A Case of Giant Pencil‐Core Granuloma

Abstract

Although pencil injury is a common occurrence, only six cases of so-called pencil-core granuloma have been reported. All of these granulomas were relatively small, and most of them simulated malignant melanoma. We report a giant pencil-core granuloma that developed on a patient's right palm. Its gross appearance was quite different from that of other cases previously reported; it was much larger and resembled a hemangioma.

Granuloma Caused by Carbon Deposition in the Dermis

“…However, some examinations reported that many giant cells and epithelioid cells were observed in pencil core granuloma [2, 3]. Hatano et al attributed this difference to granulomatous reactions at different stages [4].…”

Foreign body in the hip joint – An unusual presentation in a child

“…These have been more commonly reported in the orbit and the chest. There is a potential for long term complications like lead arthropathy (Peh and Reinus, 1995), granuloma (Yoshitatsu and Takagi, 2000) and soft-tissue sarcoma (Kulkarni et al, 2003). Osteomyelitis of the femoral neck following stab wounds by pencil has been previously reported (Volpin et al, 1992).…”

A Case of Graphite Foreign Body Misdiagnosed as Blue Nevus

“…Graphite foreign body granuloma(pencil core granuloma) is characterized by a delayed foreign body reaction against the remaining fragments of pencil lead and at the macroscopic level, it resembles malignant melanoma 2,12 . The occurrence of pencil core granulomas is rare, only a few case reports have been documented in literature [1][2][3]5,6,10,12 . Pencil core granulomas as well as silica granulomas appear to have delayed reactions, with lag periods of 1.5-58 years between injury and granuloma formation 10,13 .…”

“…Injury by a pencil is common and usually trivial [1][2][3] . However, several reports indicate that stab injuries caused by pencils can result in undesirable reactions, such as pigmentation, abscess formation, and soft tissue reaction [1][2][3][4][5] .…”

“…However, several reports indicate that stab injuries caused by pencils can result in undesirable reactions, such as pigmentation, abscess formation, and soft tissue reaction [1][2][3][4][5] . There are only a few previous case reports in literature of pencil core granuloma presenting to dermatologists, plastic surgeons, ophthalmologists, and neurosurgeons as a suspected melanoma, soft tissue sarcoma, hemangioma or abscess [1][2][3][4][5][6][7][8][9][10] . Here we report a 19-year-old woman with a foreign body, the lead of a pencil, misdiagnosed as a blue nevus.…”