Multicentric Asynchronous Endocrine Mucin-Producing Sweat Gland Carcinoma and Mucinous Carcinoma of the Skin [0.03%]
Ikuko Hirai,Joseph F Sobanko,Tara C Mitchell et al.
Ikuko Hirai et al.
Endocrine mucin-producing sweat gland carcinoma (EMPSGC) is an adnexal neoplasm which typically occurs on periorbital skin and demonstrates overlapping histopathologic features with primary mucinous carcinoma of the skin (MCS). Herein, we r...
Case Reports
Journal of cutaneous pathology. 2026 Apr 29. DOI:10.1111/cup.70122 2026
Hayley Zimbric,Gabrielle Brokamp,Catherine G Chung et al.
Hayley Zimbric et al.
Multicentric reticulohistiocytosis (MRH) is a systemic inflammatory disease with dermatologic, musculoskeletal, and mucosal manifestations with symmetric erosive arthritis and reddish-brown papulonodular lesions. Histopathologic findings in...
Case Reports
Journal of cutaneous pathology. 2026 Apr 29. DOI:10.1111/cup.70107 2026
Lauren M Larson,Marissa Yaldo,Hailey Olds et al.
Lauren M Larson et al.
Cutaneous lupus erythematosus (CLE) is a well-known autoimmune disorder within dermatology. However, findings of lipid-laden macrophages and xanthomas in a subset of these cases are less understood and usually labeled as a rare, incidental ...
Case Reports
Journal of cutaneous pathology. 2026 Apr 26. DOI:10.1111/cup.70110 2026
Cutaneous Acral Presentation of Indolent Mantle Cell Lymphoma With Prominent Nail Involvement and Atypical Immunophenotype [0.03%]
Q Wilton Sun,Sebastian A Cruz,Joshua Menke et al.
Q Wilton Sun et al.
Mantle cell lymphoma (MCL) is a rare, aggressive subtype of B-cell non-Hodgkin lymphoma with rare cutaneous involvement that typically indicates advanced systemic disease. We report a case of indolent MCL in a 56-year-old previously healthy...
Case Reports
Journal of cutaneous pathology. 2026 Apr 23. DOI:10.1111/cup.70125 2026
Diffuse CD30-Positive Cutaneous Infiltrate in a Clinically Suspected Hidradenitis Suppurativa Lesion: Histopathologic and Diagnostic Challenges [0.03%]
R Gervasi,G L Piazzetta,G Soluri et al.
R Gervasi et al.
Hidradenitis suppurativa (HS) is a chronic inflammatory skin disorder affecting apocrine gland-bearing areas. We report a 38-year-old male with a lesion in the left axilla, initially clinically interpreted as HS and resistant to antibiotics...
Case Reports
Journal of cutaneous pathology. 2026 Apr 22. DOI:10.1111/cup.70124 2026
Diagnostic Utility of PRAME and H3K27me3 in Distinguishing Malignant Melanoma From Proliferative Nodules on Congenital Melanocytic Nevi [0.03%]
Ozge Hurdogan,Can Baykal,İsmail Yilmaz et al.
Ozge Hurdogan et al.
Background: Malignant melanoma (MM) and proliferative nodules (PN) may arise in large/giant congenital melanocytic nevi (LCMN/GCMN), posing clinical and pathological challenges in differential diagnosis. We investigated i...
Cutaneous Manifestation of Monomorphic Epitheliotropic Intestinal T-Cell Lymphoma: A Clue to A Gastrointestinal Malignancy [0.03%]
肠T细胞淋巴瘤的皮肤表现：胃肠道肿瘤的一个线索
Fan Foon Cheo,Aashna Farishta,Briana M Garcia et al.
Fan Foon Cheo et al.
We present a rare case of cutaneous involvement of monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL). A 68-year-old man first presented with multiple purpuric patches which extended from his axilla to his groin. Biopsies demons...
Case Reports
Journal of cutaneous pathology. 2026 Apr 21. DOI:10.1111/cup.70123 2026
Eccrine Squamous Syringometaplasia Mimicking Acute Cutaneous GVHD in a Pediatric HSCT Recipient: Case Report and Brief Review of the Indexed Literature [0.03%]
儿童造血干细胞移植受者中类似急性皮肤GVHD的汗腺鳞状导管移行病变更：病例报告及文献综述
Benedetta Galli,Cecilia Catapano,Iacopo Ghini et al.
Benedetta Galli et al.
Eccrine squamous syringometaplasia (ESS) is an uncommon reactive alteration of eccrine ducts, most often reported in oncologic and transplant settings, where it may clinically mimic acute cutaneous graft-versus-host disease (GVHD). We descr...
Case Reports
Journal of cutaneous pathology. 2026 Apr 20. DOI:10.1111/cup.70112 2026
Synchronous Mucocutaneous Paracoccidioidomycosis and Oral Squamous Cell Carcinoma: Report of Two Rare Cases [0.03%]
黏膜皮肤 paracoccidioidomycosis 和口腔鳞状细胞癌的同期发生：两例罕见病例报道
José Alcides Almeida de Arruda,Giovanna Ferriello,Camila Metzner Tristão et al.
José Alcides Almeida de Arruda et al.
Paracoccidioidomycosis (PCM) is a neglected systemic mycosis in Latin America that frequently involves the oral cavity. We herein describe two rare cases of synchronous mucocutaneous PCM and oral squamous cell carcinoma (OSCC) in 42- and 48...
Case Reports
Journal of cutaneous pathology. 2026 Apr 16. DOI:10.1111/cup.70118 2026
Rare Secondary Neoplasms Arising in Epidermal Nevus: A Case Series and Literature Review [0.03%]
关于表皮痣继发罕见肿瘤的病例系列及文献回顾
Haya A Homsi,Melissa Piliang,Jennifer Lucas et al.
Haya A Homsi et al.
Malignant transformation is known to occur with many nevi, such as nevus sebaceus. However, cases of secondary tumors developing in an epidermal nevus (EN) are rare, with only a few case reports documented in the literature. We present thre...
Case Reports
Journal of cutaneous pathology. 2026 Apr 14. DOI:10.1111/cup.70084 2026