Assuntos
Poroma , Neoplasias das Glândulas Sudoríparas , Humanos , Poroma/diagnóstico por imagem , Poroma/cirurgia , Imageamento Tridimensional , Diagnóstico Diferencial , Neoplasias das Glândulas Sudoríparas/diagnóstico por imagem , Neoplasias das Glândulas Sudoríparas/cirurgia , Microscopia ConfocalRESUMO
Eccrine poroma is the term that includes benign neoplasms of the terminal duct of the eccrine sweat glands, which may clinically and dermoscopically resemble other melanoma and non-melanoma skin tumors. They are often located on the extremities (especially palms and soles), presenting as normochromic or erythematous papules and nodules, measuring up to 2 cm. Pigmented variants are uncommon, accounting for less than 20% of cases. This report describes a 37-year-old man who developed a large pigmented eccrine poroma on his right shoulder, causing diagnostic difficulty. Histopathological examination revealed a nodular neoplasm consisting of small, monomorphic, cuboidal cells, with ample, eosinophilic cytoplasm and well-defined borders, in addition to conspicuous intercellular bridges, with melanin deposits diffusely distributed inside them. The absence of cytological atypia, cellular pleomorphism, increased mitotic activity, and necrosis foci corroborated the diagnostic exclusion of porocarcinoma, which can develop from eccrine poroma.
Assuntos
Porocarcinoma Écrino , Poroma , Neoplasias Cutâneas , Neoplasias das Glândulas Sudoríparas , Adulto , Diagnóstico Diferencial , Humanos , MasculinoAssuntos
Epidermólise Bolhosa Distrófica , Epidermólise Bolhosa , Poroma , Neoplasias das Glândulas Sudoríparas , Epidermólise Bolhosa/genética , Epidermólise Bolhosa Distrófica/complicações , Epidermólise Bolhosa Distrófica/genética , Genes Recessivos , Humanos , Pele , Neoplasias das Glândulas Sudoríparas/complicações , Neoplasias das Glândulas Sudoríparas/diagnósticoRESUMO
Eccrine porocarcinoma (EPC) is a rare malignant skin tumor. The dermoscopy of invasive EPC reveals focal presence of whitish-pink, structureless areas surrounded by pinkish-white halos. In an eccrine poroma (EP), such areas present diffuse distribution in the "frog- eggs" pattern. We reported an EPC in situ that presents a transitional dermoscopy pattern between EP and invasive EPC. We found a diffuse distribution; whitish-pink, structureless areas surrounded by pinkish-white halos; a central exulceration and a polymorphic vascular pattern.
Assuntos
Porocarcinoma Écrino/diagnóstico por imagem , Poroma/diagnóstico por imagem , Neoplasias das Glândulas Sudoríparas/diagnóstico por imagem , Idoso , Biópsia , Dermoscopia/métodos , Diagnóstico Diferencial , Porocarcinoma Écrino/patologia , Feminino , Humanos , Perna (Membro) , Poroma/patologia , Neoplasias das Glândulas Sudoríparas/patologiaRESUMO
Abstract Eccrine porocarcinoma (EPC) is a rare malignant skin tumor. The dermoscopy of invasive EPC reveals focal presence of whitish-pink, structureless areas surrounded by pinkish-white halos. In an eccrine poroma (EP), such areas present diffuse distribution in the "frog- eggs" pattern. We reported an EPC in situ that presents a transitional dermoscopy pattern between EP and invasive EPC. We found a diffuse distribution; whitish-pink, structureless areas surrounded by pinkish-white halos; a central exulceration and a polymorphic vascular pattern.
Assuntos
Humanos , Feminino , Idoso , Neoplasias das Glândulas Sudoríparas/diagnóstico por imagem , Poroma/diagnóstico por imagem , Porocarcinoma Écrino/diagnóstico por imagem , Neoplasias das Glândulas Sudoríparas/patologia , Biópsia , Dermoscopia/métodos , Diagnóstico Diferencial , Poroma/patologia , Porocarcinoma Écrino/patologia , Perna (Membro)RESUMO
El poroma es un tumor benigno infrecuente derivado de la porción intraepitelial del epitelio ductal de la glándula sudorípara. La presentación clínica más habitual es un pápula o nódulo de color rosado a rojo, de pequeño diámetro, localizado con mayor frecuencia en palmas y plantas, generalmente asintomático. Debido a su variabilidad morfológica, los poromas son usualmente difíciles de reconocer, siendo la dermatoscopía una herramienta útil en su diagnóstico. Presentamos el caso de un paciente masculino con un gran tumor en su pierna derecha de 40 mm de diámetro, con características dermatoscópicas compatibles con poroma no pigmentado. El diagnóstico confirmatorio se realizó con una biopsia incisional seguido de la extirpación quirúrgica completa del tumor
Poroma is a rare benign tumour derived from the intraepithelial portion of the sweat glands' ductal epithelium. The most common clinical presentation is a pink to red papule or nodule, small in diameter, predominantly in the palms and soles and generally asymptomatic. Due to its morphologic variability, poromas are usually difficult to recognize, thus dermatoscopy becomes a useful aid in its diagnosis. We present the case of a male patient with a large tumour on his right leg, 40 mm in diameter, with dermatoscopic features consistent with nonpigmented poroma. Confirmatory diagnosis was made by incisional biopsy followed by the total surgical excision of the tumor.