Vulva and Vagina

Sep 21, 2016 by in PATHOLOGY & LABORATORY MEDICINE Comments Off on Vulva and Vagina

Fig. 30.1. Lichen simplex chronicus . Acanthosis, hyperkeratosis, and chronic inflammation in the dermis are typical features.   ♦ Hyperkeratosis, parakeratosis, and hypergranulosis may be present   ♦ Surface erosion…

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Breast

Sep 21, 2016 by in PATHOLOGY & LABORATORY MEDICINE Comments Off on Breast

Fig. 29.1. Fibrocystic change. (A) Cystically dilated ducts and (B) apocrine metaplasia are characteristic.   ♦ Type 1 cysts are typically lined by metaplastic apocrine cells and type 2 cysts…

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Pancreas

Sep 21, 2016 by in PATHOLOGY & LABORATORY MEDICINE Comments Off on Pancreas

Fig. 43.1. Amyloid deposition in the islets of Langerhans. Mild leukocytic infiltrates   Cystic Fibrosis ♦ Pancreatic involvement with “fibrocystic” appearance in 80–90%   ♦ Hyperviscous mucus precipitates in the…

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Ovary and Peritoneum

Sep 21, 2016 by in PATHOLOGY & LABORATORY MEDICINE Comments Off on Ovary and Peritoneum

Fig. 32.1. Ovarian serous surface inclusion lined by a flattened serous epithelium. Serous surface inclusions lack associated granulosa cells or luteinized stromal cells.   Follicular Cyst Clinical ♦ Follicular cysts…

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Bone Marrow

Sep 21, 2016 by in PATHOLOGY & LABORATORY MEDICINE Comments Off on Bone Marrow

Fig. 17.1. Chronic myelogenous leukemia. Peripheral blood smear with increased granulocytes with left shift, including increased basophils. Definition ♦ MPN associated with the BCR/ABL1 gene fusion of marrow stem cells,…

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Spleen

Sep 21, 2016 by in PATHOLOGY & LABORATORY MEDICINE Comments Off on Spleen

Fig. 16.1. Approach to examination of the spleen. Grossly, normal spleen has small white flecks in a background of purple-red, representing the white and red pulp, respectively The gross presentation…

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Soft Tissue Tumors

Sep 21, 2016 by in PATHOLOGY & LABORATORY MEDICINE Comments Off on Soft Tissue Tumors

Markers Tumors Staining pattern Comments/potential pitfalls MDM2/ CDK4 Well-differentiated liposarcoma Dedifferentiated liposarcoma Intimal sarcoma Nuclear 10% of well-dedifferentiated liposarcomas are negative by IHC and may need FISH for MDM2 amplification…

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Nonneoplastic Skin Diseases

Sep 21, 2016 by in PATHOLOGY & LABORATORY MEDICINE Comments Off on Nonneoplastic Skin Diseases

Fig. 19.1. Acute spongiotic dermatitis with spongiotic microvesicles. • In acute spongiotic dermatitis, the epidermis retains its normal “basket-weave” stratum corneum. The epidermis also has pale keratinocytes and spongiosis with…

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