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Lobular capillary hemangioma (LCH-PG) is a type of pyogenic granuloma characterized by proliferating blood vessels that resemble conventional granulation tissue. Granulation tissue is very often seen in association with ingrown toenails. Despite the close relationship between both entities, LCH-PG shows clinically different behaviors, such as rapid growth and frequent recurrence. Currently, it is unknown exactly how the different etiological factors contribute to the formation of differences between entities. We present a case of a large LCH-PG associated with chronic onychocryptosis in a 26-year-old man. Histopathological features included extensive signs of ulceration, hyperkeratosis, and patchy epidermal acanthosis with the presence of fibrous septa with lobular areas beneath the ulcerative area. The presence of stroma with a marked proliferation of blood vessels with wall thickening and mixed-type inflammatory changes was also characteristic. In advanced stages of onychocryptosis, as presented here, conventional granulation tissue or pyogenic granuloma can be clinically difficult to distinguish from other benign or malignant neoplasms. Histological examination is mandatory, and excisional biopsy can provide a definitive diagnosis.

Lobular capillary hemangioma (LCH-PG) is a type of pyogenic granuloma characterized by proliferating blood vessels that resemble conventional granulation tissue. Granulation tissue is very often seen in association with ingrown toenails. Despite the close relationship between both entities, LCH-PG shows clinically different behaviors, such as rapid growth and frequent recurrence. Currently, it is unknown exactly how the different etiological factors contribute to the formation of differences between entities. We present a case of a large LCH-PG associated with chronic onychocryptosis in a 26-year-old man. Histopathological features included extensive signs of ulceration, hyperkeratosis, and patchy epidermal acanthosis with the presence of fibrous septa with lobular areas beneath the ulcerative area. The presence of stroma with a marked proliferation of blood vessels with wall thickening and mixed-type inflammatory changes was also characteristic. In advanced stages of onychocryptosis, as presented here, conventional granulation tissue or pyogenic granuloma can be clinically difficult to distinguish from other benign or malignant neoplasms. Histological examination is mandatory, and excisional biopsy can provide a definitive diagnosis.

Lobular capillary hemangioma (LCH-PG) is a type of pyogenic granuloma characterized by proliferating blood vessels that resemble conventional granulation tissue. Granulation tissue is very often seen in association with ingrown toenails. Despite the close relationship between both entities, LCH-PG shows clinically different behaviors, such as rapid growth and frequent recurrence. Currently, it is unknown exactly how the different etiological factors contribute to the formation of differences between entities. We present a case of a large LCH-PG associated with chronic onychocryptosis in a 26-year-old man. Histopathological features included extensive signs of ulceration, hyperkeratosis, and patchy epidermal acanthosis with the presence of fibrous septa with lobular areas beneath the ulcerative area. The presence of stroma with a marked proliferation of blood vessels with wall thickening and mixed-type inflammatory changes was also characteristic. In advanced stages of onychocryptosis, as presented here, conventional granulation tissue or pyogenic granuloma can be clinically difficult to distinguish from other benign or malignant neoplasms. Histological examination is mandatory, and excisional biopsy can provide a definitive diagnosis.

Capillary hemangioma is a common benign tumor which can occur everywhere in the whole body, however its occurrence in posterior mediastinum is extremely rare, and to the best of our knowledge less than 20 cases have been reported in the English literature so far. Here in we report a 65-year-old lady who presented with prolonged cough and diagnosed to have a posterior mediastinal mass. Before operation, according to the site of tumor, it has been diagnosed as neurofibroma. It is very important to consider hemangioma before operation to reduce surgical complications, and it should be in the differential diagnosis of posterior mediastinal masses.

Capillary hemangioma is a common benign tumor which can occur everywhere in the whole body, however its occurrence in posterior mediastinum is extremely rare, and to the best of our knowledge less than 20 cases have been reported in the English literature so far. Here in we report a 65-year-old lady who presented with prolonged cough and diagnosed to have a posterior mediastinal mass. Before operation, according to the site of tumor, it has been diagnosed as neurofibroma. It is very important to consider hemangioma before operation to reduce surgical complications, and it should be in the differential diagnosis of posterior mediastinal masses.

Juvenile melanoma or Spitz's nevus is a rare form of benign melanocytic nevus that may be easily confused with both, a true malignant melanoma or vascular lesions capillary hemangiomas like. A case of an 8-year-old boy with a Spitz's nevus on his nasal lobe since the age of one year is presented; diagnosis and treatment of immature capillary hemangioma was performed. Histopathologic study showed ephitelioid melanocytic cells without atypia signs. Surgical excision of lesion was done, with succesful esthetic results., El melanoma juvenil o nevo de Spitz es una rara forma de nevo melanocitico benigno que puede ser confundido fácilmente, no sólo con un verdadero melanoma maligno, sino también con lesiones vasculares, tales como el hemangioma capilar. Presentamos el caso de un niño de 8 años con nevo de Spitz en el lóbulo nasal desde el año de edad, que fue diagnosticado y tratado como un hemangioma capilar inmaduro. El estudio histopatológico demostró células melanocíticas epiteloides sin signos de atipia. La lesión fue extirpada quirúrgicamente con resultados estéticos satisfactorios.