Pott's puffy tumor: as a very rare and unpredicted complication of ipsilateral pan sinusitis - case presentation and review of articles

Pott's puffy tumor is considered as a rare clinical entity. It is developed as a rare complication of frontal sinusitis. In addition, the trauma to the frontal area is another suggested cause. The Pott's puffy tumor is presented as a forehead swelling due to sub-periosteal collection. Although, the Pott's puffy tumor is a rare condition but at the same time, it can be serious because it may lead to life threatening complications namely, extradural abscess, subdural abscess, meningitis, encephalitis, and brain abscess. Thus, the Pott's puffy tumor is classified as a very significant surgical emergency.

Spinal Subdural Abscess Mimicking An Intradural-Extramedullary Tumor- A Rare Case Scenario

Spinal subdural abscesses (SSA) are very rare disease. The etiologies of SSA are hematogenous spread, iatrogenic contamination, and local extension. Elevated WBC counts, ESR, and C-reactive protein are usually found in laboratory tests. But they are not sensitive indicators of SSA, especially chronic abscesses patient tend to have a less specific characteristic. We report the case of a healthy child with subdural abscess referred to our hospital as an intradural– extramedullary (IDEM) tumor.

Spinal Subdural Abscess following Transforaminal Lumbar Interbody Fusion

Spinal subdural abscesses are rare lesions. We report the case of surgical site infection complicated with meningitis and rapidly progressive spinal subdural abscess caused by P. aeruginosa following transforaminal lumbar interbody fusion (TLIF). A 72-year-old woman was admitted to our hospital complaining of drop foot syndrome and sciatica caused by stenosis of the L5/6 intervertebral foramen accompanied by L5 lumbar vertebral fracture. Accordingly, TLIF of L5-L6 and balloon kyphoplasty of L5 were performed. On the 3rd postoperative day (POD), she was diagnosed with surgical site infection complicated with bacterial meningitis. Subcutaneous fluid, blood, and cerebrospinal fluid cultures indicated P. aeruginosa. On the 7th POD, a repeat MRI showed a large dorsal fluid collection consistent with a subdural infection and massive cauda equina compression. We performed debridement and instrument removal and found a dural laceration that was not observed during the first operation. An intraoperative insensible dural laceration may cause bacteria intrusion into the subdural space.

Cotton bud in external ear canal causing necrotising otitis externa and subdural abscess

Necrotising otitis externa (NOE) is an infection originating in the soft tissues of the external auditory canal (EAC) spreading to the surrounding bone and rarely causing intracranial complications. It is usually caused by Pseudomonas aeruginosa and has historically occurred in elderly patients with diabetes or immunodeficiency. EAC foreign body is a risk factor for otitis externa but has not been described in NOE. A healthy 31-year-old man presented with new-onset seizures and worsening left-sided otalgia and otorrhoea. Brain imaging revealed left temporal subdural abscesses superior to the petrous bone. A retained cotton bud was identified in the left EAC, along with osseocartilaginous junction and mastoid granulation tissue. The foreign body was removed; a cortical mastoidectomy performed and intravenous antibiotic administered. At 10 weeks, the patient remained well, with no neurological deficit and no residual ear symptoms, and CT demonstrated complete resolution of the intracranial abscesses.