subtle variant of angiosarcoma mimicking radiation dermatitis. The cells of concern are seen at the left hand side of the field. B: High-power view shows the scattered highly atypical endothelial cells of angiosarcoma. C: Another hi... More about this image found in ANGIOSARCOMA A: Low-power image of a subtle variant of angiosarcoma mimick...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-13
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... in the superficial dermis. Lichenoid LM needs to be distinguished from an inflamed solar lentigo, lichenoid keratosis, or lichenoid dermatitis with postinflammatory hyperpigmentation. For distinction, it is important to assess the density and growth pattern of melanocytes and not to confuse true nests from...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-01
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... lentigo may be associated with a slight increase in the density of cytologically bland solitary units of melanocytes. Some lesions are inflamed, often in the pattern of lichenoid lymphocytic dermatitis, with variable numbers of melanophages. Such lesions are also termed lichenoid keratosis...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-03
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... dome-shaped surface; wedge-shaped silhouette Intradermal or predominant intradermal nevus Occupies papillary and reticular dermis Little or no adventitial involvement Meyerson nevus Associated spongiotic or psoriasiform and spongiotic (eczematous) dermatitis Mitotically active nevus Features...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-02
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... into fibrous stroma as solitary units. CMN WITH LYMPHOCYTE-LIKE MELANOCYTES Figure 2-8 CMN WITH LYMPHOCYTE-LIKE MELANOCYTES There are several variants of CMN ( 1 ). These include CMN with junctional features of a dysplastic nevus, halo CMN, and CMN with spongiotic dermatitis (Meyerson phenomenon). Some CMN...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 18
Published: 01 January 2024
10.55418/9781933477367-11
ISBN-10: 1-933477-36-9
ISBN: 978-1-933477-36-7
... of the former can be positive and some of the latter negative. Newer markers that may be helpful in the diagnosis of angiosarcoma have been reported (see below). Postradiation dermatitis is another differential diagnostic consideration ( 49 ). It is characterized by ectatic vessels with prominent endothelial...
Images
LYMPHOMAS USUALLY AFFECTING THE VULVA  A: Diffuse large B-cell lymphoma fea...
Published: 01 February 2023
LYMPHOMAS USUALLY AFFECTING THE VULVA Figure 5-91 LYMPHOMAS USUALLY AFFECTING THE VULVA A: Diffuse large B-cell lymphoma features a population of large pleomorphic cells with open chromatin, visible nucleoli, and brisk proliferation. B: Lymphoplasmacytic lymphoma shows a similarly atypical nonco... More about this image found in LYMPHOMAS USUALLY AFFECTING THE VULVA A: Diffuse large B-cell lymphoma fea...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 14
Published: 01 February 2023
10.55418/9781933477268-5
ISBN-10: 1-933477-26-1
ISBN: 978-1-933477-26-8
... and the pattern of keratinization is necessary. Psoriasis exhibits prominent “test-tube” rete but lacks either atypia or divergent maturation. Spongiotic dermatitis may exhibit acantholysis, but the nuclear features remain uniform. Lichen planus, lichen sclerosus, and lichen simplex...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 7
Published: 01 September 2021
10.55418/9781933477121-3
ISBN-10: 1-933477-12-1
ISBN: 978-1-933477-12-1
... with lymphomatoid papulosis ( 147 ). Various forms of dermatitis, eczema, and psoriasis show significant clinical overlap with classic mycosis fungoides, particularly in its early stages ( 148 ). In addition, there are rare but well-documented clinical variants of mycosis fungoides that mimic inflammatory...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 7
Published: 01 September 2021
10.55418/9781933477121-2
ISBN-10: 1-933477-12-1
ISBN: 978-1-933477-12-1
... differentiation has been suggested by some authors ( 138 ). ACTINIC HEMANGIOMA Figure 2-105 ACTINIC HEMANGIOMA CD31-positive endothelial cells (brown) are completely surrounded by actin-positive myopericytes (red). Differential Diagnosis . Acrodermatitis as a severe form of stasis dermatitis is usually seen...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 4
Published: 01 April 2021
10.55418/9781933477930-05
ISBN-10: 1-933477-93-8
ISBN: 978-1-933477-93-0
... tests are often present ( 2 ). Dermatitis herpetiformis, an intensely pruritic rash composed of nodules and blisters, is seen in 10 to 15 percent of patients. The rash waxes and wanes, showing a predilection for the forearms, knees, buttocks, and hairline. Only 20 percent of patients with dermatitis...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 4
Published: 01 April 2021
10.55418/9781933477930-02
ISBN-10: 1-933477-93-8
ISBN: 978-1-933477-93-0
... . Lymphocytic esophagitis: a histologic subset of chronic esophagitis . Am J Clin Pathol   2006 ; 125 : 432 - 7 . 158. Purdy   JK , Appelman   HD , Golembeski   CP , McKenna   BJ . Lymphocytic esophagitis: a chronic or recurring pattern of esophagitis resembling allergic contact dermatitis...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 2
Published: 01 October 2020
10.55418/9781933477909-3_ch10
ISBN-10: 1-933477-90-3
ISBN: 978-1-933477-90-9
.... 10-18 ). The mean age of affected patients is 71 years (range, 55 to 84 years) ( 87 ). A clinical misdiagnosis of eczema or dermatitis may delay appropriate therapy ( 64 ). PAGET DISEASE OF THE SCROTUM Figure 10-18 PAGET DISEASE OF THE SCROTUM An ill-defined eczematous, scaly lesion involves...
Book Chapter
Series: Atlas of Non-Tumor Pathology, Series 1
Volume: 10
Published: 01 June 2012
10.55418/9781933477244-08
ISBN-10: 1-933477-24-5
ISBN: 978-1-933477-24-4
Book Chapter
Series: Atlas of Non-Tumor Pathology, Series 1
Volume: 10
Published: 01 June 2012
10.55418/9781933477244-09
ISBN-10: 1-933477-24-5
ISBN: 978-1-933477-24-4
Book Chapter
Series: Atlas of Non-Tumor Pathology, Series 1
Volume: 10
Published: 01 June 2012
10.55418/9781933477244-06
ISBN-10: 1-933477-24-5
ISBN: 978-1-933477-24-4
Book Chapter
Series: Atlas of Non-Tumor Pathology, Series 1
Volume: 10
Published: 01 June 2012
10.55418/9781933477244-07
ISBN-10: 1-933477-24-5
ISBN: 978-1-933477-24-4
Book Chapter
Series: Atlas of Non-Tumor Pathology, Series 1
Volume: 10
Published: 01 June 2012
10.55418/9781933477244-04
ISBN-10: 1-933477-24-5
ISBN: 978-1-933477-24-4
Book Chapter
Series: Atlas of Non-Tumor Pathology, Series 1
Volume: 10
Published: 01 June 2012
10.55418/9781933477244-10
ISBN-10: 1-933477-24-5
ISBN: 978-1-933477-24-4
Book Chapter
Series: Atlas of Non-Tumor Pathology, Series 1
Volume: 10
Published: 01 June 2012
10.55418/9781933477244-11
ISBN-10: 1-933477-24-5
ISBN: 978-1-933477-24-4