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follicular

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SCALP NEVUS  A: There is a broad junctional nevus.  B: Nests at the dermoep...
Published: 01 February 2024
SCALP NEVUS Figure 5-8 SCALP NEVUS A: There is a broad junctional nevus. B: Nests at the dermoepidermal junction vary in size and shape and are admixed with solitary units of melanocytes, which display a lentiginous pattern and extend into follicular infundibular epithelium. More about this image found in SCALP NEVUS A: There is a broad junctional nevus. B: Nests at the dermoep...
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LENTIGO MALIGNA MELANOMA IN SITU WITH JUNCTIONAL NESTS  Irregularly placed ...
Published: 01 February 2024
LENTIGO MALIGNA MELANOMA IN SITU WITH JUNCTIONAL NESTS Figure 13-6 LENTIGO MALIGNA MELANOMA IN SITU WITH JUNCTIONAL NESTS Irregularly placed nests of varying size and shape are present at the dermoepidermal junction along with solitary units. The latter extend into follicular structures. There is... More about this image found in LENTIGO MALIGNA MELANOMA IN SITU WITH JUNCTIONAL NESTS Irregularly placed ...
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SCALP NEVUS  A: The compound nevus is associated with ectatic hair follicle...
Published: 01 February 2024
SCALP NEVUS Figure 5-10 SCALP NEVUS A: The compound nevus is associated with ectatic hair follicles and follicular cyst-like structures. The intradermal melanocytes are densely cellular and separated by the elongated rete ridges. B: The melanocytes are arranged in nests and solitary units. They ... More about this image found in SCALP NEVUS A: The compound nevus is associated with ectatic hair follicle...
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COMMON BLUE NEVUS  A: Variably dense aggregates of pigmented melanocytes ar...
Published: 01 February 2024
COMMON BLUE NEVUS Figure 8-4 COMMON BLUE NEVUS A: Variably dense aggregates of pigmented melanocytes are distributed around follicular units occupying a larger area in the reticular dermis. B: There are slender fusiform melanocytes with finely granular cytoplasmic melanin pigment and small oval ... More about this image found in COMMON BLUE NEVUS A: Variably dense aggregates of pigmented melanocytes ar...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-21
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... and subsequent soft tissue metastasis. FOLLICULAR MELANOMA Follicular or folliculotropic melanoma is a melanoma variant in which the in situ component is predominantly located within a follicular structure ( fig. 21-4 ) ( 3 ). Melanoma in situ exclusively confined to a follicle is exceedingly...
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
... diagnosing LM. Dermoscopic features of LM include asymmetrically pigmented or gray-colored follicular openings, perifollicular dots and granules giving rise to an annular pattern, and angulated pigmented lines that join to create zigzag lines or polygonal structures such as rhomboids ( 11 ). MICROSCOPIC...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-05
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... of melanocytes displaying a lentiginous pattern, with extension into adnexal structures ( fig. 5-8 ). Foci of suprabasilar melanocytes may be seen. At least focal stromal fibrosis is common ( fig. 5-9 ). Some nevi of the scalp are also associated with ectatic follicular ostia, small follicular cysts, and thin...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-06
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... in the spinous cell layer ( 13 ). Such pagetoid growth should be limited to the epidermis directly above the scar. Typically, both nests and solitary units of melanocytes are seen above the basal cell layer ( fig. 6-4 ). In persistent nevi, melanocytes may also involve eccrine and follicular epithelia ( fig. 6-5...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-12
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... solitary melanocyte is seen in the spinous cell layer (arrow) underneath a mound of parakeratosis. The melanocyte shows bland cytologic features. If cytologically, fairly bland melanocytes are seen in the spinous cell layer near the center of a dysplastic nevus, located around follicular ostia...
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
... growth; 4) adnexotropism with intra-adnexal location such as within the follicular sheath, sebaceous gland, eccrine epithelium, or arrector pili muscle ( fig. 2-6 ); 5) splaying (single-filing, Indian filing) of rows of melanocytes between undisturbed collagen bundles ( figs. 2-4 , 2-7 ); and 6...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-08
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... BLUE NEVUS A: Variably dense aggregates of pigmented melanocytes are distributed around follicular units occupying a larger area in the reticular dermis. B: There are slender fusiform melanocytes with finely granular cytoplasmic melanin pigment and small oval nuclei with smooth contours and a bland...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 18
Published: 01 January 2024
10.55418/9781933477367-12
ISBN-10: 1-933477-36-9
ISBN: 978-1-933477-36-7
... studied as a group. LYMPHOMAS Primary lymphomas of the breast are uncommon, and are by definition confined to the breast with or without regional lymph node involvement. Lymphoma is most often encountered in the breast as diffuse large B-cell lymphoma (DLBCL). Follicular lymphoma and extranodal...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch24
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
... , Brown   BW   Jr , Weiss   LM , Billingham   ME . “Quilty” revisited: a 10-year perspective . Hum Pathol   1995 ; 26 : 547 - 57 . 33. Sattar   HA , Husain   AN , Kim   AY , Krausz   T . The presence of a CD21+ follicular dendritic cell network distinguishes invasive Quilty...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch52
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
... , Mihaljevic   T , Cohn   LH . Metastatic carcinoid tumor of the heart . Ann Thorac Surg   2003 ; 76 : 1721 - 2 . 37. Shai   SE , Hsieh   SR , Song   YM , Shen   GH . Resection of follicular thyroid cancer metastasized to the left lower lobe of the lung extending into the left...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch57
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
... involvement in the majority of patients with cardiac lymphoma ( 6 – 8 ). Several types of lymphoma have been reported to occur primarily in the heart, including diffuse large B-cell lymphoma (DLBCL), follicular lymphoma, and Burkitt lymphoma. The vast majority (80 to 90 percent...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch41
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
... Acromegaly due to GH-producing adenoma c LCCSCT c or characteristic calcification on testicular ultrasound Thyroid follicular adenoma or carcinoma c or multiple, hypoechoic nodules on thyroid ultrasound in a young patient Psammomatous melanotic schwannomas...
Images
<span class="search-highlight">FOLLICULAR</span> ATRESIA  At ovulation, the follicles, which began to develop on ...
Published: 01 August 2023
FOLLICULAR ATRESIA Figure 1-5 FOLLICULAR ATRESIA At ovulation, the follicles, which began to develop on that cycle but did not reach ovulation, undergo atresia. There is infiltration of mononuclear inflammatory cells and regression of the granulosa and theca cells (left), resulting in a small fib... More about this image found in FOLLICULAR ATRESIA At ovulation, the follicles, which began to develop on ...
Images
<span class="search-highlight">FOLLICULAR</span> LYMPHOMA SECONDARILY INVOLVING FALLOPIAN TUBE
Published: 01 August 2023
FOLLICULAR LYMPHOMA SECONDARILY INVOLVING FALLOPIAN TUBE Figure 16-50 FOLLICULAR LYMPHOMA SECONDARILY INVOLVING FALLOPIAN TUBE More about this image found in FOLLICULAR LYMPHOMA SECONDARILY INVOLVING FALLOPIAN TUBE
Images
STRUMA OVARII  A: The tumors consist of thyroid tissue identical to eutopic...
Published: 01 August 2023
STRUMA OVARII Figure 13-18 STRUMA OVARII A: The tumors consist of thyroid tissue identical to eutopic thyroid. B: Intravascular invasion allows the tumor to be diagnosed as follicular carcinoma arising in a struma ovarii. C: Follicular variant of papillary thyroid carcinoma arising in a struma ... More about this image found in STRUMA OVARII A: The tumors consist of thyroid tissue identical to eutopic...
Images
SEX CORD-STROMAL TUMOR, NOS  A: Gross image.  B: The tumor cells resemble g...
Published: 01 August 2023
SEX CORD-STROMAL TUMOR, NOS Figure 12-15 SEX CORD-STROMAL TUMOR, NOS A: Gross image. B: The tumor cells resemble granulosa cells, but no FOXL2 mutation was detected. C: The tumor was primary in the peritoneum and did not involve the ovaries. D: In another example, the tumor showed neither tubular nor follicular growth, but rather sheets of indeterminate sex cord-stromal cells. No FOXL2 or DICER1 mutation was detected. More about this image found in SEX CORD-STROMAL TUMOR, NOS A: Gross image. B: The tumor cells resemble g...